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$479+ Cheap flights from the United Kingdom to Portland, ME (PWM)

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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
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Cheap flight deals from United Kingdom to Portland

Keep the following information in mind while searching for United Kingdom to Portland flight deals. Data was last updated April 2, 2025.

Round-trip from

$591
(The Travel House)

One-way from

$479
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$892
From United Kingdom to Portland
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One-way flight from United Kingdom to Portland
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Highest demand for flights based on searches. 9% potential increase in price ($94 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from United Kingdom to Portland

Cheapest flights from United Kingdom to Portland
Explore the most affordable flight options available from United Kingdom to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.

This The Travel House deal was found by Cheapflights users on 4/1. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/18:15 amLHR - PWM
1 stop18h 42mIcelandair
Thu 5/87:12 amPWM - LHR
1 stop21h 18mIcelandair
Deal found 4/1$591
This JetBlue deal was found by Cheapflights users on 3/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/58:15 amLHR - PWM
1 stop11h 10mJetBlue
Mon 5/123:35 pmPWM - LHR
1 stop12h 55mJetBlue
Deal found 3/31$601
This EaseMyTrip deal was found by Cheapflights users on 3/31. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/510:55 amLHR - PWM
2 stops18h 04mVirgin Atlantic
Mon 5/125:30 amPWM - LHR
1 stop20h 15mVirgin Atlantic
Deal found 3/31$690
This Delta deal was found by Cheapflights users on 3/31. 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 5/511:45 amLHR - PWM
2 stops17h 57mDelta
Mon 5/125:00 pmPWM - LHR
2 stops15h 30mDelta
Deal found 3/31$717
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Thu 5/1512:10 pmLHR - PWM
2 stops16h 17mUnited Airlines
Thu 5/229:30 amPWM - LHR
2 stops19h 40mUnited Airlines
Deal found 3/31$763
This British Airways deal was found by Cheapflights users on 4/1. 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.
Fri 5/161:25 pmLHR - PWM
1 stop14h 20mMultiple Airlines
Fri 5/231:07 pmPWM - LHR
1 stop12h 33mMultiple Airlines
Deal found 4/1$792
This TravelUp deal was found by Cheapflights users on 4/1. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1612:35 pmMAN - PWM
1 stop16h 24mKLM
Fri 5/232:30 pmPWM - MAN
2 stops12h 50mKLM
Deal found 4/1$891
This Scandinavian Airlines deal was found by Cheapflights users on 3/31. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/27:05 amLHR - PWM
3 stops22h 37mScandinavian Airlines
Fri 5/96:35 amPWM - LHR
2 stops22h 00mScandinavian Airlines
Deal found 3/31$896
This Delta deal was found by Cheapflights users on 4/1. 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.
Fri 5/162:15 pmMAN - PWM
1 stop28h 35mDelta
Fri 5/232:30 pmPWM - MAN
1 stop12h 15mDelta
Deal found 4/1$925
This Aeromexico deal was found by Cheapflights users on 3/31. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/65:25 pmLHR - PWM
1 stop35h 34mAir France
Sat 7/125:00 pmPWM - LHR
2 stops34h 50mAir France
Deal found 3/31$1,054
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Fri 4/117:00 amMAN - PWM
2 stops20h 24mAmerican Airlines
Thu 4/174:16 pmPWM - MAN
2 stops14h 19mAmerican Airlines
Deal found 4/1$1,245
This Air Canada deal was found by Cheapflights users on 4/1. 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.
Fri 5/168:30 amLHR - PWM
3 stops19h 57mAir Canada
Fri 5/236:10 amPWM - LHR
3 stops19h 20mAir Canada
Deal found 4/1$1,468

Cheapflights Fare Finder

Customize your flight search to find flights from United Kingdom to Portland 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 April 2, 2025.
Use the filters below to find and compare flights from the United Kingdom to Portland that are best for you.

Fly from

United Kingdom

Fly to

Portland

Route

Depart

Return

Price

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 5/1

8:15 am-9:57 pm

1 stop18h 42m

Portland

Thu 5/8

7:12 am-9:30 am

1 stop21h 18m

$591

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 5/5

8:15 am-2:25 pm

1 stop11h 10m

Portland

Mon 5/12

3:35 pm-9:30 am

1 stop12h 55m

$601

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 5/5

10:55 am-11:59 pm

2 stops18h 04m

Portland

Mon 5/12

5:30 am-6:45 am

1 stop20h 15m

$690

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 5/5

11:45 am-12:42 am

2 stops17h 57m

Portland

Mon 5/12

5:00 pm-1:30 pm

2 stops15h 30m

$717

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 5/15

12:10 pm-11:27 pm

2 stops16h 17m

Portland

Thu 5/22

9:30 am-10:10 am

2 stops19h 40m

$763

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 5/16

1:25 pm-10:45 pm

1 stop14h 20m

Portland

Fri 5/23

1:07 pm-6:40 am

1 stop12h 33m

$792

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Fri 5/16

12:35 pm-11:59 pm

1 stop16h 24m

Portland

Fri 5/23

2:30 pm-8:20 am

2 stops12h 50m

$891

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 5/2

7:05 am-12:42 am

3 stops22h 37m

Portland

Fri 5/9

6:35 am-9:35 am

2 stops22h 00m

$896

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Fri 5/16

2:15 pm-1:50 pm

1 stop28h 35m

Portland

Fri 5/23

2:30 pm-7:45 am

1 stop12h 15m

$925

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sun 7/6

5:25 pm-11:59 pm

1 stop35h 34m

Portland

Sat 7/12

5:00 pm-8:50 am

2 stops34h 50m

$1,054

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 23 results
1
2
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Best time to book a flight from United Kingdom to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from United Kingdom 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 the United Kingdom to Portland

What is the cheapest month to book a flight from United Kingdom to Portland, Maine?

Currently, January is the cheapest month in which you can book a flight from United Kingdom to Portland, Maine (average of $296). Flying from United Kingdom to Portland, Maine in May is currently the most expensive (average of $416). 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.

Rainfall in Portland by month

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

In terms of precipitation, rainfall in Portland, Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Portland, Maine when rainfall is around 2.9 in.

Temperature in Portland by month

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

If weather is an important factor for your trip to Portland, Maine, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated April 2, 2025.
Delta
8.0
Very good
7,898 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,898 reviews
Delta
8.0
Very good
7,898 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very good
7,898 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
771 reviews
Delta
8.0
Very good
7,898 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.4
Good
1,425 reviews
Delta
8.0
Very good
7,898 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,615 reviews
Delta
8.0
Very good
7,898 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Portland. 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 into for flights to Portland from United Kingdom?

    If you book a flight to Portland from United Kingdom, you will be flying to Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland.

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

    $729 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on WestJet and Turkish Airlines, with prices starting from $888 and $1,008, respectively.

  • Can I find deals for flights from United Kingdom to Portland that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Portland.

  • Can I find deals for business class flights from United Kingdom to Portland?

    Yes. Cheapflights offers flight deals from United Kingdom to Portland 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 United Kingdom to Portland, Maine?

    Currently, January is the cheapest month in which you can book a flight from United Kingdom to Portland, Maine (average of $296). Flying from United Kingdom to Portland, Maine in May is currently the most expensive (average of $416). 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

Traveling to a place near the United Kingdom?

Book flights to the United Kingdom if you plan to visit one of these locations
North Conway
Bath
Brunswick
Auburn
Conway
Lewiston

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