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$211+ 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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LHR
Feb 23 — Mar 21
Mon 2/23
Mon 3/2
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 January 24, 2026.

This oojo deal was found by Cheapflights users on 1/22. 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.
Mon 4/612:04 pm
PDX
-
INV
2 stops18h 56m
British Airways
Tue 4/2111:20 am
INV
-
PDX
1 stop14h 20m
British Airways
Deal found 1/22$446
This American Airlines deal was found by Cheapflights users on 1/22. 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.
Tue 3/3111:46 am
PDX
-
INV
2 stops18h 39m
American Airlines
Thu 4/910:25 am
INV
-
PDX
2 stops21h 16m
American Airlines
Deal found 1/22$464
This British Airways deal was found by Cheapflights users on 1/21. 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 3/45:45 pm
PDX
-
INV
1 stop17h 15m
British Airways
Sun 3/88:05 pm
INV
-
PDX
1 stop27h 50m
British Airways
Deal found 1/21$476
This oojo deal was found by Cheapflights users on 1/22. 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.
Tue 3/317:30 pm
PDX
-
INV
1 stop18h 05m
British Airways
Thu 4/97:20 am
INV
-
PDX
1 stop18h 20m
British Airways
Deal found 1/22$477
This oojo deal was found by Cheapflights users on 1/22. 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.
Mon 3/96:45 pm
PDX
-
INV
1 stop31h 55m
British Airways
Mon 3/167:45 pm
INV
-
PDX
2 stops35h 35m
British Airways
Deal found 1/22$479
This oojo deal was found by Cheapflights users on 1/24. 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.
Mon 4/612:04 pm
PDX
-
INV
2 stops25h 31m
British Airways
Thu 4/167:20 am
INV
-
PDX
1 stop18h 20m
British Airways
Deal found 1/24$506
This oojo deal was found by Cheapflights users on 1/22. 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 4/23:30 pm
PDX
-
GLA
1 stop13h 55m
Icelandair
Fri 4/102:20 pm
GLA
-
PDX
1 stop11h 40m
Icelandair
Deal found 1/22$509
This KLM deal was found by Cheapflights users on 1/23. 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.
Tue 3/311:05 pm
PDX
-
INV
1 stop25h 25m
KLM
Thu 4/96:25 am
INV
-
PDX
1 stop12h 45m
KLM
Deal found 1/23$510
This oojo deal was found by Cheapflights users on 1/21. 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 4/93:30 pm
PDX
-
EDI
1 stop13h 50m
Icelandair
Fri 4/172:15 pm
EDI
-
PDX
1 stop11h 45m
Icelandair
Deal found 1/21$511
This oojo deal was found by Cheapflights users on 1/21. 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 10/13:30 pm
PDX
-
EDI
1 stop13h 50m
Icelandair
Sun 10/112:15 pm
EDI
-
PDX
1 stop11h 40m
Icelandair
Deal found 1/21$517
This oojo deal was found by Cheapflights users on 1/23. 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.
Tue 4/73:30 pm
PDX
-
MAN
1 stop12h 10m
Icelandair
Fri 4/171:05 pm
MAN
-
PDX
1 stop12h 55m
Icelandair
Deal found 1/23$520
This oojo deal was found by Cheapflights users on 1/22. 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 4/233:30 pm
PDX
-
EDI
1 stop13h 50m
Icelandair
Sun 5/32:15 pm
EDI
-
PDX
1 stop11h 45m
Icelandair
Deal found 1/22$520

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 January 24, 2026.

Most accurate provider

oojo
3 stars

Most trusted provider

oojo
3 stars

Round-trip from

$476
(oojo)

One-way from

$211
(oojo)

Popular in

June

Cheapest in

October

Average price

$720

Good round-trip deal

$650 or less

Good one-way deal

$359 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. 21% potential increase in price ($217 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 24, 2026.
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

Mon 4/6

12:04 pm-3:00 pm

2 stops18h 56m

Inverness

Tue 4/21

11:20 am-5:40 pm

1 stop14h 20m

$446

PortlandInverness

PDX - INV

PDXINV

Portland

Mon 4/6

6:40 am-10:20 am

2 stops19h 40m

Inverness

Thu 4/16

10:25 am-10:49 pm

2 stops20h 24m

$464

PortlandInverness

PDX - INV

PDXINV

Portland

Mon 4/6

12:04 pm-3:00 pm

2 stops18h 56m

Inverness

Thu 4/16

7:20 am-5:40 pm

1 stop18h 20m

$464

PortlandInverness

PDX - INV

PDXINV

Portland

Tue 3/31

11:46 am-2:25 pm

2 stops18h 39m

Inverness

Thu 4/9

10:25 am-11:41 pm

2 stops21h 16m

$464

PortlandInverness

PDX - INV

PDXINV

Portland

Wed 3/4

5:45 pm-7:00 pm

1 stop17h 15m

Inverness

Sun 3/8

8:05 pm-4:55 pm

1 stop27h 50m

$476

PortlandInverness

PDX - INV

PDXINV

Portland

Tue 3/31

7:30 pm-9:35 pm

1 stop18h 05m

Inverness

Thu 4/9

7:20 am-5:40 pm

1 stop18h 20m

$477

PortlandInverness

PDX - INV

PDXINV

Portland

Mon 3/9

6:45 pm-9:40 am

1 stop31h 55m

Inverness

Mon 3/16

7:45 pm-12:20 am

2 stops35h 35m

$479

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Tue 4/14

3:30 pm-1:25 pm

1 stop13h 55m

Glasgow Intl

Wed 4/22

2:20 pm-6:00 pm

1 stop11h 40m

$509

PortlandEdinburgh

PDX - EDI

PDXEDI

Portland

Thu 4/9

3:30 pm-1:20 pm

1 stop13h 50m

Edinburgh Turnhouse

Fri 4/17

2:15 pm-6:00 pm

1 stop11h 45m

$512

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 4/20

3:30 pm-1:25 pm

1 stop13h 55m

Glasgow Intl

Mon 5/4

2:20 pm-6:00 pm

1 stop11h 40m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

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, March is the cheapest month in which you can book a flight from Portland to United Kingdom (average of $491). Flying from Portland to United Kingdom in June is currently the most expensive (average of $822). 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 January 24, 2026.

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.

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 January 24, 2026.
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
8,113 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

Food

7.2

Crew

8.5

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
8,113 reviews
Delta
7.9
Good
8,113 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

Food

7.2

Crew

8.5

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
11,193 reviews
Delta
7.9
Good
8,113 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

Food

7.2

Crew

8.5

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
7.1
Good
602 reviews
Delta
7.9
Good
8,113 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

Food

7.2

Crew

8.5

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
3,098 reviews
Delta
7.9
Good
8,113 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

Food

7.2

Crew

8.5

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
7,696 reviews
Delta
7.9
Good
8,113 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

Food

7.2

Crew

8.5

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 $509, British Airways can have you in United Kingdom from Portland in 13h 55m. 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 ($192), WestJet ($220), and British Airways ($280).

  • 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 $259. On average you can expect to pay $1,383. The most popular route, (Portland - London Heathrow), can usually be booked for $511.

  • 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, March is the cheapest month in which you can book a flight from Portland to United Kingdom (average of $491). Flying from Portland to United Kingdom in June is currently the most expensive (average of $822). 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 London City flights
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Portland to Valencia flights
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Portland to Helsinki 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 January 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$451Average$1,003FlexibilityNo cancel feeOn-time75%
IcelandairCheapest$489Average$741FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$495Average$829FlexibilityNo cancel feeOn-time70%
DeltaCheapest$552Average$983FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$558Average$838FlexibilityNo cancel feeOn-time72%
IberiaCheapest$575Average$803FlexibilityNo cancel feeOn-time77%
Alaska AirlinesCheapest$582Average$1,255FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$583Average$834FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$619Average$929FlexibilityNo cancel feeOn-time69%
FinnairCheapest$641Average$978FlexibilityNo cancel feeOn-time76%

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