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Cheap flights from Portland, Maine to London from $486

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 4/15. 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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0 bags

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Find the cheapest flights from Portland, Maine to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
2:51 pm - 9:25 am
PWM
-
LGW
13h 34m
2 stops
Delta Logo
10:25 am - 12:43 am
LGW
-
PWM
19h 18m
2 stops
$771Delta
Wed, May 6 - Mon, May 11
Multiple Airlines Logo
6:00 am - 10:25 pm
PWM
-
LGW
35h 25m
2 stops
Multiple Airlines Logo
7:00 am - 11:36 pm
LGW
-
PWM
21h 36m
2 stops
$835Multiple Airlines
Wed, May 6 - Mon, May 11
Multiple Airlines Logo
10:57 am - 10:00 am
PWM
-
LGW
18h 03m
1 stop
Multiple Airlines Logo
2:00 pm - 10:49 am
LGW
-
PWM
49h 49m
2 stops
$920Multiple Airlines
Wed, Apr 1 - Wed, Apr 8
Multiple Airlines Logo
10:57 am - 10:00 am
PWM
-
LGW
18h 03m
1 stop
Multiple Airlines Logo
2:00 pm - 10:49 am
LGW
-
PWM
49h 49m
2 stops
$967Multiple Airlines
Wed, Apr 1 - Wed, Apr 15
Multiple Airlines Logo
10:57 am - 10:00 am
PWM
-
LGW
18h 03m
1 stop
Multiple Airlines Logo
1:05 pm - 5:45 pm
LGW
-
PWM
33h 40m
2 stops
$977Multiple Airlines
Sat, May 2 - Tue, May 5
Multiple Airlines Logo
2:25 pm - 11:45 am
PWM
-
LGW
16h 20m
2 stops
Multiple Airlines Logo
3:40 pm - 1:24 pm
LGW
-
PWM
50h 44m
2 stops
$989Multiple Airlines
Mon, Jun 1 - Fri, Jun 5
Multiple Airlines Logo
6:00 am - 3:35 pm
PWM
-
LGW
28h 35m
2 stops
Multiple Airlines Logo
5:00 pm - 2:11 pm
LGW
-
PWM
26h 11m
2 stops
$998Multiple Airlines
Mon, Apr 13 - Mon, Apr 20
Multiple Airlines Logo
9:52 am - 10:00 am
PWM
-
LGW
19h 08m
1 stop
Multiple Airlines Logo
2:00 pm - 9:12 am
LGW
-
PWM
24h 12m
1 stop
$1,018Multiple Airlines
Mon, Jun 1 - Fri, Jun 5
Multiple Airlines Logo
7:56 pm - 10:00 am
PWM
-
LGW
33h 04m
2 stops
Multiple Airlines Logo
2:00 pm - 9:12 am
LGW
-
PWM
24h 12m
1 stop
$1,023Multiple Airlines
Thu, Jun 11 - Sun, Jun 14
Multiple Airlines Logo
9:52 am - 10:00 am
PWM
-
LGW
19h 08m
1 stop
Multiple Airlines Logo
2:00 pm - 4:16 pm
LGW
-
PWM
31h 16m
2 stops
$1,048Multiple Airlines
Mon, Jun 1 - Fri, Jun 5

Delta flights from Portland, Maine to London Gatwick Airport

Our best Delta deals on Portland, Maine to London Gatwick Airport flight tickets
Delta
May 6
PWM2:51 pmPortland
13h 34m
2 stops
LGW9:25 amLondon Gatwick
May 11
LGW10:25 amLondon Gatwick
19h 18m
2 stops
PWM12:43 amPortland
$771
Delta
May 2
PWM4:43 pmPortland
18h 17m
2 stops
LGW4:00 pmLondon Gatwick
May 5
LGW10:35 amLondon Gatwick
17h 48m
2 stops
PWM11:23 pmPortland
$1,099
Delta
Apr 12
PWM4:48 pmPortland
18h 02m
2 stops
LGW3:50 pmLondon Gatwick
Apr 19
LGW10:25 amLondon Gatwick
17h 58m
2 stops
PWM11:23 pmPortland
$1,103

Turkish Airlines flights from Portland, Maine to London Gatwick Airport

Our best Turkish Airlines deals on Portland, Maine to London Gatwick Airport flight tickets
Turkish Airlines
Apr 29
PWM7:28 amPortland
28h 12m
2 stops
LGW4:40 pmLondon Gatwick
May 3
LGW7:00 amLondon Gatwick
21h 36m
2 stops
PWM11:36 pmPortland
$867
Turkish Airlines
Apr 30
PWM7:28 amPortland
33h 57m
2 stops
LGW10:25 pmLondon Gatwick
May 3
LGW7:00 amLondon Gatwick
21h 36m
2 stops
PWM11:36 pmPortland
$1,081
Turkish Airlines
May 6
PWM6:00 amPortland
46h 55m
2 stops
LGW9:55 amLondon Gatwick
May 13
LGW7:00 amLondon Gatwick
21h 36m
2 stops
PWM11:36 pmPortland
$1,094

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to London Gatwick Airport 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, momondo users made 832,500 searches. Data last updated February 28, 2026.
Use the filters below to find and compare flights from Portland, Maine to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandLondon

PWM - LGW

PWMLGW

Portland

Wed 5/6

2:51 pm-9:25 am

2 stops13h 34m

London Gatwick

Mon 5/11

10:25 am-12:43 am

2 stops19h 18m

$771

PortlandLondon

PWM - LGW

PWMLGW

Portland

Wed 5/6

6:00 am-10:25 pm

2 stops35h 25m

London Gatwick

Mon 5/11

7:00 am-11:36 pm

2 stops21h 36m

$835

PortlandLondon

PWM - LGW

PWMLGW

Portland

Wed 4/1

10:57 am-10:00 am

1 stop18h 03m

London Gatwick

Wed 4/8

2:00 pm-10:49 am

2 stops49h 49m

$920

PortlandLondon

PWM - LGW

PWMLGW

Portland

Wed 4/1

10:57 am-10:00 am

1 stop18h 03m

London Gatwick

Wed 4/15

2:00 pm-10:49 am

2 stops49h 49m

$967

PortlandLondon

PWM - LGW

PWMLGW

Portland

Sat 5/2

10:57 am-10:00 am

1 stop18h 03m

London Gatwick

Tue 5/5

1:05 pm-5:45 pm

2 stops33h 40m

$977

PortlandLondon

PWM - LGW

PWMLGW

Portland

Mon 6/1

2:25 pm-11:45 am

2 stops16h 20m

London Gatwick

Fri 6/5

3:40 pm-1:24 pm

2 stops50h 44m

$989

PortlandLondon

PWM - LGW

PWMLGW

Portland

Mon 4/13

6:00 am-3:35 pm

2 stops28h 35m

London Gatwick

Mon 4/20

5:00 pm-2:11 pm

2 stops26h 11m

$998

PortlandLondon

PWM - LGW

PWMLGW

Portland

Mon 6/1

9:52 am-10:00 am

1 stop19h 08m

London Gatwick

Fri 6/5

2:00 pm-9:12 am

1 stop24h 12m

$1,018

PortlandLondon

PWM - LGW

PWMLGW

Portland

Thu 6/11

7:56 pm-10:00 am

2 stops33h 04m

London Gatwick

Sun 6/14

2:00 pm-9:12 am

1 stop24h 12m

$1,023

PortlandLondon

PWM - LGW

PWMLGW

Portland

Mon 6/1

9:52 am-10:00 am

1 stop19h 08m

London Gatwick

Fri 6/5

2:00 pm-4:16 pm

2 stops31h 16m

$1,048

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to London from

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

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 day to depart on your flight to London Gatwick Airport?

The cheapest day to depart from Portland, Maine to London Gatwick Airport is on a Thursday when prices can be found for as low as $490. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to London Gatwick Airport on Monday is $607.

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

Flying to London Gatwick Airport from Portland, Maine in the evening is the least expensive time of day to depart. momondo users have found prices as low as $540 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to London Gatwick Airport, so prices are often more expensive at around $990 per ticket.

When to book flights from Portland, Maine to London Gatwick Airport

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

Cheap Portland, Maine to London Gatwick Airport (PWM to LGW) flight deals and tips

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

Fastest flight time

13h 45m

Direct flights

None
The fastest flight from Portland, Maine to London Gatwick Airport takes 13h 45m
There are no direct flights from Portland, Maine to London Gatwick Airport. There are no popular flight routes from Portland, Maine to London Gatwick Airport.
Search flight deals

  • How far is Portland to London Gatwick by plane?

    The straight-line distance from Portland to London Gatwick is 3188.8 mi. A reasonable flight in good conditions will take 13h 45m.

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

    Prices for flights from Portland Airport to London Gatwick Airport are updated daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to London Gatwick Airport.

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

    The necessary travel and health documents for your London Gatwick Airport 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.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Luton
Dover
Slough
Crawley
Hayes
Wembley
Dartford
Brentwood
Croydon
Guildford
Harrow
Watford
Cobham
Folkestone
Romford
Stansted
Richmond

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to London. momondo saves you time and could save you money on your trip.

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

Flights from Portland to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Portland and alert you when they change.

An easier way to manage your London Gatwick Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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