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Portland

$570+ Cheap flights from Heathrow (LHR) 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheap flight deals from Heathrow to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Portland (PWM). 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 April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
2 stars

Round-trip from

$657
(JetBlue)

One-way from

$570
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$956
Provider with most accurate pricing for London Heathrow-Portland flight deals.
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Provider most trusted by Cheapflights users for London Heathrow-Portland flights.
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From London Heathrow to Portland
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One-way flight from London Heathrow to Portland
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Highest demand for flights based on searches. 1% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 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 Heathrow to Portland

Cheapest flights from Heathrow to Portland
Explore the most affordable flight options available from Heathrow to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 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 The Travel House deal was found by Cheapflights users on 4/29. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/28:25 amLHR - PWM
2 stops18h 34mIcelandair
Mon 10/67:30 amPWM - LHR
1 stop21h 00mIcelandair
Deal found 4/29$719
This TravelUp deal was found by Cheapflights users on 4/29. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/911:20 amLHR - PWM
1 stop17h 39mKLM
Thu 5/152:30 pmPWM - LHR
1 stop13h 45mKLM
Deal found 4/29$760
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/911:45 amLHR - PWM
2 stops17h 29mDelta
Thu 5/152:30 pmPWM - LHR
1 stop15h 55mDelta
Deal found 4/29$779
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 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 Netflights deal was found by Cheapflights users on 4/29. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/19:35 amLHR - PWM
2 stops19h 24mVirgin Atlantic
Tue 6/1012:55 pmPWM - LHR
1 stop19h 35mVirgin Atlantic
Deal found 4/29$934
This Expedia deal was found by Cheapflights users on 4/29. 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.
Fri 12/2612:00 pmLHR - PWM
1 stop11h 13mAustrian Airlines
Sat 1/311:17 amPWM - LHR
1 stop18h 48mAustrian Airlines
Deal found 4/29$1,273
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 Heathrow 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 30, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Portland that are best for you.

Fly from

Heathrow

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 10/2

8:25 am-9:59 pm

2 stops18h 34m

Portland

Mon 10/6

7:30 am-9:30 am

1 stop21h 00m

$719

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 5/9

11:20 am-11:59 pm

1 stop17h 39m

Portland

Thu 5/15

2:30 pm-9:15 am

1 stop13h 45m

$760

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 5/9

11:45 am-12:14 am

2 stops17h 29m

Portland

Thu 5/15

2:30 pm-11:25 am

1 stop15h 55m

$779

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

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

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sun 6/1

9:35 am-11:59 pm

2 stops19h 24m

Portland

Tue 6/10

12:55 pm-1:30 pm

1 stop19h 35m

$934

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 10/2

8:30 am-11:01 pm

3 stops19h 31m

Portland

Mon 10/6

8:00 am-6:30 am

3 stops17h 30m

$1,280

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sun 7/6

10:25 pm-11:37 pm

2 stops30h 12m

Portland

Sat 7/12

6:10 am-9:50 am

2 stops22h 40m

$1,478

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 13 results
1
2
  • Most accurate provider: When it comes to deals on London Heathrow Airport-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Portland, Maine flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Heathrow to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Heathrow 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 London Heathrow Airport to Portland

What is the cheapest month to book a flight from London Heathrow Airport to Portland, Maine?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Portland, Maine (average of $296). Flying from London Heathrow Airport to Portland, Maine in May is currently the most expensive (average of $405). 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 30, 2025.
See what other customers who have flown with Delta, KLM and United Airlines from London to Portland have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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 Heathrow 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 London Heathrow?

    Located just 2.9 mi from the city center, Portland is the airport most travelers will use when flying to Portland from London Heathrow. Booking flights from London Heathrow to Portland (PWM) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 0 different airlines.

  • What are the cheapest airlines flying from London Heathrow Airport to Portland, Maine round-trip?

    Cheapflights users have booked flights from London Heathrow Airport to Portland, Maine round-trip from $657. Other airlines that can offer you cheap pricing are Icelandair, from $719, and KLM, from $760. You may be able to fly from London Heathrow Airport to Portland, Maine for 25% less than the average price by searching for these airlines.

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

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

  • How can I find direct flights from Heathrow to Portland?

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 London Heathrow Airport to Portland, Maine?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Portland, Maine (average of $296). Flying from London Heathrow Airport to Portland, Maine in May is currently the most expensive (average of $405). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
North Conway
Bath
Brunswick
Auburn
Conway
Lewiston

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Alternative routes for Heathrow to Portland

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