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Cheap flights from Portland, Maine to London from £203

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to London departing on 21/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Portland, Maine to London

Cheap return flights

These are some of the best return flight deals from Portland, Maine to London that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Portland, Maine to London.

Cheap last-minute flights

Planning a quick getaway from Portland, Maine to London? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Portland, Maine to London

Find recent return train or bus tickets from Portland, Maine to London.

All return flight deals from Portland, Maine to London

The cheapest plane tickets from Portland, Maine to London found on KAYAK recently.
17:35 - 09:30PWM-LHR
10h 55m1 stop
08:15 - 16:40LHR-PWM
13h 25m1 stop
£476JetBlue
Find Deal
Mon, 31 Mar - Sun, 13 Apr
05:45 - 06:35PWM-LHR
19h 50m1 stop
09:50 - 22:57LHR-PWM
17h 07m2 stops
£579American Airlines
Find Deal
Wed, 5 Mar - Wed, 12 Mar
05:45 - 06:35PWM-LHR
19h 50m1 stop
13:10 - 22:57LHR-PWM
13h 47m1 stop
Wed, 5 Mar - Wed, 12 Mar
15:04 - 11:10PWM-LHR
15h 06m1 stop
17:35 - 14:22LHR-PWM
25h 47m2 stops
£606Delta
Find Deal
Mon, 17 Feb - Mon, 24 Feb
12:15 - 11:50PWM-LHR
18h 35m3 stops
09:00 - 23:15LHR-PWM
18h 15m3 stops
£614Air Canada
Find Deal
Wed, 5 Mar - Wed, 12 Mar
16:46 - 13:50PWM-LHR
16h 04m2 stops
17:35 - 14:22LHR-PWM
25h 47m2 stops
£624Delta
Find Deal
Mon, 17 Feb - Mon, 24 Feb
15:55 - 06:55PWM-LHR
10h 00m1 stop
12:05 - 23:15LHR-PWM
16h 10m2 stops
£631United Airlines
Find Deal
Mon, 17 Feb - Mon, 24 Feb
06:00 - 06:35PWM-LHR
19h 35m2 stops
14:05 - 23:27LHR-PWM
38h 22m2 stops
£634Air Canada
Find Deal
Mon, 31 Mar - Sun, 13 Apr
05:35 - 06:15PWM-LHR
19h 40m1 stop
13:10 - 22:41LHR-PWM
14h 31m1 stop
Mon, 17 Feb - Mon, 24 Feb
12:37 - 06:45PWM-LHR
13h 08m2 stops
12:15 - 19:07LHR-PWM
11h 52m1 stop
£696United Airlines
Find Deal
Thu, 15 May - Thu, 22 May
17:35 - 09:30PWM-LHR
10h 55m1 stop
£203JetBlue
Find Deal
Mon, 21 Apr
06:10 - 20:45PWM-LHR
9h 35m1 stop
£244JetBlue
Find Deal
Thu, 24 Apr
06:00 - 21:00PWM-LHR
34h 00m2 stops
£349Air Canada
Find Deal
Sun, 20 Apr
09:30 - 10:40PWM-LHR
20h 10m1 stop
£356United Airlines
Find Deal
Wed, 23 Apr
06:00 - 06:30PWM-LHR
19h 30m3 stops
£361Air Canada
Find Deal
Sun, 20 Apr
14:15 - 12:30PWM-LCY
17h 15m2 stops
£386United Airlines
Find Deal
Sun, 20 Apr
12:50 - 10:00PWM-LGW
16h 10m2 stops
£432Delta
Find Deal
Wed, 9 Jul
11:25 - 09:30PWM-LCY
17h 05m2 stops
£434Delta
Find Deal
Mon, 21 Apr
17:23 - 19:35PWM-LGW
45h 12m3 stops
Thu, 24 Apr
18:07 - 14:10PWM-LGW
39h 03m3 stops
Tue, 22 Apr

JetBlue flights from Portland, Maine to London

Our best JetBlue deals on Portland, Maine to London flight tickets
JetBlue
31 Mar
PWM17:35Portland
10h 55m
1 stop
LHR09:30London Heathrow
13 Apr
LHR08:15London Heathrow
13h 25m
1 stop
PWM16:40Portland
JetBlue
22 Jun
PWM06:10Portland
9h 35m
1 stop
LHR20:45London Heathrow
29 Jun
LHR11:55London Heathrow
16h 42m
1 stop
PWM23:37Portland
JetBlue
24 Apr
PWM06:10Portland
9h 35m
1 stop
LHR20:45London Heathrow
25 Apr
LHR08:15London Heathrow
13h 25m
1 stop
PWM16:40Portland

United Airlines flights from Portland, Maine to London

Our best United Airlines deals on Portland, Maine to London flight tickets
United Airlines
17 Feb
PWM15:55Portland
10h 00m
1 stop
LHR06:55London Heathrow
24 Feb
LHR12:05London Heathrow
16h 10m
2 stops
PWM23:15Portland
United Airlines
15 May
PWM12:37Portland
13h 08m
2 stops
LHR06:45London Heathrow
22 May
LHR12:15London Heathrow
11h 52m
1 stop
PWM19:07Portland
United Airlines
23 Mar
PWM06:01Portland
21h 09m
2 stops
LHR07:10London Heathrow
5 Apr
LHR12:40London Heathrow
15h 47m
2 stops
PWM23:27Portland

See travel insights to London from

How to get the cheapest flight ticket from Portland, Maine to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London?

The cheapest month to fly to London from Portland, Maine is in February. Flight prices, which tend to average around £523, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Portland, Maine averaging around £581.

What is the cheapest day to depart on your flight to London?

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £0. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Portland, Maine to London for around £604.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £0. Flights in the morning are often more expensive, with an average ticket price of £610.

When to book flights from Portland, Maine to London

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Portland, Maine to London (PWM to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to London

Best price found

£203

Fastest flight time

9h 35m

Direct flights

None

Airports in London

4 airports
The best one-way flight to London from Portland, Maine in the past 72 hours is £203. The best return flight deal from Portland, Maine to London found on momondo in the last 72 hours is £476.
The fastest flight from Portland, Maine to London takes 9h 35m
There are no direct flights from Portland, Maine to London. Popular non-direct routes for this connection are Portland Airport - London Heathrow Airport, Portland Airport - London Gatwick Airport and Portland Airport - London City Airport.
There are 4 airports near London: London City (LCY), London Heathrow (LHR), London Gatwick (LGW), London Southend (SEN)

  • How far is Portland to London by plane?

    A flight from Portland to London will travel around 3183.1 mi. Typically, this will take 9h 35m by plane in normal conditions.

  • When did momondo last update prices for flights from Portland Airport to London?

    Prices for flights from Portland Airport to London refresh daily.

  • How old do you have to be to fly from Portland Airport to London?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to London.

  • What documentation or ID do you need to fly to London?

    The necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.


Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Slough
Southend-on-Sea
Ipswich
Gatwick
Maidstone
Margate
Hounslow
Canterbury
Ilford
Colchester
Dartford
Winchester
Chichester
Bishop's Stortford
Guildford
Hayes
Crawley

Why use momondo?

Why should I use momondo to find a flight deal from Portland to London?

It is quick and easy to find Portland to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from Portland to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to London?

momondo helps you find the best flight between Portland and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Portland to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London