How long is the flight from London to Portland?

There are many flights that can get you from London to Portland in 13h 05m. Fly via United Airlines, Icelandair, or Lufthansa to get the fastest option. There are 4921 mi between London and Portland. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines flying from London to Portland round-trip?

Currently priced at £428, Icelandair will fly you from London to Portland and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and Finnair - these airlines can fly you to your destination from £501 and £506, respectively. Icelandair is 34% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from London to Portland one-way?

For one-way options, check prices for Finnair. According to our data, you can fly for as low as £412. Users have also found prices from £418 and £618 on Delta and Virgin Atlantic, respectively.

In terms of precipitation, rainfall in Portland ranges from 18.0 - 142.0 inches per month. November is typically the wettest month, when rainfall can reach 142.0 mm. July is typically the driest time to visit Portland when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Portland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular routes from London to Portland?

The most popular route from London to Portland is London Heathrow - Portland. You may also consider London Gatwick - Portland or London City - Portland.

What are the cheapest flights from London to Portland?

While on average a flight from London to Portland is generally £818, our data shows the cheapest flight currently is £449. When looking at the most popular route, (London Heathrow - Portland), you can expect to pay £539 for that flight.

What are the most reliable airlines from London to Portland?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to Portland on time: American Airlines (70%), Alaska Airlines (70%), Aer Lingus (70%).

What are the most popular airlines that fly from London to Portland?

British Airways, Icelandair and Finnair are the most popular airlines when flying from London to Portland.

What airport do you fly into for flights to Portland from London?

Most people fly into Portland (PDX) if they book a flight to Portland from London. On average, Portland has 7 inbound flights from London per day from 11 airlines. Portland is conveniently located just 6.0 mi from Portland’s city center.

Can I find deals for flights from London to Portland that include hotel bookings?

Yes. In addition to deals on London to Portland flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to Portland?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Portland.

Can I find deals for business class flights from London to Portland?

Yes. Cheapflights offers flight deals from London to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£302+ Cheap Flights from London to Portland

Q: How much does it cost for a return flight from London to Portland?

Airfare is below average for this route at the moment. London to Portland flights typically cost between £582 and £738 in November. The cheapest return flight price found within the last 3 days was £506 on Multiple Airlines (5 Nov-10 Nov).

Cheapflights Tip: The best prices from London to Portland are usually found in September or March, booked 53 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from London to Portland

Round-trip from	£506
One-way from	£302
Popular in	July
Cheapest in	September
Average price	£657
Good round-trip deal	£590 or less
Good one-way deal	£506 or less

5/11-10/11
2 total stops
32h 15m total
London to Portland

Search Deals

13/11
3 total stops
46h 01m total
London to Portland

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£78 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Price to beat on a round-trip flight from London (LON) to Portland.

Search Deals

Price to beat on a one-way flight from London (LON) to Portland.

Search Deals

Find flight deals from London to Portland

Enter your travel dates to find the best prices.

Cheapest flights from London to Portland
Explore the most affordable flight options available from London to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Wed 5/1108:00LTN - PDX

1 stop17h 00mMultiple Airlines

Mon 10/1114:45PDX - LTN

1 stop15h 15mMultiple Airlines

Deal found 13/10£506

Mon 10/1111:55LGW - PDX

1 stop13h 05mIcelandair

Mon 24/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 13/10£527

Mon 24/1111:55LGW - PDX

1 stop13h 05mIcelandair

Thu 4/1214:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 14/10£536

Mon 17/1114:30LHR - PDX

1 stop26h 45mAir Canada

Mon 1/1209:50PDX - LHR

1 stop18h 00mAir Canada

Deal found 15/10£537

Wed 12/1111:55LGW - PDX

1 stop13h 05mIcelandair

Mon 17/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 14/10£538

Wed 12/1109:00LHR - PDX

2 stops21h 35mMultiple Airlines

Mon 17/1112:55PDX - LHR

1 stop12h 45mMultiple Airlines

Deal found 15/10£539

Mon 10/1114:30LHR - PDX

1 stop26h 45mAir Canada

Mon 24/1115:15PDX - LHR

1 stop12h 35mAir Canada

Deal found 13/10£539

Tue 11/1120:35LHR - PDX

1 stop28h 25mIcelandair

Tue 18/1114:45PDX - LHR

1 stop12h 05mIcelandair

Deal found 14/10£541

Mon 10/1109:00LHR - PDX

2 stops21h 36mMultiple Airlines

Mon 24/1107:00PDX - LHR

1 stop14h 55mMultiple Airlines

Deal found 13/10£542

Mon 10/1112:15LHR - PDX

1 stop12h 45mIcelandair

Mon 24/1114:45PDX - LHR

1 stop12h 05mIcelandair

Deal found 13/10£542

Mon 10/1109:00LHR - PDX

2 stops21h 36mMultiple Airlines

Mon 17/1110:52PDX - LHR

1 stop13h 03mMultiple Airlines

Deal found 13/10£543

Mon 3/1111:55LGW - PDX

1 stop13h 05mIcelandair

Mon 10/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 13/10£544

Best flights from London to Portland
Discover carefully curated flight deals from London to Portland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 October 2025.

Tue 11/1108:30LHR - PDX

2 stops20h 08mUnited Airlines

Tue 18/1108:30PDX - LHR

2 stops16h 40mUnited Airlines

Deal found 14/10£554

Mon 3/1111:55LGW - PDX

1 stop13h 05mIcelandair

Thu 13/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 13/10£570

Tue 11/1109:50LCY - PDX

2 stops22h 36mMultiple Airlines

Tue 18/1115:54PDX - LCY

2 stops16h 46mMultiple Airlines

Deal found 14/10£579

Fri 6/306:35LHR - PDX

2 stops19h 55mLufthansa

Tue 10/307:11PDX - LHR

1 stop21h 04mLufthansa

Deal found 14/10£582

Fri 6/306:00LHR - PDX

2 stops24h 16mSWISS

Tue 10/310:56PDX - LHR

2 stops25h 19mSWISS

Deal found 14/10£582

Mon 24/1113:45LHR - PDX

Nonstop10h 10mBritish Airways

Wed 3/1212:00PDX - LHR

1 stop14h 00mBritish Airways

Deal found 13/10£603

Wed 12/1106:30LHR - PDX

1 stop12h 55mDelta

Tue 18/1100:35PDX - LHR

1 stop22h 30mDelta

Deal found 13/10£617

Wed 3/1210:20LHR - PDX

2 stops20h 36mScandinavian Airlines

Sun 11/113:00PDX - LHR

3 stops24h 35mScandinavian Airlines

Deal found 14/10£630

Tue 11/1118:55LCY - PDX

1 stop24h 30mVirgin Atlantic

Tue 18/1111:35PDX - LCY

2 stops21h 00mVirgin Atlantic

Deal found 14/10£650

Wed 5/1111:55LGW - PDX

1 stop13h 05mIcelandair

Tue 11/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 13/10£570

Mon 24/1109:50LCY - PDX

2 stops22h 36mMultiple Airlines

Thu 4/1210:10PDX - LCY

2 stops22h 30mMultiple Airlines

Deal found 14/10£579

Wed 29/1010:30LHR - PDX

2 stops20h 56mUnited Airlines

Wed 19/1109:50PDX - LHR

1 stop18h 00mUnited Airlines

Deal found 14/10£599

Mon 3/1118:40LGW - PDX

2 stops35h 56mSWISS

Mon 10/1110:52PDX - LGW

2 stops22h 58mSWISS

Deal found 13/10£616

Tue 11/1106:30LHR - PDX

2 stops24h 11mDelta

Mon 17/1100:35PDX - LHR

1 stop22h 30mDelta

Deal found 14/10£620

Wed 5/1111:55LGW - PDX

1 stop13h 05mIcelandair

Mon 10/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 13/10£570

Mon 10/1109:50LCY - PDX

2 stops22h 36mMultiple Airlines

Mon 24/1107:00PDX - LCY

2 stops21h 50mMultiple Airlines

Deal found 13/10£582

Wed 12/1107:45LCY - PDX

2 stops22h 20mVirgin Atlantic

Mon 17/1113:25PDX - LCY

1 stop12h 05mVirgin Atlantic

Deal found 14/10£654

Fri 31/1011:55LGW - PDX

1 stop13h 05mIcelandair

Mon 3/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 14/10£576

Tue 11/1113:00LGW - PDX

2 stops19h 09mMultiple Airlines

Tue 18/1107:05PDX - LGW

1 stop14h 55mMultiple Airlines

Deal found 14/10£592

Mon 10/1108:40LCY - PDX

2 stops17h 03mVirgin Atlantic

Mon 24/1113:25PDX - LCY

1 stop12h 05mVirgin Atlantic

Deal found 13/10£654

Mon 10/1109:50LCY - PDX

2 stops20h 55mMultiple Airlines

Mon 17/1108:20PDX - LCY

2 stops20h 30mMultiple Airlines

Deal found 13/10£593

Fri 6/311:55LGW - PDX

1 stop13h 05mIcelandair

Tue 10/315:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 14/10£593

Wed 5/1111:55LGW - PDX

1 stop13h 05mIcelandair

Sat 8/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 13/10£595

Mon 10/1108:00LTN - PDX

1 stop17h 00mMultiple Airlines

Mon 17/1114:45PDX - LTN

1 stop15h 15mMultiple Airlines

Deal found 13/10£608

Sun 2/1111:55LGW - PDX

1 stop13h 05mIcelandair

Tue 11/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 13/10£595

Thu 13/1109:40LCY - PDX

2 stops21h 11mMultiple Airlines

Thu 20/1108:20PDX - LCY

2 stops20h 30mMultiple Airlines

Deal found 14/10£645

Fri 6/312:15LHR - PDX

1 stop12h 45mIcelandair

Tue 10/315:45PDX - LHR

1 stop12h 05mIcelandair

Deal found 14/10£596

Thu 30/1020:35LHR - PDX

1 stop28h 25mIcelandair

Mon 3/1114:45PDX - LHR

1 stop20h 45mIcelandair

Deal found 14/10£606

Mon 10/1107:35STN - PDX

2 stops17h 25mMultiple Airlines

Mon 17/1114:45PDX - STN

2 stops17h 00mMultiple Airlines

Deal found 13/10£676

Sun 2/1111:55LGW - PDX

1 stop13h 05mIcelandair

Sat 8/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 13/10£620

Direct flights from London to Portland
Explore direct flight options from London to Portland based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 October 2025.

Mon 17/1113:45LHR - PDX

Nonstop10h 10mBritish Airways

Mon 1/1217:45PDX - LHR

Nonstop9h 35mBritish Airways

Deal found 15/10£576

Mon 10/1113:45LHR - PDX

Nonstop10h 10mBritish Airways

Mon 17/1117:45PDX - LHR

Nonstop9h 35mBritish Airways

Deal found 13/10£594

Mon 24/1113:45LHR - PDX

Nonstop10h 10mBritish Airways

Wed 3/1217:45PDX - LHR

Nonstop9h 35mBritish Airways

Deal found 14/10£596

Wed 12/1113:45LHR - PDX

Nonstop10h 10mAmerican Airlines

Mon 17/1117:45PDX - LHR

Nonstop9h 35mAmerican Airlines

Deal found 15/10£609

Mon 10/1113:45LHR - PDX

Nonstop10h 10mAmerican Airlines

Mon 24/1117:45PDX - LHR

Nonstop9h 35mAmerican Airlines

Deal found 13/10£610

Mon 10/1113:45LHR - PDX

Nonstop10h 10mBritish Airways

Mon 24/1117:45PDX - LHR

Nonstop9h 35mBritish Airways

Deal found 13/10£613

Wed 26/1113:45LHR - PDX

Nonstop10h 10mBritish Airways

Wed 21/117:45PDX - LHR

Nonstop9h 35mBritish Airways

Deal found 14/10£625

Mon 10/1113:45LHR - PDX

Nonstop10h 10mMultiple Airlines

Mon 24/1117:45PDX - LHR

Nonstop9h 35mMultiple Airlines

Deal found 13/10£630

Mon 3/1113:45LHR - PDX

Nonstop10h 10mAmerican Airlines

Mon 10/1117:45PDX - LHR

Nonstop9h 35mAmerican Airlines

Deal found 13/10£643

Mon 10/1113:45LHR - PDX

Nonstop10h 10mBritish Airways

Mon 12/117:45PDX - LHR

Nonstop9h 35mBritish Airways

Deal found 13/10£652

Last-minute flights from London to Portland
Discover last-minute flight deals from London to Portland. Data last updated 15 October 2025 and is based on user searches.

Mon 3/1111:55LGW - PDX

1 stop13h 05mIcelandair

Mon 10/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 13/10£544

Mon 3/1112:15LHR - PDX

1 stop12h 45mIcelandair

Mon 10/1114:45PDX - LHR

1 stop12h 05mIcelandair

Deal found 13/10£547

Mon 3/1111:55LGW - PDX

1 stop13h 05mIcelandair

Tue 11/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 13/10£551

Wed 5/1108:00LTN - PDX

1 stop17h 00mMultiple Airlines

Mon 10/1114:45PDX - LTN

1 stop15h 15mMultiple Airlines

Deal found 13/10£506

Mon 10/1111:55LGW - PDX

1 stop13h 05mIcelandair

Mon 24/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 13/10£527

Mon 10/1113:25LHR - PDX

2 stops27h 50mAir Canada

Mon 24/1115:15PDX - LHR

1 stop12h 35mAir Canada

Deal found 13/10£539

Mon 10/1109:00LHR - PDX

2 stops21h 36mMultiple Airlines

Mon 24/1107:00PDX - LHR

1 stop14h 55mMultiple Airlines

Deal found 13/10£542

Mon 10/1112:15LHR - PDX

1 stop12h 45mIcelandair

Mon 24/1114:45PDX - LHR

1 stop12h 05mIcelandair

Deal found 13/10£542

Mon 10/1109:00LHR - PDX

2 stops21h 36mMultiple Airlines

Mon 17/1110:52PDX - LHR

1 stop13h 03mMultiple Airlines

Deal found 13/10£543

Tue 11/1120:35LHR - PDX

1 stop28h 25mIcelandair

Tue 18/1114:45PDX - LHR

1 stop12h 05mIcelandair

Deal found 14/10£541

Wed 12/1111:55LGW - PDX

1 stop13h 05mIcelandair

Mon 17/1114:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 14/10£538

Mon 24/1111:55LGW - PDX

1 stop13h 05mIcelandair

Thu 4/1214:45PDX - LGW

1 stop12h 10mIcelandair

Deal found 14/10£536

One-way flights from London to Portland
Search for one-way flight options from London to Portland. Find affordable one-way fares based on user searches. Data last updated 15 October 2025.

Thu 13/1121:55LTN - PDX

3 stops46h 01mMultiple Airlines

Deal found 14/10£302

Sun 16/1107:40STN - PDX

3 stops59h 53mMultiple Airlines

Deal found 14/10£325

Sat 11/406:45LGW - PDX

3 stops34h 30mMultiple Airlines

Deal found 11/10£331

Fri 9/108:10STN - PDX

3 stops47h 59mMultiple Airlines

Deal found 13/10£334

Thu 13/1117:50STN - PDX

3 stops47h 49mMultiple Airlines

Deal found 14/10£340

Wed 12/1120:55STN - PDX

2 stops55h 12mMultiple Airlines

Deal found 14/10£343

Fri 9/121:40LTN - PDX

3 stops46h 58mMultiple Airlines

Deal found 13/10£345

Sun 16/1115:40LTN - PDX

3 stops51h 53mMultiple Airlines

Deal found 14/10£346

Sun 16/1109:40LGW - PDX

3 stops57h 53mMultiple Airlines

Deal found 14/10£350

Mon 27/1011:35STN - PDX

3 stops52h 56mMultiple Airlines

Deal found 13/10£376

Sun 2/1105:50LGW - PDX

3 stops58h 59mMultiple Airlines

Deal found 11/10£385

Tue 11/1118:30LHR - PDX

2 stops34h 20mMultiple Airlines

Deal found 14/10£387

Fly from

Fly to

Route

Depart

Return

Price

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Tue 11/11

08:30-20:38

2 stops20h 08m

Portland

Tue 18/11

08:30-09:10

2 stops16h 40m

£554

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Mon 3/11

11:55-17:00

1 stop13h 05m

Portland

Thu 13/11

14:45-10:55

1 stop12h 10m

£570

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Wed 5/11

11:55-17:00

1 stop13h 05m

Portland

Tue 11/11

14:45-10:55

1 stop12h 10m

£570

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Wed 5/11

11:55-17:00

1 stop13h 05m

Portland

Mon 10/11

14:45-10:55

1 stop12h 10m

£570

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Fri 31/10

11:55-18:00

1 stop13h 05m

Portland

Mon 3/11

14:45-10:55

1 stop12h 10m

£576

LondonPortland

LCY - PDX

LCYPDX

London City

Tue 11/11

09:50-00:26

2 stops22h 36m

Portland

Tue 18/11

15:54-16:40

2 stops16h 46m

£579

LondonPortland

LCY - PDX

LCYPDX

London City

Mon 24/11

09:50-00:26

2 stops22h 36m

Portland

Thu 4/12

10:10-16:40

2 stops22h 30m

£579

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Fri 6/3

06:35-18:30

2 stops19h 55m

Portland

Tue 10/3

07:11-11:15

1 stop21h 04m

£582

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Fri 6/3

06:00-22:16

2 stops24h 16m

Portland

Tue 10/3

10:56-19:15

2 stops25h 19m

£582

LondonPortland

LCY - PDX

LCYPDX

London City

Mon 10/11

09:50-00:26

2 stops22h 36m

Portland

Mon 24/11

07:00-12:50

2 stops21h 50m

£582

Flights are sorted by cheapest return flights first.

Deals found on 14/10

Showing 1-10 of 60 results

...

Best time to book a flight from London to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from London with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Portland

How far ahead should I book a flight from London to Portland?

The best time to book flights from London to Portland is 53 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London to Portland?

Currently, December is the cheapest month in which you can book a flight from London to Portland (average of £444). Flying from London to Portland in July is currently the most expensive (average of £564). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to PDX?

When flying from London to Portland, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 18% versus a flight in the afternoon.

What is the cheapest day to fly from London to Portland?

Travellers seeking maximum savings on their London to Portland flight should consider departing on Thursday at midday when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to Portland

The most flights from LON to PDX are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost for a return flight from London to Portland?

What’s the top stopover airport for flights from London to Portland?

Reykjavik (KEF) – chosen by Cheapflights users on 47% of one-stop itineraries from London to Portland on Cheapflights.

What’s the cheapest stopover airport for flights from London to Portland?

Calgary (YYC) is the most affordable one-stop option, with an average return flight price of £474.

What’s the fastest stopover option from London to Portland?

Flights via Vancouver (YVR) have the shortest average one-way travel time for one-stop routes: 12h 20m.

Which airport typically offers the quickest stopover for flights from London to Portland?

Flights via Salt Lake City (SLC) offer the fastest connection on this route, with an average stopover time of 1h 04m.

Reviews of airlines servicing Portland

Read through reviews of airlines operating flights from London to Portland, such as Finnair, Virgin Atlantic, andIcelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Finnair

7.6

Good

1,332 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Virgin Atlantic

7.4

Good

667 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Icelandair

7.0

Good

556 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Lufthansa

6.8

Okay

7,489 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

British Airways

6.7

Okay

7,457 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Related info for your journey

What airport do you fly into for flights to Portland from London?
Most people fly into Portland (PDX) if they book a flight to Portland from London. On average, Portland has 7 inbound flights from London per day from 11 airlines. Portland is conveniently located just 6.0 mi from Portland’s city center.
How long is the flight from London to Portland?
There are many flights that can get you from London to Portland in 13h 05m. Fly via United Airlines, Icelandair, or Lufthansa to get the fastest option. There are 4921 mi between London and Portland. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from London to Portland round-trip?
Currently priced at £428, Icelandair will fly you from London to Portland and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and Finnair - these airlines can fly you to your destination from £501 and £506, respectively. Icelandair is 34% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from London to Portland one-way?
For one-way options, check prices for Finnair. According to our data, you can fly for as low as £412. Users have also found prices from £418 and £618 on Delta and Virgin Atlantic, respectively.
What are the most popular routes from London to Portland?
The most popular route from London to Portland is London Heathrow - Portland. You may also consider London Gatwick - Portland or London City - Portland.
What are the most reliable airlines from London to Portland?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to Portland on time: American Airlines (70%), Alaska Airlines (70%), Aer Lingus (70%).
What are the cheapest flights from London to Portland?
While on average a flight from London to Portland is generally £818, our data shows the cheapest flight currently is £449. When looking at the most popular route, (London Heathrow - Portland), you can expect to pay £539 for that flight.
Can I find deals for flights from London to Portland that include hotel bookings?
Yes. In addition to deals on London to Portland flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Portland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Portland.
Can I find deals for business class flights from London to Portland?
Yes. Cheapflights offers flight deals from London to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to Portland?
Currently, December is the cheapest month in which you can book a flight from London to Portland (average of £444). Flying from London to Portland in July is currently the most expensive (average of £564). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Fly from London to Portland on these airlines

British Airways flights from London to Portland

Finnair flights from London to Portland

Virgin Atlantic flights from London to Portland

Alternative routes for London to Portland

Other flights to Portland

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Portland to London Heathrow Airport flights

Top 10 airlines flying from London to Portland

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£428	Average£591	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Air Canada	Cheapest£501	Average£580	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Finnair	Cheapest£506	Average£607	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Lufthansa	Cheapest£509	Average£618	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
British Airways	Cheapest£511	Average£677	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£518	Average£612	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
KLM	Cheapest£526	Average£807	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Virgin Atlantic	Cheapest£527	Average£667	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
American Airlines	Cheapest£545	Average£697	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Iberia	Cheapest£577	Average£746	FlexibilityNo cancel fee	On-time77%	Search Iberia flights

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How does Cheapflights help users find flights from London to Portland?

Cheapflights helps you search for flights from London to Portland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to Portland?

Cheapflights helps you find that perfect flight to Portland from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to Portland with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Portland, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to Portland become cheaper?

Yes, Cheapflights offers price alerts on London to Portland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from London to Portland from £302

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to Portland are usually found in September or March, booked 53 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from London to Portland

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Find flight deals from London to Portland

Cheapest flights from London to PortlandExplore the most affordable flight options available from London to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Explore the most affordable flight options available from London to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Portland that are best for you.

Best time to book a flight from London to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from London with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London to Portland

How far ahead should I book a flight from London to Portland?

Use this chart to determine the optimal time to book a return flight from London to Portland. Price data was last updated on 10 October 2025.

What is the cheapest month to book a flight from London to Portland?

What is the cheapest time of day to fly from LON to PDX?

Find hourly flight availability from London to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 October 2025.

What is the cheapest day to fly from London to Portland?

Use this chart to determine the cheapest time to fly return from London to Portland. Price data was last updated on 20 October 2024.

Weekly flight availability from London to Portland

Explore weekly flight availability from London to Portland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 October 2025.

How much does it cost for a return flight from London to Portland?

What’s the top stopover airport for flights from London to Portland?

Share of one-stop return flights from London to Portland chosen by Cheapflights users in the past 12 months, using the same stopover each way.

What’s the cheapest stopover airport for flights from London to Portland?

Average return fare for one-stop flights from London to Portland, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

What’s the fastest stopover option from London to Portland?

Shortest average travel time for one-stop one-way flights from London to Portland, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Which airport typically offers the quickest stopover for flights from London to Portland?

Average stopover duration for one-stop one-way flights from London to Portland, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Portland

Read through reviews of airlines operating flights from London to Portland, such as Finnair, Virgin Atlantic, andIcelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Portland from London?

How long is the flight from London to Portland?

What are the cheapest airlines flying from London to Portland round-trip?

What are the cheapest airlines to fly from London to Portland one-way?

What are the most popular routes from London to Portland?

What are the most reliable airlines from London to Portland?

What are the cheapest flights from London to Portland?

Can I find deals for flights from London to Portland that include hotel bookings?

How can I find direct flights from London to Portland?

Can I find deals for business class flights from London to Portland?

What is the cheapest month to book a flight from London to Portland?

Travelling to a place near Portland?

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Fly from London to Portland on these airlines

Choose from the following airlines for your flight from London to Portland. Flights are based on user searches made on Cheapflights and were last updated on 15 October 2025.

Top 10 airlines flying from London to Portland

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Portland?

Why should you use Cheapflights to find cheap flight tickets from London to Portland?

Can Cheapflights find flights from London to Portland with no change fees?

Can Cheapflights notify me if prices for flights from London to Portland become cheaper?

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Cheapest flights from London to Portland
Explore the most affordable flight options available from London to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.