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Cheap flights from London Heathrow Airport to Portland from £500

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 25/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PDX
20 Aug — 27 Aug1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Portland are usually found in November or January, booked 50 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from Heathrow to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 August 2025.

Round-trip from

£535

One-way from

£500

Popular in

July

Cheapest in

November

Average price

£788

Good round-trip deal

£618 or less

Good one-way deal

£634 or less
British Airways
  • British Airways
  • 1/9-10/9
  • 1 total stop
  • 24h 35m total
  • London to Portland
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25/10
  • 25/10
  • 2 total stops
  • 45h 49m total
  • London to Portland
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£93 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from London Heathrow to Portland.
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Price to beat on a one-way flight from London Heathrow to Portland.
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Find flight deals from Heathrow to Portland

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

Mon 1/915:40LHR - PDX
Nonstop9h 55mBritish Airways
Wed 10/914:05PDX - LHR
1 stop14h 40mBritish Airways
Deal found 13/8£535
Thu 4/908:40LHR - PDX
2 stops18h 06mMultiple Airlines
Mon 8/919:40PDX - LHR
2 stops32h 10mMultiple Airlines
Deal found 13/8£536
Fri 5/914:10LHR - PDX
1 stop12h 36mAir Canada
Tue 9/907:00PDX - LHR
2 stops15h 30mAir Canada
Deal found 13/8£537
Tue 9/907:30LHR - PDX
2 stops17h 52mUnited Airlines
Tue 16/910:51PDX - LHR
1 stop16h 54mUnited Airlines
Deal found 12/8£538
Mon 1/908:30LHR - PDX
2 stops20h 07mUnited Airlines
Mon 13/1005:30PDX - LHR
2 stops21h 40mUnited Airlines
Deal found 12/8£538
Tue 9/915:40LHR - PDX
Nonstop9h 55mBritish Airways
Tue 16/914:06PDX - LHR
1 stop14h 39mBritish Airways
Deal found 12/8£539
Tue 9/911:05LHR - PDX
1 stop15h 26mBrussels Airlines
Tue 16/908:30PDX - LHR
1 stop13h 50mBrussels Airlines
Deal found 12/8£540
Mon 1/906:30LHR - PDX
1 stop12h 50mVirgin Atlantic
Wed 10/911:50PDX - LHR
1 stop13h 05mVirgin Atlantic
Deal found 13/8£541
Mon 1/909:30LHR - PDX
2 stops19h 07mUnited Airlines
Wed 10/912:54PDX - LHR
1 stop14h 41mUnited Airlines
Deal found 13/8£541
Tue 9/907:30LHR - PDX
2 stops19h 16mMultiple Airlines
Thu 18/910:00PDX - LHR
2 stops17h 50mMultiple Airlines
Deal found 14/8£542
Mon 25/812:20LHR - PDX
1 stop14h 12mUnited Airlines
Tue 9/910:55PDX - LHR
1 stop14h 45mUnited Airlines
Deal found 13/8£543
Tue 9/918:40LHR - PDX
2 stops32h 06mSWISS
Thu 18/908:30PDX - LHR
1 stop19h 15mSWISS
Deal found 14/8£544

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 August 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Portland that are best for you.

Fly from

Heathrow

Fly to

Portland

Route

Depart

Return

Price

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 1/9

15:40-17:35

Nonstop9h 55m

Portland

Wed 10/9

14:05-12:45

1 stop14h 40m

£535

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 29/9

14:10-18:46

1 stop12h 36m

Portland

Mon 6/10

08:35-06:20

1 stop13h 45m

£536

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Fri 5/9

14:10-18:46

1 stop12h 36m

Portland

Tue 9/9

07:00-06:30

2 stops15h 30m

£537

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 8/9

06:30-14:46

2 stops16h 16m

Portland

Sun 21/9

10:51-11:45

1 stop16h 54m

£537

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Fri 12/9

21:25-17:55

1 stop28h 30m

Portland

Sat 20/9

15:20-11:55

1 stop12h 35m

£538

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Thu 6/11

06:30-18:30

2 stops20h 00m

Portland

Thu 27/11

15:15-07:10

2 stops31h 55m

£538

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Fri 5/9

20:05-18:46

2 stops30h 41m

Portland

Tue 9/9

10:55-10:40

2 stops15h 45m

£538

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Mon 29/9

08:20-17:04

1 stop16h 44m

Portland

Mon 6/10

19:25-13:00

Nonstop9h 35m

£538

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Thu 11/9

21:25-17:55

1 stop28h 30m

Portland

Sat 20/9

15:20-11:55

1 stop12h 35m

£538

LondonPortland

LHR - PDX

LHRPDX

London Heathrow

Fri 12/9

09:30-22:37

2 stops21h 07m

Portland

Fri 19/9

14:15-11:45

1 stop13h 30m

£538

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Showing 1-10 of 20 results
1
2

Best time to book a flight from Heathrow to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Heathrow 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 Heathrow Airport to Portland

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Portland. Price data was last updated on 8 August 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Portland, you should look to book at least 50 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Portland (average of £736). Flying from London Heathrow Airport to Portland in July is currently the most expensive (average of £1,048). 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 LHR to PDX?

Find hourly flight availability from Heathrow 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 August 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Portland is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 19% on airfare.

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

Use this chart to determine the cheapest time to fly return from Heathrow to Portland. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to Portland flight should consider departing on Saturday evenings 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 Heathrow Airport to Portland

Explore weekly flight availability from Heathrow 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 August 2025.

The most flights from LHR 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).

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

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

Reykjavik (KEF) – chosen by Cheapflights users on 43% of one-stop itineraries from London Heathrow Airport to Portland on Cheapflights.

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

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

Calgary (YYC) is the most affordable one-stop option, with an average return flight price of £465.

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

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

Flights via Vancouver (YVR) have the shortest average one-way travel time for one-stop routes: 12h 45m.

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

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

Flights via Salt Lake City (SLC) offer the fastest connection on this route, with an average stopover time of 1h 15m.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated 15 August 2025.
Read reviews from past customers who have flown with Finnair, Virgin Atlantic, andIcelandair from London Heathrow Airport to Portland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,321 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Comfort

7.5

Overall

7.6

Crew

8.1

Food

6.7

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
1,321 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Comfort

7.5

Overall

7.6

Crew

8.1

Food

6.7

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.
Virgin Atlantic
7.4
Good
657 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Comfort

7.5

Overall

7.6

Crew

8.1

Food

6.7

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.
Icelandair
7.0
Good
526 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Comfort

7.5

Overall

7.6

Crew

8.1

Food

6.7

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.
Lufthansa
6.8
Okay
7,321 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Comfort

7.5

Overall

7.6

Crew

8.1

Food

6.7

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.
British Airways
6.7
Okay
7,267 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Boarding

7.6

Entertainment

6.9

Comfort

7.5

Overall

7.6

Crew

8.1

Food

6.7

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.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 Heathrow?

    Portland (PDX), located 6.0 mi from the city center, is the airport you fly into when you book flights from London Heathrow to Portland. 11 airlines have flights to Portland from London Heathrow on a regular basis. Booking flights from London Heathrow to Portland should not be difficult; the airport handles an average of 7 inbound flights from London Heathrow per day.

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

    Currently priced at £438, Icelandair will fly you from London Heathrow Airport to Portland and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Air Canada - these airlines can fly you to your destination from £484 and £492, respectively. Users have found that Icelandair is 33% cheaper than the other options available to this destination.

  • What are the most reliable airlines from London Heathrow Airport to Portland?

    Before booking your flight to Portland from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (68%), Alaska Airlines (68%), Aer Lingus( 68%).

  • What are the cheapest flights from London Heathrow Airport to Portland?

    Looking at all options, your cheapest flight can be booked for £537. While the most popular route (London Heathrow - Portland) can be booked for £459 on average our data indicates £1,415 when flying from London Heathrow Airport to Portland.

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

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

  • How can I find direct flights from Heathrow to Portland?

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Portland?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Portland (average of £736). Flying from London Heathrow Airport to Portland in July is currently the most expensive (average of £1,048). 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.

See more FAQs

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Cannon Beach
Lincoln City

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Heathrow to Portland

Discover the top 10 airlines that operate flights from Heathrow to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 August 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£438Average£598FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
United AirlinesCheapest£484Average£614FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£492Average£567FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£496Average£596FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£500Average£615FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£502Average£655FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£502Average£680FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£547Average£791FlexibilityNo cancel feeOn-time75%
Search KLM flights
American AirlinesCheapest£551Average£684FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
IberiaCheapest£566Average£735FlexibilityNo cancel feeOn-time77%
Search Iberia flights

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 Heathrow to Portland?

Cheapflights helps you search for flights from Heathrow 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 Heathrow to Portland?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Portland for you. Better yet — we are completely free to use.

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

Yes, we can. To see specific flights from Heathrow to Portland with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Portland from Heathrow today and book when prices fit your budget.

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