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$262+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LHR
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
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 March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$512
(oojo)

One-way from

$262
(oojo)

Popular in

June

Cheapest in

November

Average price

$770

Good round-trip deal

$729 or less

Good one-way deal

$518 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
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One-way flight from Portland to United Kingdom
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($258 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 3, 2025.

This oojo deal was found by Cheapflights users on 3/2. 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 4/17:35 amPDX - INV
2 stops23h 20mBritish Airways
Tue 4/83:45 pmINV - PDX
1 stop33h 50mBritish Airways
Deal found 3/2$512
This Mytrip deal was found by Cheapflights users on 3/2. 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.
Tue 4/16:00 amPDX - GLA
3 stops25h 30mMultiple Airlines
Mon 4/79:50 pmGLA - PDX
3 stops32h 20mMultiple Airlines
Deal found 3/2$597
This Expedia deal was found by Cheapflights users on 3/2. 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.
Sun 4/67:25 pmPDX - LHR
Nonstop9h 35mIberia
Tue 4/223:40 pmLHR - PDX
Nonstop9h 55mIberia
Deal found 3/2$603
This oojo deal was found by Cheapflights users on 3/3. 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.
Sun 4/2011:59 pmPDX - LHR
1 stop25h 01mBritish Airways
Wed 4/303:40 pmLHR - PDX
Nonstop9h 55mBritish Airways
Deal found 3/3$606
This oojo deal was found by Cheapflights users on 3/2. 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 4/17:25 pmPDX - GLA
1 stop15h 25mBritish Airways
Tue 4/88:25 pmGLA - PDX
1 stop29h 10mBritish Airways
Deal found 3/2$609
This oojo deal was found by Cheapflights users on 3/3. 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 9/223:20 pmPDX - LGW
1 stop15h 15mIcelandair
Mon 10/63:40 pmLGW - PDX
1 stop34h 15mIcelandair
Deal found 3/3$610
This Mytrip deal was found by Cheapflights users on 3/3. 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.
Tue 4/16:13 pmPDX - LGW
2 stops31h 47mMultiple Airlines
Thu 4/2410:00 amLGW - PDX
2 stops35h 37mMultiple Airlines
Deal found 3/3$611
This oojo deal was found by Cheapflights users on 3/2. 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 4/17:25 pmPDX - ABZ
1 stop12h 40mBritish Airways
Tue 4/89:00 pmABZ - PDX
1 stop28h 35mBritish Airways
Deal found 3/2$612
This oojo deal was found by Cheapflights users on 3/2. 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 9/223:20 pmPDX - LHR
1 stop12h 35mIcelandair
Tue 10/71:05 pmLHR - PDX
1 stop12h 50mIcelandair
Deal found 3/2$612
This oojo deal was found by Cheapflights users on 3/3. 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 4/1411:59 pmPDX - MAN
2 stops25h 46mBritish Airways
Mon 4/214:55 pmMAN - PDX
1 stop32h 40mBritish Airways
Deal found 3/3$614
This American Airlines deal was found by Cheapflights users on 3/2. 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 4/111:55 amPDX - ABZ
2 stops20h 10mMultiple Airlines
Tue 4/89:00 pmABZ - PDX
1 stop28h 35mMultiple Airlines
Deal found 3/2$617
This lol.travel deal was found by Cheapflights users on 3/2. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/66:00 amPDX - LHR
2 stops16h 30mAir Canada
Tue 4/229:30 amLHR - PDX
2 stops16h 55mAir Canada
Deal found 3/2$619

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 March 3, 2025.

Fly from

Portland

Fly to

United Kingdom

Route

Depart

Return

Price

PortlandInverness

PDX - INV

PDXINV

Portland

Tue 4/1

7:35 am-2:55 pm

2 stops23h 20m

Inverness

Tue 4/8

3:45 pm-5:35 pm

1 stop33h 50m

$512

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Tue 4/1

6:00 am-3:30 pm

3 stops25h 30m

Glasgow Intl

Mon 4/7

9:50 pm-10:10 pm

3 stops32h 20m

$597

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 4/6

7:25 pm-1:00 pm

Nonstop9h 35m

London Heathrow

Tue 4/22

3:40 pm-5:35 pm

Nonstop9h 55m

$603

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 4/20

11:59 pm-9:00 am

1 stop25h 01m

London Heathrow

Wed 4/30

3:40 pm-5:35 pm

Nonstop9h 55m

$606

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Tue 4/1

7:25 pm-6:50 pm

1 stop15h 25m

Glasgow Intl

Tue 4/8

8:25 pm-5:35 pm

1 stop29h 10m

$609

PortlandLondon

PDX - LGW

PDXLGW

Portland

Tue 4/1

6:13 pm-10:00 am

2 stops31h 47m

London Gatwick

Thu 4/24

10:00 am-1:37 pm

2 stops35h 37m

$611

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 4/6

10:10 am-11:50 am

2 stops17h 40m

London Heathrow

Tue 4/22

2:10 pm-10:10 pm

1 stop16h 00m

$612

PortlandAberdeen

PDX - ABZ

PDXABZ

Portland

Tue 4/1

7:25 pm-4:05 pm

1 stop12h 40m

Aberdeen Dyce

Tue 4/8

9:00 pm-5:35 pm

1 stop28h 35m

$612

PortlandAberdeen

PDX - ABZ

PDXABZ

Portland

Tue 4/1

11:55 am-4:05 pm

2 stops20h 10m

Aberdeen Dyce

Tue 4/8

9:00 pm-5:35 pm

1 stop28h 35m

$617

PortlandLondon

PDX - LHR

PDXLHR

Portland

Sun 4/6

6:00 am-6:30 am

2 stops16h 30m

London Heathrow

Tue 4/22

9:30 am-6:25 pm

2 stops16h 55m

$619

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

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 $1,135). 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 March 3, 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 March 3, 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair 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
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

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
8,070 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

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
1,322 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

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
1,271 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

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
1,562 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

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.

Air France
7.4
Good
1,435 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

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 Icelandair ($262), British Airways ($408), and WestJet ($418).

  • 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 (89%), American Airlines (78%) or Alaska Airlines (78%) 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 $419. On average you can expect to pay $1,682. The most popular route, (Portland - London Heathrow), can usually be booked for $597.

  • 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 $1,135). 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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Boise to Heathrow flights
Portland to Glasgow Intl flights
Portland to Sabiha Gokcen flights
Portland to Copenhagen flights
Portland to Florence flights
Portland to Munich flights
Boise to Charles de Gaulle flights
Portland to Geneva flights
Portland to Bruxelles-National flights
Portland to Arlanda flights
Portland to Naples flights
Eugene to Barcelona-El Prat flights
Boise to Madrid flights
Boise to Gatwick flights
Portland to Zagreb flights
Redmond to Heathrow flights
Boise to Dublin flights
Portland to Split flights
Portland to Porto flights
Portland to Vienna flights
Boise to Frankfurt flights
Boise to Barcelona-El Prat flights
Boise to Vicenza flights
Portland to Prague flights
Boise to Copenhagen flights
Boise to Leonardo da Vinci/Fiumicino flights
Medford to Heathrow 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 March 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$491Average$835FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$512Average$1,086FlexibilityNo cancel feeOn-time67%
IberiaCheapest$599Average$786FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$604Average$865FlexibilityNo cancel feeOn-time70%
DeltaCheapest$611Average$934FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$617Average$958FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$627Average$837FlexibilityNo cancel feeOn-time71%
FinnairCheapest$629Average$788FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$639Average$974FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$651Average$966FlexibilityNo cancel feeOn-time72%
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