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$250+ Cheap flights from Portland (PDX) to the United Kingdom

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LHR
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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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 August 16, 2025.

Round-trip from

$547
(British Airways)

One-way from

$250
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$769

Good round-trip deal

$644 or less

Good one-way deal

$463 or less
From Portland to United Kingdom
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One-way flight from Portland to United Kingdom
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Highest demand for flights based on searches. 22% potential increase in price ($238 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Portland to United Kingdom.
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Price to beat on a one-way flight from Portland to United Kingdom.
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Find flight deals from Portland to United Kingdom

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 August 16, 2025.

This British Airways deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:45 pmPDX - INV
1 stop17h 15mBritish Airways
Fri 11/1411:25 amINV - PDX
2 stops20h 01mBritish Airways
Deal found 8/14$547
This oojo deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/13:20 pmPDX - MAN
1 stop12h 20mIcelandair
Wed 10/812:40 pmMAN - PDX
1 stop13h 15mIcelandair
Deal found 8/16$554
This Mytrip deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/13:20 pmPDX - GLA
1 stop14h 05mIcelandair
Wed 10/152:20 pmGLA - PDX
1 stop11h 35mIcelandair
Deal found 8/15$560
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:00 amPDX - LHR
2 stops18h 35mUnited Airlines
Mon 9/2911:05 amLHR - PDX
2 stops41h 15mUnited Airlines
Deal found 8/14$563
This FlightHub deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/93:20 pmPDX - EDI
1 stop14h 00mIcelandair
Tue 10/212:15 pmEDI - PDX
1 stop11h 40mIcelandair
Deal found 8/14$564
This Flightnetwork deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/293:20 pmPDX - LHR
1 stop12h 35mIcelandair
Mon 10/69:25 pmLHR - PDX
1 stop28h 30mIcelandair
Deal found 8/15$564
This FlightHub deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/253:20 pmPDX - EDI
1 stop12h 00mIcelandair
Fri 10/3112:20 pmEDI - PDX
1 stop12h 40mIcelandair
Deal found 8/15$565
This Iberia deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/311:45 pmPDX - LHR
1 stop35h 15mIberia
Thu 9/1110:30 amLHR - PDX
1 stop18h 55mIberia
Deal found 8/14$565
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/102:45 pmPDX - LTN
1 stop15h 15mMultiple Airlines
Sun 11/166:00 amLTN - PDX
1 stop19h 00mMultiple Airlines
Deal found 8/14$566
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/112:45 pmPDX - LTN
1 stop15h 40mMultiple Airlines
Sun 11/166:00 amLTN - PDX
1 stop19h 00mMultiple Airlines
Deal found 8/13$567
This CrystalTravel deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2110:55 amPDX - LHR
1 stop14h 45mUnited Airlines
Thu 8/286:00 pmLHR - PDX
1 stop22h 53mUnited Airlines
Deal found 8/14$567
This Booking.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/153:20 pmPDX - LGW
1 stop15h 20mIcelandair
Mon 10/203:40 pmLGW - PDX
1 stop34h 15mIcelandair
Deal found 8/14$567

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated August 16, 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

PortlandInverness

PDX - INV

PDXINV

Portland

Sun 11/2

5:45 pm-7:00 pm

1 stop17h 15m

Inverness

Fri 11/14

11:25 am-11:26 pm

2 stops20h 01m

$547

PortlandManchester

PDX - MAN

PDXMAN

Portland

Wed 10/1

3:20 pm-11:40 am

1 stop12h 20m

Manchester

Wed 10/8

12:40 pm-5:55 pm

1 stop13h 15m

$554

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Wed 10/1

3:20 pm-1:25 pm

1 stop14h 05m

Glasgow Intl

Wed 10/15

2:20 pm-5:55 pm

1 stop11h 35m

$560

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 9/21

7:00 am-9:35 am

2 stops18h 35m

London Heathrow

Mon 9/29

11:05 am-8:20 pm

2 stops41h 15m

$563

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Thu 10/9

3:20 pm-1:20 pm

1 stop14h 00m

Edinburgh Turnhouse

Tue 10/21

2:15 pm-5:55 pm

1 stop11h 40m

$564

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Sat 10/25

3:20 pm-11:20 am

1 stop12h 00m

Edinburgh Turnhouse

Fri 10/31

12:20 pm-6:00 pm

1 stop12h 40m

$565

PortlandLondon

PDX - LTN

PDXLTN

Portland

Mon 11/10

2:45 pm-2:00 pm

1 stop15h 15m

London Luton

Sun 11/16

6:00 am-5:00 pm

1 stop19h 00m

$566

PortlandLondon

PDX - LTN

PDXLTN

Portland

Tue 11/11

2:45 pm-2:25 pm

1 stop15h 40m

London Luton

Sun 11/16

6:00 am-5:00 pm

1 stop19h 00m

$567

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 11/12

6:00 am-9:40 am

2 stops19h 40m

London Heathrow

Mon 11/17

11:05 am-8:29 pm

2 stops41h 24m

$567

PortlandLondon

PDX - LGW

PDXLGW

Portland

Wed 10/15

3:20 pm-2:40 pm

1 stop15h 20m

London Gatwick

Mon 10/20

3:40 pm-5:55 pm

1 stop34h 15m

$567

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

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 round-trip 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, November is the cheapest month in which you can book a flight from Portland to United Kingdom (average of $661). Flying from Portland to United Kingdom in June is currently the most expensive (average of $1,097). 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 August 16, 2025.

When flying from Portland to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Portland to United Kingdom

Explore weekly flight availability from Portland to United Kingdom. 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 August 16, 2025.

The most flights from PDX to GB0 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).

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 August 16, 2025.
Peruse reviews from past customers who have flown with Delta, American Airlines, and Icelandair from Portland to the United Kingdom to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,985 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,985 reviews
Delta
8.0
Very good
7,985 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,985 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Icelandair
7.0
Good
527 reviews
Delta
8.0
Very good
7,985 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Iberia
7.0
Good
2,884 reviews
Delta
8.0
Very good
7,985 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.7
Okay
7,267 reviews
Delta
8.0
Very good
7,985 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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?

    If you book a flight to United Kingdom from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PDX) is located 6.0 mi from the center of Portland.

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

    The cheapest airlines for a one-way flight from Portland to United Kingdom are WestJet ($250), Icelandair ($355), and British Airways ($408).

  • 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?

    Consider American Airlines (82%), Alaska Airlines (82%) or Aer Lingus (82%) when booking your flight. These represent the most reliable airlines when flying from Portland to United Kingdom.

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

    The cheapest flight price from Portland to United Kingdom is $288. On average you can expect to pay $2,041. The most popular route, (Portland - London Heathrow), can usually be booked for $495.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from Portland to United Kingdom (average of $661). Flying from Portland to United Kingdom in June is currently the most expensive (average of $1,097). 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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Alternative routes for Portland to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Portland to United Kingdom

Discover the top 10 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 2,558,603 searches. Data last updated August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$491Average$764FlexibilityNo cancel feeOn-time76%
KLMCheapest$561Average$950FlexibilityNo cancel feeOn-time75%
Virgin AtlanticCheapest$567Average$887FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$583Average$811FlexibilityNo cancel feeOn-time71%
IberiaCheapest$583Average$776FlexibilityNo cancel feeOn-time77%
DeltaCheapest$600Average$957FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$604Average$833FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$623Average$915FlexibilityNo cancel feeOn-time69%
FinnairCheapest$641Average$815FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$660Average$935FlexibilityNo cancel feeOn-time67%

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