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Cheap flights from London to Portland from £642

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 20/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — PWM
28 Jul — 4 Aug1
1 adult
Sun 28/7
Sun 4/8

Cheap flight deals from London to Portland

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 23 July 2024.

Round-trip from

£645

One-way from

£642

Popular in

December

Cheapest in

February
Air Canada
  • Air Canada
  • 21/10-2/11
  • 4 total stops
  • 70h 40m total
  • London to Portland
20/8
  • 20/8
  • 3 total stops
  • 45h 43m total
  • London to Portland
High demand for flights, 24% potential price rise
Best time to find cheap flights, 18% potential price drop

What is the cheapest day to fly round-trip from London to Portland, Maine?

Saturday flights are generally found to be more expensive for flights from London to Portland, Maine. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Portland, Maine.

How far in advance should I book a flight from London to Portland, Maine?

Travelers have found it’s best to book a flight 13 days in advance to save up to 13% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 13 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London to Portland, Maine 1-2 weeks in advance for as low as £481, or £696 for flights within the next 24 hours.

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

The best pricing can be found in the month of February. Prices to Portland, Maine from London average £666. You can even find prices in February for less than £666, as users have found deals to Portland, Maine from as low as £488. The month of December appears to be one of the more expensive times to travel to Portland, Maine from London. Flying in the targeted month can save you up to 30%.

What is the cheapest time of day to fly from LON to PWM?

It’s typically best to fly out from London to Portland, Maine at midday. Doing so could potentially save you 9% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap Air Canada flights from London to Portland

Explore cheap flight options specifically provided by Air Canada for the route between London 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 967,456 searches. Data last updated 23 July 2024.
Take a peek at the cheapest Air Canada flights we've detected travelling from London to Portland. Make sure to check back often as deals are often changing.
Mon 21/1014:05LHR - PWM
2 stops22h 45mAir Canada
Sat 2/1116:40PWM - LHR
2 stops47h 55mAir Canada
Deal found 21/7£645
Mon 21/1014:05LHR - PWM
2 stops22h 45mAir Canada
Sat 2/1116:40PWM - LHR
2 stops47h 55mAir Canada
Deal found 22/7£647
Tue 20/806:00LHR - PWM
3 stops20h 10mAir Canada
Tue 27/811:28PWM - LHR
3 stops17h 32mAir Canada
Deal found 21/7£1,410
Wed 21/818:00LHR - PWM
3 stops22h 31mAir Canada
Wed 28/812:28PWM - LHR
3 stops16h 32mAir Canada
Deal found 21/7£1,803

Cheap Lufthansa flights from London to Portland

Explore cheap flight options specifically provided by Lufthansa for the route between London 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 967,456 searches. Data last updated 23 July 2024.
Browse through some of the cheapest Lufthansa flights travelling from London to Portland. Deals frequently update to provide users with more options.
Mon 21/1008:00LHR - PWM
1 stop11h 31mLufthansa
Sat 2/1116:40PWM - LHR
2 stops33h 50mLufthansa
Deal found 21/7£707
Mon 21/1008:30LHR - PWM
1 stop18h 01mLufthansa
Sat 2/1106:00PWM - LHR
1 stop19h 55mLufthansa
Deal found 21/7£718
Mon 21/1009:30LHR - PWM
1 stop14h 14mLufthansa
Sat 2/1119:27PWM - LHR
1 stop31h 13mLufthansa
Deal found 22/7£719

Cheap London to Portland flights in July & August 2024

Find cheap flight options from London to Portland specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 967,456 searches. Prices were last updated on 23 July 2024.
Scroll through some of the best deals on flights from London to Portland in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 20/807:25LHR - PWM
1 stop16h 49mJetBlue
Tue 27/806:10PWM - LHR
1 stop9h 35mJetBlue
Deal found 21/7£902
Tue 20/811:45LHR - PWM
2 stops17h 25mDelta
Tue 27/805:03PWM - LHR
1 stop10h 07mDelta
Deal found 21/7£923
Tue 20/811:45LHR - PWM
2 stops17h 25mDelta
Tue 27/814:09PWM - LHR
2 stops15h 36mDelta
Deal found 21/7£938
Tue 20/806:45LHR - PWM
3 stops21h 41mMultiple Airlines
Tue 27/806:15PWM - LHR
2 stops19h 15mMultiple Airlines
Deal found 21/7£952
Wed 21/807:30LHR - PWM
2 stops16h 44mMultiple Airlines
Wed 28/810:10PWM - LHR
2 stops18h 30mMultiple Airlines
Deal found 21/7£977
Wed 21/808:30LHR - PWM
2 stops20h 29mUnited Airlines
Wed 28/815:55PWM - LHR
1 stop10h 20mUnited Airlines
Deal found 21/7£994
Wed 21/815:50LHR - PWM
3 stops24h 41mMultiple Airlines
Wed 28/811:28PWM - LHR
2 stops14h 02mMultiple Airlines
Deal found 21/7£1,359
Tue 20/806:00LHR - PWM
3 stops20h 10mAir Canada
Tue 27/811:28PWM - LHR
3 stops17h 32mAir Canada
Deal found 21/7£1,410
Mon 22/714:25LHR - PWM
1 stop26h 09mFinnair
Thu 25/706:00PWM - LHR
1 stop20h 45mFinnair
Deal found 21/7£1,603

London to Portland 2024 flight deals

Discover exclusive flight deals for travel between London and Portland in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 967,456 searches. Data last updated 23 July 2024.
Scroll through some of the best deals on flights from London to Portland in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Mon 21/1014:05LHR - PWM
2 stops22h 45mAir Canada
Sat 2/1116:40PWM - LHR
2 stops47h 55mAir Canada
Deal found 21/7£645
Mon 21/1014:05LHR - PWM
2 stops22h 45mAir Canada
Sat 2/1116:40PWM - LHR
2 stops47h 55mAir Canada
Deal found 22/7£647
Mon 21/1008:00LHR - PWM
1 stop11h 31mLufthansa
Sat 2/1116:40PWM - LHR
2 stops33h 50mLufthansa
Deal found 21/7£707
Mon 21/1006:50LHR - PWM
2 stops22h 09mUnited Airlines
Sat 2/1119:27PWM - LHR
1 stop31h 13mUnited Airlines
Deal found 22/7£714
Mon 21/1008:30LHR - PWM
1 stop18h 01mLufthansa
Sat 2/1106:00PWM - LHR
1 stop19h 55mLufthansa
Deal found 21/7£718
Mon 21/1009:30LHR - PWM
1 stop14h 14mLufthansa
Sat 2/1119:27PWM - LHR
1 stop31h 13mLufthansa
Deal found 22/7£719
Tue 20/807:25LHR - PWM
1 stop16h 49mJetBlue
Tue 27/806:10PWM - LHR
1 stop9h 35mJetBlue
Deal found 21/7£902
Tue 20/811:45LHR - PWM
2 stops17h 25mDelta
Tue 27/805:03PWM - LHR
1 stop10h 07mDelta
Deal found 21/7£923
Tue 20/811:45LHR - PWM
2 stops17h 25mDelta
Tue 27/814:09PWM - LHR
2 stops15h 36mDelta
Deal found 21/7£938

One-way flights to Portland from London

Search for one-way flight options from London to Portland. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 967,456 searches. Data last updated 23 July 2024.
Take a look at some of the one-way flights we've detected from London to Portland. Those needing a return flight from London to Portland can use the search form above.
Tue 20/819:30LHR - PWM
3 stops45h 43mMultiple Airlines
Deal found 22/7£642
Tue 20/814:10LHR - PWM
2 stops38h 16mWestJet
Deal found 22/7£843
Tue 20/807:25LHR - PWM
1 stop16h 49mJetBlue
Deal found 22/7£892
Sat 24/807:25LHR - PWM
1 stop16h 49mJetBlue
Deal found 22/7£922
Sat 24/806:00LHR - PWM
2 stops32h 21mTAP AIR PORTUGAL
Deal found 21/7£1,116
Sat 24/806:00LHR - PWM
2 stops32h 21mTAP AIR PORTUGAL
Deal found 22/7£1,127
Sat 24/811:25LHR - PWM
2 stops26h 56mMultiple Airlines
Deal found 21/7£1,161
Sat 24/806:00LHR - PWM
3 stops20h 10mAir Canada
Deal found 21/7£2,511
Sat 24/818:00LHR - PWM
3 stops22h 31mAir Canada
Deal found 22/7£2,520

Find flights from London to Portland within your budget

Customise your flight search to find flights from London 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 967,456 searches. Data last updated 23 July 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£645 - £1,142

Route

Depart

Return

Price

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 21/10

2 stops22h 45m

Portland

Sat 2/11

2 stops47h 55m

£645

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 21/10

2 stops22h 45m

Portland

Sat 2/11

2 stops47h 55m

£647

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 21/10

1 stop11h 31m

Portland

Sat 2/11

2 stops33h 50m

£707

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 21/10

2 stops22h 09m

Portland

Sat 2/11

1 stop31h 13m

£714

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 21/10

1 stop18h 01m

Portland

Sat 2/11

1 stop19h 55m

£718

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 20/8

1 stop16h 49m

Portland

Tue 27/8

1 stop9h 35m

£902

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 20/8

2 stops17h 25m

Portland

Tue 27/8

1 stop10h 07m

£923

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Tue 20/8

3 stops21h 41m

Portland

Tue 27/8

2 stops19h 15m

£952

London HeathrowPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 6/9

1 stop16h 15m

Portland

Fri 27/9

1 stop12h 13m

£1,142

Flights are sorted by cheapest first

Deals found on 21/7

How far ahead should I book a flight from London to Portland, Maine?

Use this chart to determine the optimal time to book a return flight from London to Portland. Price data was last updated on 19 July 2024.
The price you pay for your flight from London to Portland, Maine may vary depending on when you book. For the best chance of a lower fare, look to book 12 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

What is the cheapest day to fly from London to Portland, Maine?

Use this chart to determine the cheapest time to fly return from London to Portland. Price data was last updated on 21 July 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London to Portland, Maine flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from London to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from London with our price prediction graph.
Estimated return 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

-5 - 20 °C

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 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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 23 July 2024.
Read reviews from past customers who have flown Air Canada, Lufthansa and United Airlines from London to Portland. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
9,657 reviews

Entertainment

8.0

Food

7.4

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

8.0
Very Good
9,657 reviews
8.0
Very Good
9,657 reviews

Entertainment

8.0

Food

7.4

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.9
Good
1,416 reviews
8.0
Very Good
9,657 reviews

Entertainment

8.0

Food

7.4

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.6
Good
4,024 reviews
8.0
Very Good
9,657 reviews

Entertainment

8.0

Food

7.4

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.4
Good
10,000 reviews
8.0
Very Good
9,657 reviews

Entertainment

8.0

Food

7.4

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.4
Good
2,754 reviews
8.0
Very Good
9,657 reviews

Entertainment

8.0

Food

7.4

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Related info for your journey

Find useful and relevant information for your journey from London 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?

    If you book a flight to Portland from London, you will be flying to Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland. There are 0 flights from London to Portland per day from 6 different airlines.

  • Can I find flights from London to Portland, Maine for under £700 on Cheapflights?

    Yes, there are multiple flights from London to Portland, Maine for under £700. The cheapest flight booked recently is on Air Canada for just £645, but on average you can expect to pay £972.

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

    Currently priced at £645, Air Canada will fly you from London to Portland, Maine and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and United Airlines - these airlines can fly you to your destination from £707 and £714, respectively. Air Canada is 3% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapet airlines for a one-way flight from London to Portland, Maine are WestJet (£843), JetBlue (£892), and TAP AIR PORTUGAL (£1,116).

  • What does LHR to PWM mean?

    Great question - LHR to PWM just means London Heathrow Airport to Portland Airport. Now you’ll know what these unique codes when you look for flights! Ready for more IATA code knowledge? These are related airports for your current travel destination: London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN).

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

    The amount of baggage you can bring on your London 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 London to Portland with specific airlines?

    Yes, Cheapflights allows you to browse and filter London 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 London to Portland that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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 London to Portland that allow pets onboard?

    Many airlines flying from London 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 London to Portland?

    Yes, you can often find last-minute deals on London 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 to Portland, Maine flight deals updated?

    The London to Portland, Maine flight deals you see on this page were last updated on 22/7.

  • What are the most popular airlines that fly from London to Portland, Maine?

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

    Currently, January is the cheapest month in which you can book a flight from London to Portland, Maine (average of £696). Flying from London to Portland, Maine in July is currently the most expensive (average of £996). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from London to Portland

Discover the top 6 airlines that operate flights from London to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 967,456 searches. Data last updated 23 July 2024.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£505Average£608FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£512Average£571FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£523Average£691FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£539Average£712FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
JetBlueCheapest£578Average£768FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
DeltaCheapest£889Average£889FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Search flights from London to Portland by cabin class

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

Fly with Cheapflights

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

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

When you search for this flight from London 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 London to Portland?

Cheapflights helps you find that perfect flight to Portland from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to Portland from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Of course! You can now track prices for flights from London to Portland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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