$537+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PWM
Oct 12 — Oct 191
Round-trip
1 adult, Economy
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Find cheap flights from Heathrow to Portland with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Heathrow to Portland
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Best
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Cheapest flights from Heathrow to PortlandExplore 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 September 12, 2026.
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 September 12, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 12/36:40 am -
2 stops22h 41m
Sun 12/66:00 am -
2 stops31h 30m
Deal found 9/10![Scandinavian Airlines logo]()
$841
This Expedia deal was found by Cheapflights users on 9/12. 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.
Mon 10/1211:55 am -
1 stop16h 59m
Mon 10/196:00 am -
1 stop9h 45m
Deal found 9/12![JetBlue logo]()
$890
This Flighttix deal was found by Cheapflights users on 9/12. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:15 am -
1 stop20h 39m
Sat 10/176:00 am -
1 stop9h 45m
Deal found 9/12![JetBlue logo]()
$907
This Expedia deal was found by Cheapflights users on 9/8. 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.
Tue 10/2011:20 am -
2 stops17h 34m
Mon 10/265:50 am -
2 stops21h 20m
Deal found 9/8![Multiple Airlines logo]()
$949
This Expedia deal was found by Cheapflights users on 9/12. 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.
Mon 10/1211:55 am -
1 stop16h 59m
Mon 10/196:04 am -
2 stops20h 36m
Deal found 9/12![Multiple Airlines logo]()
$950
This Expedia deal was found by Cheapflights users on 9/10. 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.
Thu 10/158:00 am -
2 stops20h 54m
Mon 10/196:00 am -
2 stops19h 35m
Deal found 9/10![Multiple Airlines logo]()
$960
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 10/269:00 am -
2 stops18h 59m
Mon 11/27:35 pm -
2 stops20h 00m
Deal found 9/11![United Airlines logo]()
$998
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Mon 10/127:25 am -
2 stops31h 37m
Mon 10/192:32 pm -
2 stops15h 48m
Deal found 9/12![United Airlines logo]()
$1,002
This Expedia deal was found by Cheapflights users on 9/10. 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.
Mon 11/236:30 am -
2 stops22h 01m
Fri 11/276:00 am -
2 stops20h 10m
Deal found 9/10![Multiple Airlines logo]()
$1,008
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/2012:10 pm -
2 stops16h 18m
Mon 10/265:50 am -
1 stop10h 45m
Deal found 9/8![United Airlines logo]()
$1,019
This United Airlines deal was found by Cheapflights users on 9/11. 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 12/37:30 am -
2 stops16h 55m
Sun 12/64:37 pm -
1 stop32h 18m
Deal found 9/11![United Airlines logo]()
$1,025
Best flights from Heathrow to PortlandDiscover carefully curated flight deals from Heathrow to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
Discover carefully curated flight deals from Heathrow to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 12/36:40 am -
2 stops22h 41m
Sun 12/66:00 am -
2 stops31h 30m
Deal found 9/9![Scandinavian Airlines logo]()
$842
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 10/269:00 am -
2 stops18h 59m
Mon 11/27:35 pm -
1 stop30h 05m
Deal found 9/11![United Airlines logo]()
$998
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/2012:10 pm -
2 stops16h 18m
Mon 10/265:50 am -
1 stop10h 45m
Deal found 9/8![United Airlines logo]()
$1,019
This United Airlines deal was found by Cheapflights users on 9/11. 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 12/37:30 am -
2 stops16h 55m
Sun 12/64:37 pm -
1 stop32h 18m
Deal found 9/11![United Airlines logo]()
$1,025
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Fri 10/212:10 pm -
2 stops16h 18m
Sun 10/47:25 pm -
1 stop30h 30m
Deal found 9/12![United Airlines logo]()
$1,038
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/151:50 pm -
2 stops14h 38m
Mon 10/192:32 pm -
1 stop11h 23m
Deal found 9/10![United Airlines logo]()
$1,040
Last-minute flights from Heathrow to PortlandDiscover last-minute flight deals from Heathrow to Portland. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from Heathrow to Portland. Data last updated September 12, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Fri 10/212:10 pm -
2 stops16h 18m
Sun 10/47:25 pm -
1 stop30h 30m
Deal found 9/12![United Airlines logo]()
$1,038
This Flighttix deal was found by Cheapflights users on 9/12. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:15 am -
1 stop20h 39m
Sat 10/176:00 am -
1 stop9h 45m
Deal found 9/12![JetBlue logo]()
$907
This Expedia deal was found by Cheapflights users on 9/12. 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.
Mon 10/1211:55 am -
1 stop16h 59m
Mon 10/196:00 am -
1 stop9h 45m
Deal found 9/12![JetBlue logo]()
$890
This Expedia deal was found by Cheapflights users on 9/12. 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.
Mon 10/1211:55 am -
1 stop16h 59m
Mon 10/196:04 am -
2 stops20h 36m
Deal found 9/12![Multiple Airlines logo]()
$950
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Mon 10/127:25 am -
2 stops31h 37m
Mon 10/192:32 pm -
2 stops15h 48m
Deal found 9/12![United Airlines logo]()
$1,002
This Expedia deal was found by Cheapflights users on 9/10. 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.
Thu 10/158:00 am -
2 stops20h 54m
Mon 10/196:00 am -
2 stops19h 35m
Deal found 9/10![Multiple Airlines logo]()
$960
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/151:50 pm -
2 stops14h 38m
Mon 10/192:32 pm -
1 stop11h 23m
Deal found 9/10![United Airlines logo]()
$1,040
This Expedia deal was found by Cheapflights users on 9/8. 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.
Tue 10/2011:20 am -
2 stops17h 34m
Mon 10/265:50 am -
2 stops21h 20m
Deal found 9/8![Multiple Airlines logo]()
$949
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/2012:10 pm -
2 stops16h 18m
Mon 10/265:50 am -
1 stop10h 45m
Deal found 9/8![United Airlines logo]()
$1,019
This Expedia deal was found by Cheapflights users on 9/8. 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.
Tue 10/2012:00 pm -
1 stop11h 12m
Mon 10/2610:50 am -
1 stop15h 30m
Deal found 9/8![Austrian Airlines logo]()
$1,041
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sun 10/254:40 pm -
2 stops34h 41m
Sun 11/15:08 pm -
1 stop33h 47m
Deal found 9/10![United Airlines logo]()
$1,045
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 10/269:00 am -
2 stops18h 59m
Mon 11/27:35 pm -
2 stops20h 00m
Deal found 9/11![United Airlines logo]()
$998
One-way flights from Heathrow to PortlandSearch for one-way flight options from Heathrow to Portland. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
Search for one-way flight options from Heathrow to Portland. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1012:15 pm -
2 stops25h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$537
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:35 pm -
2 stops41h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$539
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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.
Wed 11/117:25 am -
1 stop21h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![JetBlue logo]()
$544
This FlightHub deal was found by Cheapflights users on 9/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:25 am -
1 stop21h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![JetBlue logo]()
$552
This JetBlue deal was found by Cheapflights users on 9/11. 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.
Sun 11/812:20 pm -
1 stop16h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![JetBlue logo]()
$556
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Sat 10/108:15 am -
1 stop20h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![JetBlue logo]()
$558
This deal was found by Cheapflights users on 9/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:10 pm -
1 stop13h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$563
This Expedia deal was found by Cheapflights users on 9/12. 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.
Tue 10/277:25 am -
1 stop20h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![JetBlue logo]()
$564
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:35 am -
2 stops31h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$582
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:35 pm -
2 stops41h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$584
Find 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 September 12, 2026.
Round-trip from | $841 (Scandinavian Airlines) |
|---|---|
One-way from | $537 (Kiwi.com) |
Popular in | September |
Cheapest in | November |
Average price | $2,104 |
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 7,457,451 searches. Data last updated September 12, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
LondonPortland
LHR London Heathrow - PWM Portland
LHRPWM
London Heathrow
Fri 11/13
12:20 pm-11:43 pm
1 stop16h 23m
Portland
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$556
LondonPortland
LHR London Heathrow - PWM Portland
LHRPWM
London Heathrow
Mon 11/9
12:20 pm-11:43 pm
1 stop16h 23m
Portland
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$556
LondonPortland
LHR London Heathrow - PWM Portland
LHRPWM
London Heathrow
Sat 11/14
12:20 pm-11:43 pm
1 stop16h 23m
Portland
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$556
LondonPortland
LHR London Heathrow - PWM Portland
LHRPWM
London Heathrow
Sat 10/10
8:15 am-11:54 pm
1 stop20h 39m
Portland
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$558
LondonPortland
LHR London Heathrow - PWM Portland
LHRPWM
London Heathrow
Tue 10/27
12:15 pm-9:08 am
2 stops24h 53m
Portland
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$667
LondonPortland
LHR London Heathrow - PWM Portland
LHRPWM
London Heathrow
Thu 12/3
6:30 am-11:53 pm
2 stops22h 23m
Portland
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$733
LondonPortland
LHR London Heathrow - PWM Portland
LHRPWM
London Heathrow
Thu 11/26
3:40 pm-11:56 am
1 stop25h 16m
Portland
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$734
LondonPortland
LHR London Heathrow - PWM Portland
LHRPWM
London Heathrow
Fri 12/4
3:40 pm-11:53 am
1 stop25h 13m
Portland
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$736
LondonPortland
LHR London Heathrow - PWM Portland
LHRPWM
London Heathrow
Thu 12/3
3:40 pm-11:53 am
1 stop25h 13m
Portland
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$736
LondonPortland
LHR London Heathrow - PWM Portland
LHRPWM
London Heathrow
Thu 12/3
6:40 am-12:21 am
2 stops22h 41m
Portland
Sun 12/6
6:00 am-6:30 pm
2 stops31h 30m
$842
Showing 1-10 of 15 resultsSorted by cheapest first
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.
LHR-PWM
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.
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.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsNorth Conway
Lewiston
Brunswick
Conway
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