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$210+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LHR
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$506
(Delta)

One-way from

$210
(Trip.com)

Popular in

June

Cheapest in

October

Average price

$727

Good round-trip deal

$673 or less

Good one-way deal

$490 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 ($239 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 September 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 September 17, 2025.

This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/21:25 pmPDX - INV
1 stop15h 20mDelta
Fri 11/141:15 pmINV - PDX
2 stops29h 23mDelta
Deal found 9/15$506
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/223:20 pmPDX - EDI
2 stops23h 50mMultiple Airlines
Wed 10/297:25 amEDI - PDX
2 stops17h 35mMultiple Airlines
Deal found 9/14$527
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:45 pmPDX - INV
1 stop17h 15mMultiple Airlines
Fri 11/1411:25 amINV - PDX
2 stops19h 59mMultiple Airlines
Deal found 9/16$530
This British Airways deal was found by Cheapflights users on 9/17. 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 9/17$535
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/223:20 pmPDX - GLA
1 stop14h 05mIcelandair
Wed 10/2912:35 pmGLA - PDX
1 stop12h 25mIcelandair
Deal found 9/15$540
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/225:00 amPDX - LHR
1 stop23h 20mUnited Airlines
Wed 10/296:00 pmLHR - PDX
2 stops35h 10mUnited Airlines
Deal found 9/15$545
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:15 amPDX - LTN
3 stops23h 20mMultiple Airlines
Thu 10/239:10 pmLTN - PDX
2 stops25h 36mMultiple Airlines
Deal found 9/16$546
This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:00 pmPDX - LHR
1 stop33h 50mAir Canada
Thu 11/202:30 pmLHR - PDX
1 stop32h 15mAir Canada
Deal found 9/15$546
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:15 amPDX - STN
3 stops24h 05mMultiple Airlines
Thu 10/2310:55 pmSTN - PDX
2 stops23h 51mMultiple Airlines
Deal found 9/16$546
This British Airways deal was found by Cheapflights users on 9/17. 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.
Wed 10/157:25 pmPDX - LHR
Nonstop9h 35mBritish Airways
Thu 10/233:40 pmLHR - PDX
Nonstop9h 55mBritish Airways
Deal found 9/17$547
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/67:25 pmPDX - LHR
Nonstop9h 35mAmerican Airlines
Wed 10/223:40 pmLHR - PDX
Nonstop9h 55mAmerican Airlines
Deal found 9/15$548
This Icelandair deal was found by Cheapflights users on 9/16. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/172:45 pmPDX - LGW
1 stop12h 10mIcelandair
Mon 12/111:55 amLGW - PDX
1 stop13h 05mIcelandair
Deal found 9/16$548

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 September 17, 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

1:25 pm-12:45 pm

1 stop15h 20m

Inverness

Fri 11/14

1:15 pm-10:38 am

2 stops29h 23m

$506

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

$535

PortlandInverness

PDX - INV

PDXINV

Portland

Sun 11/2

3:29 pm-7:00 pm

2 stops19h 31m

Inverness

Fri 11/14

11:25 am-11:24 pm

2 stops19h 59m

$535

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Wed 10/22

3:20 pm-1:25 pm

1 stop14h 05m

Glasgow Intl

Wed 10/29

12:35 pm-6:00 pm

1 stop12h 25m

$540

PortlandLondon

PDX - LHR

PDXLHR

Portland

Tue 10/14

3:50 pm-11:10 am

2 stops35h 20m

London Heathrow

Tue 11/4

2:30 pm-2:45 pm

1 stop32h 15m

$545

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 10/8

1:30 pm-2:15 pm

1 stop16h 45m

London Heathrow

Wed 11/19

6:30 am-11:25 am

1 stop12h 55m

$545

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 10/6

3:50 pm-11:10 am

2 stops35h 20m

London Heathrow

Wed 10/22

2:10 pm-9:20 am

1 stop27h 10m

$545

PortlandLondon

PDX - LTN

PDXLTN

Portland

Fri 10/17

6:15 am-1:35 pm

3 stops23h 20m

London Luton

Thu 10/23

9:10 pm-2:46 pm

2 stops25h 36m

$546

PortlandLondon

PDX - STN

PDXSTN

Portland

Fri 10/17

6:15 am-2:20 pm

3 stops24h 05m

London Stansted

Thu 10/23

10:55 pm-2:46 pm

2 stops23h 51m

$546

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 10/1

7:30 am-2:10 pm

1 stop22h 40m

London Heathrow

Wed 10/8

2:10 pm-6:46 pm

1 stop12h 36m

$551

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 September 17, 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 September 17, 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 September 17, 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
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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
545 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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
2,925 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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
7,367 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

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.

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

    For as low as $540, Delta can have you in United Kingdom from Portland in 14h 05m. The distance from Portland to United Kingdom is about 4560 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 ($213), Scandinavian Airlines ($359), and Icelandair ($365).

  • 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 (77%), Alaska Airlines (77%) or Aer Lingus (77%) 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 $420. On average you can expect to pay $1,194. The most popular route, (Portland - London Heathrow), can usually be booked for $478.

  • 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.

See more FAQs

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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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Boise to Leonardo da Vinci/Fiumicino flights
Portland to Vienna flights
Portland to Bruxelles-National flights
Portland to Stansted flights
Boise to Frankfurt flights
Boise to Heathrow flights
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Portland to Manchester flights
Portland to Prague flights
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Boise to Madrid flights
Portland to Málaga flights
Portland to Copenhagen flights
Portland to Basel flights
Portland to Arlanda flights
Portland to Glasgow Intl flights
Boise to Keflavik Intl flights
Boise to Lisbon flights
Portland to Porto flights
Boise to Gatwick flights
Portland to Naples flights
Boise to Charles de Gaulle flights
Portland to Nice flights
Boise to Copenhagen flights
Portland to Bologna flights
Portland to Otopeni Intl flights

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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$451Average$950FlexibilityNo cancel feeOn-time75%
IcelandairCheapest$490Average$745FlexibilityNo cancel feeOn-time76%
DeltaCheapest$554Average$977FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$567Average$891FlexibilityNo cancel feeOn-time72%
IberiaCheapest$578Average$778FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$583Average$817FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$595Average$830FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$623Average$911FlexibilityNo cancel feeOn-time69%
FinnairCheapest$641Average$818FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$704Average$967FlexibilityNo cancel feeOn-time67%

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