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$249+ Cheap flights from Portland, ME (PWM) 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LHR
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
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 (PWM) 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 January 21, 2025.

Round-trip from

$583
(JetBlue Airways)

One-way from

$249
(JetBlue)
From Portland to United Kingdom
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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 January 21, 2025.

This JetBlue Airways deal was found by Cheapflights users on 1/20. 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 JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/315:35 pmPWM - LHR
1 stop10h 55mJetBlue
Sun 4/138:15 amLHR - PWM
1 stop13h 25mJetBlue
Deal found 1/20$583
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/812:50 pmPWM - GLA
2 stops18h 20mAmerican Airlines
Tue 4/157:00 amGLA - PWM
2 stops20h 42mAmerican Airlines
Deal found 1/21$685
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 3/55:45 amPWM - LHR
1 stop19h 50mAmerican Airlines
Wed 3/129:50 amLHR - PWM
2 stops17h 07mAmerican Airlines
Deal found 1/20$709
This Delta deal was found by Cheapflights users on 1/20. 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.
Wed 3/54:46 pmPWM - GLA
2 stops18h 49mDelta
Wed 3/126:05 amGLA - PWM
2 stops22h 10mDelta
Deal found 1/20$713
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/812:50 pmPWM - EDI
2 stops15h 30mAmerican Airlines
Tue 4/159:15 amEDI - PWM
2 stops18h 27mAmerican Airlines
Deal found 1/21$720
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/82:31 pmPWM - EDI
2 stops15h 59mUnited Airlines
Tue 4/1512:30 pmEDI - PWM
1 stop12h 14mUnited Airlines
Deal found 1/21$728
This British Airways deal was found by Cheapflights users on 1/20. 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 3/55:45 amPWM - LHR
1 stop19h 50mMultiple Airlines
Wed 3/121:10 pmLHR - PWM
1 stop13h 47mMultiple Airlines
Deal found 1/20$740
This Delta deal was found by Cheapflights users on 1/20. 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 2/173:04 pmPWM - LHR
1 stop15h 06mDelta
Mon 2/245:35 pmLHR - PWM
2 stops25h 47mDelta
Deal found 1/20$742
This Air Canada deal was found by Cheapflights users on 1/20. 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.
Wed 3/512:15 pmPWM - LHR
3 stops18h 35mAir Canada
Wed 3/126:00 pmLHR - PWM
3 stops28h 39mAir Canada
Deal found 1/20$752
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/187:15 pmPWM - EDI
2 stops16h 55mMultiple Airlines
Mon 2/245:50 pmEDI - PWM
2 stops29h 41mMultiple Airlines
Deal found 1/21$760
This United Airlines deal was found by Cheapflights users on 1/19. 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.
Mon 2/173:55 pmPWM - LHR
1 stop10h 00mUnited Airlines
Mon 2/2412:05 pmLHR - PWM
2 stops16h 10mUnited Airlines
Deal found 1/19$773
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/83:08 pmPWM - EDI
1 stop10h 37mKLM
Tue 4/159:00 amEDI - PWM
1 stop20h 40mKLM
Deal found 1/21$784

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandLondon

PWM - LHR

PWMLHR

Portland

Mon 3/31

5:35 pm-9:30 am

1 stop10h 55m

London Heathrow

Sun 4/13

8:15 am-4:40 pm

1 stop13h 25m

$583

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Tue 4/8

12:50 pm-12:10 pm

2 stops18h 20m

Glasgow Intl

Tue 4/15

7:00 am-10:42 pm

2 stops20h 42m

$685

PortlandLondon

PWM - LHR

PWMLHR

Portland

Wed 3/5

5:45 am-6:35 am

1 stop19h 50m

London Heathrow

Wed 3/12

9:50 am-10:57 pm

2 stops17h 07m

$709

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Wed 3/5

4:46 pm-4:35 pm

2 stops18h 49m

Glasgow Intl

Wed 3/12

6:05 am-12:15 am

2 stops22h 10m

$713

PortlandEdinburgh

PWM - EDI

PWMEDI

Portland

Tue 4/8

12:50 pm-9:20 am

2 stops15h 30m

Edinburgh Turnhouse

Tue 4/15

9:15 am-10:42 pm

2 stops18h 27m

$720

PortlandEdinburgh

PWM - EDI

PWMEDI

Portland

Tue 4/8

2:31 pm-11:30 am

2 stops15h 59m

Edinburgh Turnhouse

Tue 4/15

12:30 pm-7:44 pm

1 stop12h 14m

$728

PortlandLondon

PWM - LHR

PWMLHR

Portland

Wed 3/5

5:45 am-6:35 am

1 stop19h 50m

London Heathrow

Wed 3/12

1:10 pm-10:57 pm

1 stop13h 47m

$740

PortlandLondon

PWM - LHR

PWMLHR

Portland

Mon 2/17

3:04 pm-11:10 am

1 stop15h 06m

London Heathrow

Mon 2/24

5:35 pm-2:22 pm

2 stops25h 47m

$742

PortlandEdinburgh

PWM - EDI

PWMEDI

Portland

Tue 2/18

7:15 pm-5:10 pm

2 stops16h 55m

Edinburgh Turnhouse

Mon 2/24

5:50 pm-6:31 pm

2 stops29h 41m

$760

PortlandLondon

PWM - LHR

PWMLHR

Portland

Mon 2/17

3:55 pm-6:55 am

1 stop10h 00m

London Heathrow

Mon 2/24

12:05 pm-11:15 pm

2 stops16h 10m

$773

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 36 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, Maine to United Kingdom?

Currently, November is the cheapest month in which you can book a flight from Portland, Maine to United Kingdom (average of $661). Flying from Portland, Maine to United Kingdom in June is currently the most expensive (average of $1,137). 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 PWM 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 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to United Kingdom as you normally would.

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 January 21, 2025.
Read through reviews of airlines operating flights from Portland to United Kingdom, such as JetBlue, Air Canada and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

8.0

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

8.0

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

8.0

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

Austrian Airlines
7.6
Good
786 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

8.0

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

JetBlue
7.4
Good
3,200 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

8.0

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

United Airlines
7.4
Good
8,984 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

8.0

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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?

    For a flight from Portland to United Kingdom, you will be flying from Portland. Portland (PWM) is just 2.9 mi from the center of the city.

  • What are the cheapest airlines to fly from Portland, Maine to United Kingdom one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $249. Users have also found prices from $427 and $436 on Air Canada and United Airlines, respectively.

  • What are the most popular routes from Portland, Maine to United Kingdom?

    Most travelers choose Portland - London Heathrow, Portland - London Gatwick or Portland - Edinburgh Turnhouse when deciding on the best route from Portland, Maine to United Kingdom.

  • 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, Maine to United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from Portland, Maine to United Kingdom (average of $661). Flying from Portland, Maine to United Kingdom in June is currently the most expensive (average of $1,137). 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

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Top 5 airlines flying from Portland to United Kingdom

Discover the top 5 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$565Average$985FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$586Average$750FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$602Average$1,013FlexibilityNo cancel feeOn-time71%
KLMCheapest$680Average$910FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$725Average$1,036FlexibilityNo cancel feeOn-time69%
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