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Portland

$657+ Cheap flights from the United Kingdom to Portland, ME (PWM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
May 3 — May 101
Sat 5/3
Sat 5/10
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 28, 2025.

Round-trip from

$657
(JetBlue)

Popular in

August

Cheapest in

February

Average price

$892
From United Kingdom to Portland
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 28, 2025.

This JetBlue deal was found by Cheapflights users on 4/28. 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.
Thu 10/211:55 amLHR - PWM
1 stop15h 04mJetBlue
Mon 10/62:15 pmPWM - LHR
1 stop14h 15mJetBlue
Deal found 4/28$657
This Delta deal was found by Cheapflights users on 4/28. 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.
Thu 5/89:55 amLHR - PWM
2 stops19h 19mDelta
Fri 5/162:30 pmPWM - LHR
1 stop10h 55mDelta
Deal found 4/28$816
This Aer Lingus deal was found by Cheapflights users on 4/28. 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 Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/182:40 pmMAN - PWM
1 stop12h 19mMultiple Airlines
Thu 10/27:30 amPWM - MAN
1 stop18h 20mMultiple Airlines
Deal found 4/28$834
This United Airlines deal was found by Cheapflights users on 4/28. 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 10/26:30 amLHR - PWM
2 stops17h 07mUnited Airlines
Mon 10/63:13 pmPWM - LHR
2 stops14h 27mUnited Airlines
Deal found 4/28$868
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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.
Tue 5/277:05 amLHR - PWM
2 stops22h 09mScandinavian Airlines
Tue 6/32:30 pmPWM - LHR
2 stops22h 10mScandinavian Airlines
Deal found 4/28$877
This TravelUp deal was found by Cheapflights users on 4/28. 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.
Thu 9/182:15 pmMAN - PWM
1 stop14h 16mKLM
Thu 10/212:50 pmPWM - MAN
2 stops14h 30mKLM
Deal found 4/28$916
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Thu 6/126:00 amLHR - PWM
3 stops22h 30mMultiple Airlines
Thu 6/195:35 pmPWM - LHR
2 stops32h 00mMultiple Airlines
Deal found 4/28$923
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sat 9/2011:50 amMAN - PWM
2 stops30h 32mUnited Airlines
Sat 10/44:56 pmPWM - MAN
2 stops35h 54mUnited Airlines
Deal found 4/28$975
This Delta deal was found by Cheapflights users on 4/28. 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.
Sat 9/202:15 pmMAN - PWM
1 stop28h 37mDelta
Sat 10/42:35 pmPWM - MAN
2 stops16h 20mDelta
Deal found 4/28$979
This Netflights deal was found by Cheapflights users on 4/28. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1212:35 pmMAN - PWM
1 stop16h 51mVirgin Atlantic
Thu 6/1912:55 pmPWM - MAN
2 stops16h 35mVirgin Atlantic
Deal found 4/28$1,045
This Air Canada deal was found by Cheapflights users on 4/28. 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.
Thu 10/28:30 amLHR - PWM
3 stops19h 31mAir Canada
Mon 10/68:00 amPWM - LHR
3 stops17h 30mAir Canada
Deal found 4/28$1,280
This oojo deal was found by Cheapflights users on 4/28. 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 7/610:25 pmLHR - PWM
2 stops30h 12mTurkish Airlines
Sat 7/126:10 amPWM - LHR
2 stops22h 40mTurkish Airlines
Deal found 4/28$1,478

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 28, 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 10/2

11:55 am-9:59 pm

1 stop15h 04m

Portland

Mon 10/6

2:15 pm-9:30 am

1 stop14h 15m

$657

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 5/8

9:55 am-12:14 am

2 stops19h 19m

Portland

Fri 5/16

2:30 pm-6:25 am

1 stop10h 55m

$816

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 9/18

2:40 pm-9:59 pm

1 stop12h 19m

Portland

Thu 10/2

7:30 am-6:50 am

1 stop18h 20m

$834

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 10/2

6:30 am-6:37 pm

2 stops17h 07m

Portland

Mon 10/6

3:13 pm-10:40 am

2 stops14h 27m

$868

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 5/27

7:05 am-12:14 am

2 stops22h 09m

Portland

Tue 6/3

2:30 pm-5:40 pm

2 stops22h 10m

$877

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 9/18

2:15 pm-11:31 pm

1 stop14h 16m

Portland

Thu 10/2

12:50 pm-8:20 am

2 stops14h 30m

$916

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 6/12

6:00 am-11:30 pm

3 stops22h 30m

Portland

Thu 6/19

5:35 pm-6:35 am

2 stops32h 00m

$923

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Sat 9/20

11:50 am-1:22 pm

2 stops30h 32m

Portland

Sat 10/4

4:56 pm-9:50 am

2 stops35h 54m

$975

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Sat 9/20

2:15 pm-1:52 pm

1 stop28h 37m

Portland

Sat 10/4

2:35 pm-11:55 am

2 stops16h 20m

$979

ManchesterPortland

MAN - PWM

MANPWM

Manchester

Thu 6/12

12:35 pm-12:26 am

1 stop16h 51m

Portland

Thu 6/19

12:55 pm-10:30 am

2 stops16h 35m

$1,045

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 17 results
1
2

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 28, 2025.
See what other customers who have flown with Delta, KLM and United Airlines from United Kingdom to Portland have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

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
1,333 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

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
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

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
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

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
JetBlue
7.3
Good
2,922 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

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.

  • 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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