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Cheap flights from Heathrow (LHR) to Portland (PWM) from $759

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 11/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LHR — PWM
May 26 — Jun 21
From?
To?
Sun 5/26
Sun 6/2
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 May 21, 2024.

Popular in

December

Cheapest in

February

Average price

$716

Round-trip from

$293
High demand for flights, 32% potential price rise
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Best time to find cheap flights, 19% potential price drop
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Average for round-trip flights in May 2024
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From London Heathrow to Portland
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How far in advance should I book a flight from London Heathrow Airport to Portland, Maine?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 52 days in advance, which can save you up to 9% on flights from London Heathrow Airport to Portland, Maine compared to booking the week you need them. Waiting 52 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $706. For sooner than that we have options available in the next 3 days from $870.

What is the cheapest month to fly from London Heathrow Airport to Portland, Maine?

Flights from London Heathrow Airport to Portland, Maine lean towards being more expensive in December. Prices are generally better when you fly from London Heathrow Airport to Portland, Maine in February, with the cheapest ticket starting at $639.

When is the cheapest time to fly from London Heathrow Airport to Portland, Maine (LHR - PWM)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Portland, Maine as you normally would.

Cheap Finnair flights from Heathrow to Portland

Explore cheap flight options specifically provided by Finnair for the route between Heathrow and Portland. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,663,308 searches. Data last updated May 21, 2024.
Take a look at some of the lowest-priced Finnair flights heading from London to Portland. It's recommended that users confirm their flight details before booking.
Mon 10/219:45 amLHR - PWM
1 stop17h 29mFinnair
Sat 11/27:10 amPWM - LHR
1 stop11h 30mFinnair
Deal found 5/21$885
Mon 10/211:40 pmLHR - PWM
1 stop13h 34mFinnair
Sat 11/27:10 amPWM - LHR
1 stop11h 30mFinnair
Deal found 5/20$917
Thu 8/159:45 amLHR - PWM
1 stop15h 45mFinnair
Sat 9/75:13 pmPWM - LHR
1 stop13h 57mFinnair
Deal found 5/20$1,139
Sat 6/11:00 pmLHR - PWM
1 stop14h 41mFinnair
Sun 6/304:00 pmPWM - LHR
1 stop12h 05mFinnair
Deal found 5/20$1,232
Thu 8/151:00 pmLHR - PWM
1 stop12h 30mFinnair
Sat 8/1711:19 amPWM - LHR
1 stop29h 21mFinnair
Deal found 5/20$1,337

Cheap United Airlines flights from Heathrow to Portland

Explore cheap flight options specifically provided by United Airlines for the route between Heathrow and Portland. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,663,308 searches. Data last updated May 21, 2024.
To aid your search, here are some of the cheapest United Airlines flights we've found from London to Portland. Deals are refreshing constantly so come back soon for more options.
Thu 11/146:30 amLHR - PWM
2 stops17h 20mUnited Airlines
Mon 11/185:30 amPWM - LHR
1 stop20h 10mUnited Airlines
Deal found 5/19$759
Thu 11/1412:00 pmLHR - PWM
1 stop11h 50mUnited Airlines
Mon 11/181:54 pmPWM - LHR
1 stop11h 46mUnited Airlines
Deal found 5/19$767
Mon 10/216:50 amLHR - PWM
2 stops22h 09mUnited Airlines
Sat 11/29:30 amPWM - LHR
1 stop18h 25mUnited Airlines
Deal found 5/20$909
Mon 10/216:50 amLHR - PWM
2 stops17h 56mUnited Airlines
Sat 11/24:30 pmPWM - LHR
1 stop33h 25mUnited Airlines
Deal found 5/21$910
Thu 8/158:30 amLHR - PWM
2 stops16h 15mUnited Airlines
Sat 9/76:00 amPWM - LHR
1 stop9h 40mUnited Airlines
Deal found 5/20$1,214
Sat 6/16:50 amLHR - PWM
2 stops18h 19mUnited Airlines
Sun 6/304:50 pmPWM - LHR
1 stop32h 05mUnited Airlines
Deal found 5/20$1,340

Cheap Heathrow to Portland flights in May & June 2024

Find cheap flight options from Heathrow to Portland specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,663,308 searches. Prices were last updated on May 21, 2024.
These are some of the most attractive deals on flights from London to Portland in 2024. More deals are always being added, so be sure to check back regularly.
Thu 6/2712:30 pmLHR - PWM
1 stop15h 05mFinnair
Fri 7/54:55 pmPWM - LHR
1 stop12h 55mFinnair
Deal found 5/21$904
Thu 6/278:00 amLHR - PWM
1 stop10h 51mUnited Airlines
Fri 7/511:35 amPWM - LHR
2 stops14h 10mUnited Airlines
Deal found 5/21$957
Thu 6/279:35 amLHR - PWM
2 stops18h 00mAmerican Airlines
Fri 7/511:40 amPWM - LHR
2 stops14h 00mAmerican Airlines
Deal found 5/21$1,005
Thu 6/2712:30 pmLHR - PWM
1 stop15h 05mFinnair
Thu 8/811:19 amPWM - LHR
1 stop14h 01mFinnair
Deal found 5/21$1,085
Thu 6/278:00 amLHR - PWM
1 stop10h 51mUnited Airlines
Thu 8/83:51 pmPWM - LHR
2 stops14h 54mUnited Airlines
Deal found 5/21$1,176
Sat 6/11:00 pmLHR - PWM
1 stop31h 11mFinnair
Sun 6/3012:29 pmPWM - LHR
1 stop28h 41mFinnair
Deal found 5/21$1,191
Thu 6/279:55 amLHR - PWM
2 stops19h 29mDelta
Thu 8/812:55 pmPWM - LHR
2 stops13h 55mDelta
Deal found 5/21$1,213
Sat 6/11:00 pmLHR - PWM
1 stop14h 41mFinnair
Sun 6/304:00 pmPWM - LHR
1 stop12h 05mFinnair
Deal found 5/20$1,232
Sat 6/16:50 amLHR - PWM
2 stops18h 19mUnited Airlines
Sun 6/304:50 pmPWM - LHR
1 stop32h 05mUnited Airlines
Deal found 5/20$1,340

Heathrow to Portland 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and Portland in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,663,308 searches. Data last updated May 21, 2024.
These are some of the most attractive deals on flights from London to Portland in 2024. More deals are always being added, so be sure to check back regularly.
Thu 11/146:30 amLHR - PWM
2 stops17h 20mUnited Airlines
Mon 11/185:30 amPWM - LHR
1 stop20h 10mUnited Airlines
Deal found 5/19$759
Thu 11/1412:00 pmLHR - PWM
1 stop11h 50mUnited Airlines
Mon 11/181:54 pmPWM - LHR
1 stop11h 46mUnited Airlines
Deal found 5/19$767
Mon 10/2112:40 pmLHR - PWM
2 stops48h 10mAir Canada
Sat 11/23:15 pmPWM - LHR
2 stops49h 20mAir Canada
Deal found 5/20$827
Mon 10/219:45 amLHR - PWM
1 stop17h 29mFinnair
Sat 11/27:10 amPWM - LHR
1 stop11h 30mFinnair
Deal found 5/21$885
Thu 6/2712:30 pmLHR - PWM
1 stop15h 05mFinnair
Fri 7/54:55 pmPWM - LHR
1 stop12h 55mFinnair
Deal found 5/21$904
Mon 10/216:50 amLHR - PWM
2 stops22h 09mUnited Airlines
Sat 11/29:30 amPWM - LHR
1 stop18h 25mUnited Airlines
Deal found 5/20$909
Mon 10/216:50 amLHR - PWM
2 stops17h 56mUnited Airlines
Sat 11/24:30 pmPWM - LHR
1 stop33h 25mUnited Airlines
Deal found 5/21$910
Mon 10/211:40 pmLHR - PWM
1 stop13h 34mFinnair
Sat 11/27:10 amPWM - LHR
1 stop11h 30mFinnair
Deal found 5/20$917
Thu 11/141:25 pmLHR - PWM
2 stops26h 23mAir Canada
Mon 11/186:00 amPWM - LHR
2 stops20h 10mAir Canada
Deal found 5/19$933

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 2,663,308 searches. Data last updated May 21, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$759 - $1,696

Route

Depart

Return

Price

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 11/14

2 stops17h 20m

Portland

Mon 11/18

1 stop20h 10m

$759

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 11/14

1 stop11h 50m

Portland

Mon 11/18

1 stop11h 46m

$767

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 10/21

2 stops48h 10m

Portland

Sat 11/2

2 stops49h 20m

$827

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 10/21

1 stop17h 29m

Portland

Sat 11/2

1 stop11h 30m

$885

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 10/21

1 stop13h 34m

Portland

Sat 11/2

1 stop11h 30m

$917

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 8/15

2 stops32h 20m

Portland

Sat 8/17

2 stops26h 50m

$1,389

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 9/6

1 stop14h 44m

Portland

Fri 9/27

2 stops19h 15m

$1,417

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 9/6

1 stop14h 44m

Portland

Fri 9/27

1 stop10h 20m

$1,507

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 8/15

2 stops27h 00m

Portland

Sat 8/17

1 stop19h 20m

$1,696

Flights are sorted by cheapest first

Deals found on 5/19

When is the best time to book a flight from London Heathrow Airport to Portland, Maine?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Portland. Price data was last updated on May 10, 2024.
The price you pay for your flight from London Heathrow Airport to Portland, Maine may vary depending on when you book. For the best chance of a lower fare, look to book 44 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

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.

Temperature and rainfall in Portland by month

Plan your trip to Portland by taking into account the average temperature and rainfall totals by month.

PWM

Temperature

23 - 68 °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 May 21, 2024.
See what other customers who have flown with Finnair, United Airlines and Delta 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
10,595 reviews
Check prices

Food

7.4

Boarding

8.2

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,595 reviews
Delta
8.0
Very good
10,595 reviews
Check prices

Food

7.4

Boarding

8.2

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Finnair
7.8
Good
1,370 reviews
Delta
8.0
Very good
10,595 reviews
Check prices

Food

7.4

Boarding

8.2

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Virgin Atlantic
7.7
Good
730 reviews
Delta
8.0
Very good
10,595 reviews
Check prices

Food

7.4

Boarding

8.2

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

JetBlue
7.6
Good
4,426 reviews
Delta
8.0
Very good
10,595 reviews
Check prices

Food

7.4

Boarding

8.2

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,884 reviews
Delta
8.0
Very good
10,595 reviews
Check prices

Food

7.4

Boarding

8.2

Entertainment

8.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

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.

  • Can I find flights from London Heathrow Airport to Portland, Maine for under $800 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to Portland, Maine for under $800. The cheapest flight booked recently is on United Airlines for just $759, but on average you can expect to pay $1,190.

  • 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 $759. Other airlines that can offer you cheap pricing are Air Canada, from $827, and Finnair, from $885. You may be able to fly from London Heathrow Airport to Portland, Maine for 11% less than the average price by searching for these airlines.

  • What does LHR to PWM mean?

    LHR stands for London Heathrow Airport, while PWM stands for Portland Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Heathrow to Portland that include extra baggage allowance?

    The amount of baggage you can bring on your Heathrow to Portland flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Heathrow to Portland with specific airlines?

    Yes, Cheapflights allows you to browse and filter Heathrow to Portland flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by 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.

  • Can I find deals for flights from Heathrow to Portland that allow pets onboard?

    Many airlines flying from Heathrow to Portland offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Heathrow to Portland?

    Yes, you can often find last-minute deals on Heathrow to Portland flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London Heathrow Airport to Portland, Maine flight deals updated?

    The London Heathrow Airport to Portland, Maine flight deals you see on this page were last updated on 5/21.

  • When is the best time 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 $293). Flying from London Heathrow Airport to Portland, Maine in April is currently the most expensive (average of $498). 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.

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See prices for flight routes from nearby airports that may be better suited for you.

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Search flights from Heathrow to Portland by cabin class

Find flights from Heathrow to Portland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Portland?

When you search for this flight from Heathrow to Portland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Portland?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Portland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Heathrow to Portland with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Portland flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Heathrow to Portland become cheaper?

Yes, Cheapflights offers price alerts on Heathrow to Portland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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