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$246+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LHR
feb. 4 — feb. 111
mar. 2/4
mar. 2/11
1 adult, Economy
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Cheap flight deals from Portland to United Kingdom

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to United Kingdom (GB0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$541
(oojo)

One-way from

$254
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$694

Good round-trip deal

$711 or less

Good one-way deal

$528 or less
Provider with most accurate pricing for Portland-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Portland-London (LON) flights.
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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 ($264 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 enero 30, 2025.

This oojo deal was found by Cheapflights users on 1/29. 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.
mié. 2/265:31 amPDX - INV
2 stops21h 34mBritish Airways
vie. 3/711:05 amINV - PDX
1 stop13h 30mBritish Airways
Deal found 1/29$541
This FlightHub deal was found by Cheapflights users on 1/30. 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.
dom. 9/213:20 pmPDX - GLA
1 stop14h 05mIcelandair
vie. 10/172:20 pmGLA - PDX
1 stop11h 35mIcelandair
Deal found 1/30$621
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
dom. 2/1610:16 amPDX - LGW
1 stop16h 19mMultiple Airlines
dom. 2/2312:00 pmLGW - PDX
1 stop28h 40mMultiple Airlines
Deal found 1/29$632
This oojo deal was found by Cheapflights users on 1/29. 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.
mié. 2/266:30 pmPDX - GLA
1 stop13h 20mBritish Airways
vie. 3/711:40 amGLA - PDX
1 stop12h 55mBritish Airways
Deal found 1/29$633
This Expedia deal was found by Cheapflights users on 1/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/2510:10 amPDX - LHR
1 stop16h 00mMultiple Airlines
mar. 3/46:30 amLHR - PDX
2 stops16h 14mMultiple Airlines
Deal found 1/29$635
This Mytrip deal was found by Cheapflights users on 1/30. 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.
lun. 9/223:20 pmPDX - LHR
1 stop12h 35mIcelandair
jue. 10/29:25 pmLHR - PDX
1 stop28h 30mIcelandair
Deal found 1/30$636
This Expedia deal was found by Cheapflights users on 1/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/251:36 pmPDX - LHR
1 stop13h 34mVirgin Atlantic
mar. 3/46:30 amLHR - PDX
1 stop12h 55mVirgin Atlantic
Deal found 1/29$648
This Gotogate deal was found by Cheapflights users on 1/30. 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.
dom. 2/236:00 amPDX - LHR
2 stops17h 10mAir Canada
mar. 3/111:25 pmLHR - PDX
2 stops27h 09mAir Canada
Deal found 1/30$651
This American Airlines deal was found by Cheapflights users on 1/29. 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.
vie. 9/126:32 amPDX - INV
2 stops19h 43mAmerican Airlines
mié. 9/2410:30 amINV - PDX
1 stop15h 05mAmerican Airlines
Deal found 1/29$660
This oojo deal was found by Cheapflights users on 1/30. 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.
lun. 9/223:20 pmPDX - LGW
1 stop15h 20mIcelandair
lun. 9/293:40 pmLGW - PDX
1 stop34h 15mIcelandair
Deal found 1/30$661
This Expedia deal was found by Cheapflights users on 1/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/1110:10 amPDX - LHR
1 stop17h 00mLufthansa
mié. 3/196:30 amLHR - PDX
2 stops18h 54mLufthansa
Deal found 1/30$662
This Cheapflightsfares deal was found by Cheapflights users on 1/30. 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.
lun. 9/228:01 amPDX - LHR
1 stop14h 24mBritish Airways
vie. 10/33:40 pmLHR - PDX
Nonstop9h 55mBritish Airways
Deal found 1/30$667

Find flights from Portland to United Kingdom within your budget

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 enero 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandInverness

PDX - INV

PDXINV

Portland

mié. 2/26

5:31 am-11:05 am

2 stops21h 34m

Inverness

vie. 3/7

11:05 am-4:35 pm

1 stop13h 30m

$541

PortlandLondon

PDX - LGW

PDXLGW

Portland

dom. 2/16

10:16 am-10:35 am

1 stop16h 19m

London Gatwick

dom. 2/23

12:00 pm-8:40 am

1 stop28h 40m

$632

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

mié. 2/26

6:30 pm-3:50 pm

1 stop13h 20m

Glasgow Intl

vie. 3/7

11:40 am-4:35 pm

1 stop12h 55m

$633

PortlandLondon

PDX - LHR

PDXLHR

Portland

sáb. 2/22

7:05 pm-7:10 am

2 stops28h 05m

London Heathrow

lun. 3/3

6:30 am-2:44 pm

2 stops16h 14m

$634

PortlandLondon

PDX - LHR

PDXLHR

Portland

dom. 3/9

7:30 pm-12:10 pm

Nonstop9h 40m

London Heathrow

dom. 3/16

12:10 pm-11:00 pm

1 stop17h 50m

$637

PortlandLondon

PDX - LHR

PDXLHR

Portland

dom. 3/9

7:30 pm-12:10 pm

Nonstop9h 40m

London Heathrow

mar. 3/18

2:20 pm-5:35 pm

Nonstop10h 15m

$639

PortlandLondon

PDX - LHR

PDXLHR

Portland

dom. 3/9

1:29 pm-7:25 am

1 stop34h 56m

London Heathrow

lun. 3/17

1:00 pm-2:44 pm

1 stop32h 44m

$647

PortlandLondon

PDX - LHR

PDXLHR

Portland

mar. 2/25

1:36 pm-11:10 am

1 stop13h 34m

London Heathrow

mar. 3/4

6:30 am-11:25 am

1 stop12h 55m

$648

PortlandLondon

PDX - LHR

PDXLHR

Portland

dom. 2/23

6:00 am-7:10 am

2 stops17h 10m

London Heathrow

mar. 3/11

1:00 pm-10:09 pm

1 stop16h 09m

$654

PortlandLondon

PDX - LHR

PDXLHR

Portland

vie. 4/18

1:38 pm-1:30 pm

1 stop15h 52m

London Heathrow

dom. 4/27

6:30 am-11:20 am

1 stop12h 50m

$659

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

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.

Travel insights for flights from Portland to United Kingdom

Get recent, data-driven insights about flights from Portland to United Kingdom including ideal travel times, pricing trends, and more.

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 $1,138). 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 enero 30, 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.

Rainfall in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in United Kingdom ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit United Kingdom when rainfall is around 1.6 in.

Temperature in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average temperature totals by month.

If weather is an important factor for your trip to United Kingdom, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 enero 30, 2025.
Get a feel of what it's like to fly with Delta, Alaska Airlines and KLM from Portland to 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.
Delta
8.0
Very good
8,450 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,450 reviews
Delta
8.0
Very good
8,450 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Alaska Airlines
8.0
Very good
9,686 reviews
Delta
8.0
Very good
8,450 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,335 reviews
Delta
8.0
Very good
8,450 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very good
8,450 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,584 reviews
Delta
8.0
Very good
8,450 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 ($393), British Airways ($394), and Iberia ($402).

  • 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 British Airways (88%), American Airlines (76%) or Alaska Airlines (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 $410. On average you can expect to pay $1,686. The most popular route, (Portland - London Heathrow), can usually be booked for $628.

  • 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 $1,138). 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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Portland to Gatwick flights
Portland to Charles de Gaulle flights
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Portland to Bruxelles-National flights
Portland to Istanbul flights
Portland to Zurich flights
Portland to Edinburgh flights
Portland to Oslo Gardermoen flights
Boise to Heathrow flights
Boise to Charles de Gaulle flights
Portland to Munich flights
Portland to Linate flights
Boise to Leonardo da Vinci/Fiumicino flights
Boise to Gatwick flights
Redmond to Heathrow flights
Portland to Arlanda flights
Portland to Florence flights
Portland to Glasgow Intl flights
Boise to Lisbon flights
Portland to Berlin flights
Portland to Sabiha Gokcen flights
Portland to Copenhagen flights
Portland to Málaga flights
Portland to Otopeni Intl flights
Boise to Athens flights
Boise to Frankfurt flights
Boise to Istanbul flights
Medford to Heathrow flights
Boise to Madrid flights
Portland to Zagreb flights
Portland to Manchester flights
Boise to Vicenza flights
Boise to Barcelona-El Prat flights
Medford to Dublin flights
Portland to Vienna flights
Boise to London City flights
Portland to Prague 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 enero 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$495Average$837FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$512Average$1,056FlexibilityNo cancel feeOn-time67%
KLMCheapest$574Average$956FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$592Average$866FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$593Average$856FlexibilityNo cancel feeOn-time71%
FinnairCheapest$597Average$788FlexibilityNo cancel feeOn-time76%
IberiaCheapest$599Average$815FlexibilityNo cancel feeOn-time77%
DeltaCheapest$602Average$919FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$606Average$872FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$639Average$980FlexibilityNo cancel feeOn-time69%
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