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Portland

$650+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
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 March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$682
(TravelUp)

One-way from

$650
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$800
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
Search Deals
One-way flight from London Heathrow to Portland
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Highest demand for flights based on searches. 17% potential increase in price ($185 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 3, 2025.

This EaseMyTrip 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1111:30 amLHR - PWM
2 stops15h 44mVirgin Atlantic
Tue 3/185:30 amPWM - LHR
1 stop26h 10mVirgin Atlantic
Deal found 3/3$656
This EaseMyTrip 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/112:30 pmLHR - PWM
1 stop13h 28mDelta
Tue 3/181:02 pmPWM - LHR
1 stop13h 48mDelta
Deal found 3/3$670
This TravelUp 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/234:05 pmLHR - PWM
1 stop13h 37mKLM
Tue 4/292:59 pmPWM - LHR
1 stop15h 01mKLM
Deal found 3/2$682
This TravelUp 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/233:15 pmLHR - PWM
1 stop13h 44mAir France
Tue 4/291:00 pmPWM - LHR
2 stops14h 50mAir France
Deal found 3/2$685
This The Travel House 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/238:55 amLHR - PWM
2 stops17h 10mFinnair
Tue 4/292:33 pmPWM - LHR
2 stops12h 17mFinnair
Deal found 3/2$691
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.
Sat 5/108:15 amLHR - PWM
1 stop18h 42mJetBlue
Tue 5/203:20 pmPWM - LHR
1 stop13h 10mJetBlue
Deal found 3/2$704
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/107:25 amLHR - PWM
2 stops16h 48mUnited Airlines
Tue 5/203:43 pmPWM - LHR
1 stop10h 32mUnited Airlines
Deal found 3/2$749
This Scandinavian Airlines 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/116:40 amLHR - PWM
2 stops21h 35mScandinavian Airlines
Tue 3/183:00 pmPWM - LHR
3 stops22h 00mScandinavian Airlines
Deal found 3/3$927
This The Travel House 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1611:55 amLHR - PWM
1 stop16h 42mIcelandair
Sat 8/232:20 pmPWM - LHR
1 stop25h 25mIcelandair
Deal found 3/3$1,193
This Condor 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/166:30 amLHR - PWM
2 stops22h 07mMultiple Airlines
Sat 8/236:10 amPWM - LHR
2 stops21h 30mMultiple Airlines
Deal found 3/3$1,392
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/148:30 amLHR - PWM
3 stops19h 31mAir Canada
Mon 7/288:00 amPWM - LHR
3 stops17h 35mAir Canada
Deal found 3/3$1,694

Find flights from Heathrow to Portland within your budget

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 March 3, 2025.

Fly from

Heathrow

Fly to

Portland

Route

Depart

Return

Price

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 4/23

4:05 pm-12:42 am

1 stop13h 37m

Portland

Tue 4/29

2:59 pm-11:00 am

1 stop15h 01m

$682

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 4/23

3:15 pm-11:59 pm

1 stop13h 44m

Portland

Tue 4/29

1:00 pm-8:50 am

2 stops14h 50m

$685

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Wed 4/23

8:55 am-9:05 pm

2 stops17h 10m

Portland

Tue 4/29

2:33 pm-7:50 am

2 stops12h 17m

$691

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 5/10

8:15 am-9:57 pm

1 stop18h 42m

Portland

Tue 5/20

3:20 pm-9:30 am

1 stop13h 10m

$704

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 5/10

7:25 am-7:13 pm

2 stops16h 48m

Portland

Tue 5/20

3:43 pm-7:15 am

1 stop10h 32m

$749

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 7/14

8:10 pm-11:39 am

2 stops20h 29m

Portland

Mon 7/28

5:00 pm-1:30 pm

2 stops15h 30m

$957

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 5/29

11:45 am-11:54 pm

2 stops17h 09m

Portland

Sun 6/1

1:30 pm-12:35 pm

2 stops18h 05m

$986

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 5/10

6:40 am-12:14 am

2 stops22h 34m

Portland

Tue 5/20

6:35 am-9:20 am

3 stops21h 45m

$1,007

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 8/16

11:55 am-11:37 pm

1 stop16h 42m

Portland

Sat 8/23

2:20 pm-8:45 pm

1 stop25h 25m

$1,193

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 8/16

6:30 am-11:37 pm

2 stops22h 07m

Portland

Sat 8/23

6:10 am-8:40 am

2 stops21h 30m

$1,392

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 16 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.

Travel insights for flights from Heathrow to Portland

Get recent, data-driven insights about flights from Heathrow to Portland including ideal travel times, pricing trends, and more.

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 April is currently the most expensive (average of $477). 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 March 3, 2025.
See what other customers who have flown with Delta, KLM and Finnair 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
8,068 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

8.0

Overall

8.0

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
8,068 reviews
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

8.0

Overall

8.0

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
8,068 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

8.0

Overall

8.0

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

Finnair
7.6
Good
1,271 reviews
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

8.0

Overall

8.0

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
1,437 reviews
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

8.0

Overall

8.0

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
8,679 reviews
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

8.0

Overall

8.0

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 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 $682. Other airlines that can offer you cheap pricing are Air France, from $685, and Finnair, from $691. You may be able to fly from London Heathrow Airport to Portland, Maine for 23% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from London Heathrow Airport to Portland, Maine one-way?

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $810. WestJet flights start at $1,046 while deals on Turkish Airlines start at $1,176 one-way.

  • 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 April is currently the most expensive (average of $477). 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

See prices for flight routes from nearby airports that may be better suited for you.
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Heathrow to Bangor flights
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