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Cheap flights from Portland to the United Kingdom from £205

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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LHR
18 Dec — 25 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Portland to United Kingdom

Enter your travel dates to find the best prices.

Cheapest flights from Portland to United Kingdom
Explore the most affordable flight options available from Portland to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 November 2025.

Wed 3/1210:05PDX - LHR
1 stop15h 55mVirgin Atlantic
Tue 9/1217:50LHR - PDX
1 stop25h 35mVirgin Atlantic
Deal found 16/11£441
Sat 29/1119:00PDX - LHR
1 stop32h 50mUnited Airlines
Thu 11/1214:30LHR - PDX
1 stop26h 45mUnited Airlines
Deal found 17/11£442
Tue 2/1215:15PDX - LHR
1 stop12h 35mUnited Airlines
Wed 10/1206:35LHR - PDX
2 stops35h 03mUnited Airlines
Deal found 17/11£444
Wed 3/1217:45PDX - LHR
Nonstop9h 35mBritish Airways
Tue 9/1211:55LHR - PDX
1 stop17h 29mBritish Airways
Deal found 16/11£445
Wed 3/1207:05PDX - LHR
1 stop15h 15mDelta
Tue 9/1211:30LHR - PDX
2 stops18h 40mDelta
Deal found 16/11£448
Wed 3/1217:45PDX - LHR
Nonstop9h 35mAmerican Airlines
Wed 10/1209:55LHR - PDX
1 stop18h 22mAmerican Airlines
Deal found 17/11£450
Mon 1/1214:45PDX - LHR
2 stops21h 05mMultiple Airlines
Fri 12/1207:50LHR - PDX
2 stops17h 10mMultiple Airlines
Deal found 15/11£453
Wed 3/1213:45PDX - LHR
1 stop12h 15mDelta
Wed 10/1210:45LHR - PDX
1 stop15h 29mDelta
Deal found 15/11£454
Tue 2/1214:45PDX - LGW
1 stop12h 10mIcelandair
Mon 8/1211:55LGW - PDX
1 stop13h 05mIcelandair
Deal found 15/11£454
Tue 2/1209:50PDX - LHR
2 stops16h 20mLufthansa
Wed 10/1206:35LHR - PDX
2 stops22h 40mLufthansa
Deal found 17/11£455
Tue 25/1123:59PDX - LHR
2 stops23h 11mUnited Airlines
Wed 3/1215:20LHR - PDX
2 stops17h 17mUnited Airlines
Deal found 17/11£457
Tue 30/1206:15PDX - LHR
1 stop16h 50mDelta
Fri 30/106:30LHR - PDX
1 stop12h 55mDelta
Deal found 18/11£463

Cheap flight deals from Portland to United Kingdom

Keep the following information in mind while searching for Portland to United Kingdom flight deals. Data was last updated 18 November 2025.

Round-trip from

£419

One-way from

£205

Popular in

June

Cheapest in

October

Average price

£501

Good round-trip deal

£1,388 or less

Good one-way deal

£3,235 or less
British Airways
  • British Airways
  • 14/1-23/1
  • 2 total stops
  • 29h 50m total
  • Portland to United Kingdom
Search Deals
15/1
  • 15/1
  • 3 total stops
  • 34h 01m total
  • Portland to United Kingdom
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£137 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Portland to United Kingdom.
Search Deals
Price to beat on a one-way flight from Portland to United Kingdom.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portland to United Kingdom 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 18 November 2025.
Use the filters below to find and compare flights from Portland to the United Kingdom that are best for you.

Fly from

Portland

Fly to

United Kingdom

Route

Depart

Return

Price

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 3/12

13:45-10:00

1 stop12h 15m

London Heathrow

Wed 10/12

06:30-11:25

1 stop12h 55m

£441

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 16/2

17:45-11:20

Nonstop9h 35m

London Heathrow

Wed 25/2

13:45-15:55

Nonstop10h 10m

£447

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 23/2

17:45-11:20

Nonstop9h 35m

London Heathrow

Wed 4/3

13:45-15:55

Nonstop10h 10m

£447

PortlandLondon

PDX - LHR

PDXLHR

Portland

Tue 13/1

07:00-06:20

1 stop15h 20m

London Heathrow

Fri 30/1

06:30-11:25

1 stop12h 55m

£447

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 14/1

13:30-10:30

1 stop13h 00m

London Heathrow

Fri 30/1

06:30-11:25

1 stop12h 55m

£447

PortlandLondon

PDX - LHR

PDXLHR

Portland

Tue 13/1

11:10-10:30

1 stop15h 20m

London Heathrow

Wed 28/1

06:30-11:25

1 stop12h 55m

£447

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 3/12

10:05-10:00

1 stop15h 55m

London Heathrow

Wed 10/12

06:20-17:43

2 stops19h 23m

£448

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 3/12

17:45-11:20

Nonstop9h 35m

London Heathrow

Wed 10/12

09:55-20:17

1 stop18h 22m

£450

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Fri 20/2

17:45-15:10

1 stop13h 25m

Glasgow Intl

Fri 27/2

08:15-15:55

1 stop15h 40m

£451

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 15/4

10:00-21:40

2 stops27h 40m

London Heathrow

Wed 22/4

07:05-21:35

2 stops22h 30m

£455

Flights are sorted by cheapest return flights first.

Deals found on 17/11

Showing 1-10 of 60 results
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Best time to book a flight from Portland to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Portland 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 Portland to the United Kingdom

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

Currently, October is the cheapest month in which you can book a flight from Portland to United Kingdom (average of £399). Flying from Portland to United Kingdom in June is currently the most expensive (average of £615). 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 PDX to GB?

Find hourly flight availability from Portland to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 November 2025.

It’s typically best to fly out from Portland to United Kingdom in the morning. Doing so could potentially save you 27% on the flight price compared to flying at midday, which is usually more expensive.

What is the cheapest day to fly from Portland to United Kingdom?

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

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

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated 18 November 2025.
Get a feel of what it's like to fly with Virgin Atlantic, Icelandair, andIberia from Portland to the United Kingdom by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
673 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Food

6.9

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
673 reviews
Virgin Atlantic
7.5
Good
673 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Food

6.9

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Icelandair
7.0
Good
580 reviews
Virgin Atlantic
7.5
Good
673 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Food

6.9

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Iberia
7.0
Good
3,020 reviews
Virgin Atlantic
7.5
Good
673 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Food

6.9

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,528 reviews
Virgin Atlantic
7.5
Good
673 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Food

6.9

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Related info for your journey

Find useful and relevant information for your journey from Portland to United Kingdom. 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 from for flights from Portland to United Kingdom?

    Portland (PDX), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Portland to United Kingdom.

  • How long is the flight from Portland to United Kingdom?

    Departing from Portland to United Kingdom will take you 9h 35m. The distance between Portland and United Kingdom is about 4896 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Portland to United Kingdom one-way?

    The cheapet airlines for a one-way flight from Portland to United Kingdom are Icelandair (£251), Scandinavian Airlines (£261), and SWISS (£321).

  • What are the most popular routes from Portland to United Kingdom?

    The most popular flight routes from Portland to United Kingdom are Portland - London Heathrow, Portland - London Gatwick and Portland - London City.

  • What are the most reliable airlines from Portland to United Kingdom?

    No one likes to see their flight delayed. When booking a flight from Portland to United Kingdom consider choosing American Airlines (77%), Alaska Airlines (77%) or Finnair (77%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portland to United Kingdom?

    Looking for the cheapest flight from Portland to United Kingdom? While on average our users pay £2,320, our data indicates the cheapest price to be £1,387. The most popular route (Portland - London Heathrow), is priced around £361.

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

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

  • How can I find direct flights from Portland to United Kingdom?

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

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

    Yes. Cheapflights offers flight deals from Portland to United Kingdom 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 Portland to United Kingdom?

    Currently, October is the cheapest month in which you can book a flight from Portland to United Kingdom (average of £399). Flying from Portland to United Kingdom in June is currently the most expensive (average of £615). 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

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Top 4 airlines flying from Portland to United Kingdom

Discover the top 4 airlines that operate flights from Portland to United Kingdom. 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 18 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£391Average£549FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£448Average£456FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£463Average£528FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Virgin AtlanticCheapest£501Average£633FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

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