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Portland

$616+ Cheap flights from Heathrow (LHR) 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
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 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$616
(JetBlue)

Popular in

July

Cheapest in

February

Average price

$902
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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Highest demand for flights based on searches. 15% potential increase in price ($159 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 4, 2025.

This JetBlue deal was found by Cheapflights users on 4/3. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/18:15 amLHR - PWM
1 stop11h 10mJetBlue
Thu 5/83:35 pmPWM - LHR
1 stop12h 55mJetBlue
Deal found 4/3$616
This The Travel House deal was found by Cheapflights users on 4/3. 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.
Fri 9/268:15 amLHR - PWM
1 stop18h 44mIcelandair
Sat 10/42:15 pmPWM - LHR
1 stop25h 30mIcelandair
Deal found 4/3$624
This Delta deal was found by Cheapflights users on 4/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/19:55 amLHR - PWM
2 stops19h 47mDelta
Thu 5/86:35 amPWM - LHR
1 stop18h 50mDelta
Deal found 4/3$757
This Mytrip deal was found by Cheapflights users on 4/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/18:05 pmLHR - PWM
3 stops32h 22mMultiple Airlines
Thu 5/86:00 amPWM - LHR
3 stops19h 30mMultiple Airlines
Deal found 4/3$787
This TravelUp deal was found by Cheapflights users on 4/4. 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.
Sat 9/69:40 amLHR - PWM
2 stops17h 04mVirgin Atlantic
Sat 9/206:55 pmPWM - LHR
2 stops30h 25mVirgin Atlantic
Deal found 4/4$801
This Orbitz deal was found by Cheapflights users on 4/4. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/45:40 pmLHR - PWM
2 stops34h 47mAir Canada
Sun 5/116:00 amPWM - LHR
2 stops22h 35mAir Canada
Deal found 4/4$836
This Scandinavian Airlines deal was found by Cheapflights users on 4/4. 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 5/26:40 amLHR - PWM
3 stops23h 02mScandinavian Airlines
Fri 5/92:30 pmPWM - LHR
3 stops19h 05mScandinavian Airlines
Deal found 4/4$1,007
This Aeromexico deal was found by Cheapflights users on 4/3. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/68:10 pmLHR - PWM
2 stops32h 49mAir France
Sat 7/125:30 pmPWM - LHR
1 stop32h 15mAir France
Deal found 4/3$1,113
This United Airlines deal was found by Cheapflights users on 4/4. 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 5/208:45 amLHR - PWM
2 stops20h 14mUnited Airlines
Sat 5/246:10 amPWM - LHR
1 stop9h 30mUnited Airlines
Deal found 4/4$2,122
This World Air Fares deal was found by Cheapflights users on 4/4. 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 World Air Fares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/204:00 pmLHR - PWM
1 stop12h 27mLufthansa
Sat 5/2412:15 pmPWM - LHR
1 stop13h 40mLufthansa
Deal found 4/4$2,127
This American Airlines deal was found by Cheapflights users on 4/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/151:10 pmLHR - PWM
1 stop14h 36mAmerican Airlines
Sun 8/173:48 pmPWM - LHR
1 stop12h 22mAmerican Airlines
Deal found 4/3$4,852

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 4, 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 5/1

8:15 am-2:25 pm

1 stop11h 10m

Portland

Thu 5/8

3:35 pm-9:30 am

1 stop12h 55m

$616

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 9/26

8:15 am-9:59 pm

1 stop18h 44m

Portland

Sat 10/4

2:15 pm-8:45 pm

1 stop25h 30m

$624

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 5/1

9:55 am-12:42 am

2 stops19h 47m

Portland

Thu 5/8

6:35 am-6:25 am

1 stop18h 50m

$757

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 5/1

8:05 pm-11:27 pm

3 stops32h 22m

Portland

Thu 5/8

6:00 am-6:30 am

3 stops19h 30m

$787

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sat 9/6

9:40 am-9:44 pm

2 stops17h 04m

Portland

Sat 9/20

6:55 pm-6:20 am

2 stops30h 25m

$801

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sun 5/4

5:40 pm-11:27 pm

2 stops34h 47m

Portland

Sun 5/11

6:00 am-9:35 am

2 stops22h 35m

$836

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 5/2

6:40 am-12:42 am

3 stops23h 02m

Portland

Fri 5/9

2:30 pm-2:35 pm

3 stops19h 05m

$1,007

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Sun 7/6

8:10 pm-11:59 pm

2 stops32h 49m

Portland

Sat 7/12

5:30 pm-6:45 am

1 stop32h 15m

$1,113

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 5/20

8:45 am-11:59 pm

2 stops20h 14m

Portland

Sat 5/24

6:10 am-8:40 pm

1 stop9h 30m

$2,122

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 5/20

4:00 pm-11:27 pm

1 stop12h 27m

Portland

Sat 5/24

12:15 pm-6:55 am

1 stop13h 40m

$2,127

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Showing 1-10 of 18 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 $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 4, 2025.
Delta
8.0
Very good
7,900 reviews

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
7,900 reviews
Delta
8.0
Very good
7,900 reviews

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
772 reviews
Delta
8.0
Very good
7,900 reviews

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
1,427 reviews
Delta
8.0
Very good
7,900 reviews

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
8,618 reviews
Delta
8.0
Very good
7,900 reviews

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
640 reviews
Delta
8.0
Very good
7,900 reviews

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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 $616. Other airlines that can offer you cheap pricing are Icelandair, from $624, and Delta, from $757. You may be able to fly from London Heathrow Airport to Portland, Maine for 30% 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 WestJet, which is currently one of the cheapest options available, starting at $726. JetBlue flights start at $729 while deals on Turkish Airlines start at $1,013 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 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 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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