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$283+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LHR
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
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Cheap 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 December 8, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:30 amPDX - LHR
1 stop15h 55mLufthansa
Sun 2/811:10 amLHR - PDX
2 stops21h 29mLufthansa
Deal found 12/8$662
This Delta deal was found by Cheapflights users on 12/8. 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.
Tue 12/306:50 amPDX - LHR
1 stop22h 00mDelta
Sun 2/86:30 amLHR - PDX
1 stop12h 55mDelta
Deal found 12/8$690
This FlightHub deal was found by Cheapflights users on 12/7. 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.
Tue 12/307:00 pmPDX - LHR
2 stops31h 10mMultiple Airlines
Sun 2/89:00 amLHR - PDX
2 stops21h 32mMultiple Airlines
Deal found 12/7$695
This Delta deal was found by Cheapflights users on 12/7. 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.
Mon 12/81:25 pmPDX - INV
1 stop15h 20mDelta
Sun 12/141:15 pmINV - PDX
1 stop30h 10mDelta
Deal found 12/7$711
This KLM deal was found by Cheapflights users on 12/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:05 amPDX - INV
2 stops21h 40mKLM
Sun 12/141:15 pmINV - PDX
1 stop30h 10mKLM
Deal found 12/7$715
This Cheapflightsfares deal was found by Cheapflights users on 12/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/910:50 amPDX - LHR
1 stop16h 25mLufthansa
Tue 1/137:30 amLHR - PDX
2 stops18h 40mLufthansa
Deal found 12/7$726
This Gotogate deal was found by Cheapflights users on 12/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/83:15 pmPDX - LHR
2 stops34h 55mAir Canada
Wed 12/243:00 pmLHR - PDX
2 stops31h 40mAir Canada
Deal found 12/8$736
This Delta deal was found by Cheapflights users on 12/7. 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.
Tue 12/910:05 amPDX - LHR
1 stop15h 55mDelta
Fri 1/166:30 amLHR - PDX
1 stop12h 55mDelta
Deal found 12/7$750
This Delta deal was found by Cheapflights users on 12/7. 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.
Sat 12/611:20 pmPDX - LHR
2 stops24h 30mDelta
Wed 1/146:30 amLHR - PDX
1 stop12h 55mDelta
Deal found 12/7$754
This oojo deal was found by Cheapflights users on 12/6. 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.
Thu 12/112:45 pmPDX - LHR
1 stop20h 45mIcelandair
Tue 12/168:35 pmLHR - PDX
1 stop28h 25mIcelandair
Deal found 12/6$755
This FlightHub deal was found by Cheapflights users on 12/6. 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 12/67:00 pmPDX - LHR
1 stop32h 50mMultiple Airlines
Tue 1/276:30 amLHR - PDX
2 stops19h 40mMultiple Airlines
Deal found 12/6$758
This Air Canada deal was found by Cheapflights users on 12/7. 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.
Sun 12/73:15 pmPDX - LHR
2 stops34h 55mAir Canada
Tue 1/132:30 pmLHR - PDX
2 stops36h 26mAir Canada
Deal found 12/7$760

Find 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 December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$475
(CrystalTravel)

One-way from

$283
(Cheapflightsfares)

Popular in

June

Cheapest in

October

Average price

$920

Good round-trip deal

$669 or less

Good one-way deal

$414 or less
Provider with most accurate pricing for Portland-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-London (LON) flights.
Search Deals
From Portland to United Kingdom
Search Deals
One-way flight from Portland to United Kingdom
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($244 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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

 
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 December 8, 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

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Sat 3/7

2:45 pm-9:55 am

1 stop11h 10m

Glasgow Intl

Fri 3/13

12:35 pm-6:00 pm

1 stop12h 25m

$491

PortlandInverness

PDX - INV

PDXINV

Portland

Sun 3/1

5:45 pm-11:50 am

1 stop34h 05m

Inverness

Wed 3/11

10:30 am-4:55 pm

1 stop13h 25m

$533

PortlandInverness

PDX - INV

PDXINV

Portland

Mon 4/6

1:05 pm-10:30 pm

1 stop25h 25m

Inverness

Thu 4/16

1:15 pm-11:10 am

1 stop29h 55m

$557

PortlandInverness

PDX - INV

PDXINV

Portland

Sun 3/1

7:25 am-11:10 am

2 stops19h 45m

Inverness

Wed 3/11

10:30 am-11:07 am

2 stops31h 37m

$562

PortlandInverness

PDX - INV

PDXINV

Portland

Fri 4/17

6:30 am-10:15 am

2 stops19h 45m

Inverness

Wed 4/29

3:40 pm-5:40 pm

1 stop34h 00m

$564

PortlandInverness

PDX - INV

PDXINV

Portland

Fri 4/17

1:05 pm-10:30 pm

1 stop25h 25m

Inverness

Wed 4/29

6:25 am-11:10 am

1 stop12h 45m

$577

PortlandManchester

PDX - MAN

PDXMAN

Portland

Wed 1/21

11:59 am-10:30 am

1 stop14h 31m

Manchester

Wed 1/28

1:30 pm-10:15 pm

1 stop16h 45m

$584

PortlandManchester

PDX - MAN

PDXMAN

Portland

Wed 2/11

5:45 pm-4:20 pm

1 stop14h 35m

Manchester

Fri 2/20

9:00 am-3:55 pm

1 stop14h 55m

$591

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 3/4

7:00 am-9:20 am

2 stops18h 20m

London Heathrow

Tue 3/10

10:20 am-10:23 pm

2 stops19h 03m

$601

PortlandLondon

PDX - LHR

PDXLHR

Portland

Mon 3/2

10:24 am-6:30 pm

2 stops24h 06m

London Heathrow

Sun 3/8

10:20 am-10:23 pm

2 stops19h 03m

$601

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

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, February is the cheapest month in which you can book a flight from Portland to United Kingdom (average of $495). Flying from Portland to United Kingdom in June is currently the most expensive (average of $832). 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 December 8, 2025.

One of the essential ways to save on airfare from Portland to United Kingdom is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 21% on airfare.

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

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

Travelers seeking maximum savings on their Portland to United Kingdom flight should consider departing on Sunday at noon when fares are most often at their lowest. Saturday at noon 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 December 8, 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
7.9
Good
8,010 reviews

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,010 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,044 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Icelandair
7.0
Good
586 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Iberia
7.0
Good
3,042 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,564 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 $491, Icelandair can have you in United Kingdom from Portland in 11h 10m. 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 Icelandair ($206), WestJet ($287), and Virgin Atlantic ($378).

  • 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 (76%), Alaska Airlines (76%) or Finnair (76%) 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 $293. On average you can expect to pay $1,275. The most popular route, (Portland - London Heathrow), can usually be booked for $477.

  • 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, February is the cheapest month in which you can book a flight from Portland to United Kingdom (average of $495). Flying from Portland to United Kingdom in June is currently the most expensive (average of $832). 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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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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$451Average$1,046FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$495Average$817FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$496Average$764FlexibilityNo cancel feeOn-time76%
DeltaCheapest$552Average$997FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$558Average$863FlexibilityNo cancel feeOn-time72%
IberiaCheapest$577Average$795FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$583Average$833FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$600Average$1,442FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$619Average$937FlexibilityNo cancel feeOn-time69%
FinnairCheapest$641Average$942FlexibilityNo cancel feeOn-time76%

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