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Cheap flights from Portland, Maine to London from $309

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 7/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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.
Multiple Airlines Logo
8:14 pm - 10:00 am
PWM
-
LGW
32h 46m
1 stop
Multiple Airlines Logo
2:00 pm - 9:08 am
LGW
-
PWM
24h 08m
1 stop
$797Multiple Airlines
Thu, Sep 24 - Sun, Sep 27
Delta Logo
2:53 pm - 9:25 am
PWM
-
LGW
13h 32m
2 stops
Delta Logo
10:25 am - 12:59 am
LGW
-
PWM
19h 34m
2 stops
$879Delta
Tue, Aug 18 - Thu, Aug 27
Turkish Airlines Logo
6:00 am - 9:55 am
PWM
-
LGW
46h 55m
2 stops
Turkish Airlines Logo
5:35 pm - 11:52 pm
LGW
-
PWM
35h 17m
2 stops
$966Turkish Airlines
Thu, Oct 15 - Tue, Oct 20
Multiple Airlines Logo
1:17 pm - 2:40 pm
PWM
-
LGW
20h 23m
2 stops
Multiple Airlines Logo
1:00 pm - 12:14 am
LGW
-
PWM
16h 14m
2 stops
$1,043Multiple Airlines
Tue, Aug 18 - Thu, Aug 27
Delta Logo
2:59 pm - 9:25 am
PWM
-
LGW
13h 26m
2 stops
Delta Logo
10:25 am - 12:52 am
LGW
-
PWM
19h 27m
2 stops
$1,069Delta
Sun, Jun 14 - Mon, Jun 22
Delta Logo
2:59 pm - 9:25 am
PWM
-
LGW
13h 26m
2 stops
Delta Logo
10:25 am - 12:59 am
LGW
-
PWM
19h 34m
2 stops
$1,077Delta
Wed, Jul 15 - Wed, Jul 22
Delta Logo
2:59 pm - 9:25 am
PWM
-
LGW
13h 26m
2 stops
Delta Logo
10:25 am - 12:59 am
LGW
-
PWM
19h 34m
2 stops
$1,108Delta
Thu, Jul 16 - Thu, Jul 23
Multiple Airlines Logo
11:08 am - 10:00 am
PWM
-
LGW
17h 52m
1 stop
Multiple Airlines Logo
2:00 pm - 10:19 pm
LGW
-
PWM
37h 19m
2 stops
$1,114Multiple Airlines
Sat, Sep 12 - Sat, Sep 26
Multiple Airlines Logo
4:44 pm - 10:00 am
PWM
-
LGW
36h 16m
2 stops
Multiple Airlines Logo
2:00 pm - 10:27 am
LGW
-
PWM
25h 27m
1 stop
$1,129Multiple Airlines
Tue, Jun 30 - Tue, Jul 7
Turkish Airlines Logo
6:00 am - 9:55 am
PWM
-
LGW
46h 55m
2 stops
Turkish Airlines Logo
5:40 pm - 11:52 pm
LGW
-
PWM
35h 12m
2 stops
$1,140Turkish Airlines
Sat, Sep 12 - Sat, Sep 26

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
Oct 15
PWM6:00 amPortland
46h 55m
2 stops
LGW9:55 amLondon Gatwick
Oct 20
LGW5:35 pmLondon Gatwick
35h 17m
2 stops
PWM11:52 pmPortland
$966
Turkish Airlines
Sep 12
PWM6:00 amPortland
46h 55m
2 stops
LGW9:55 amLondon Gatwick
Sep 26
LGW5:40 pmLondon Gatwick
35h 12m
2 stops
PWM11:52 pmPortland
$1,140
Turkish Airlines
Jun 18
PWM6:00 amPortland
22h 55m
2 stops
LGW9:55 amLondon Gatwick
Jun 19
LGW5:35 pmLondon Gatwick
35h 50m
2 stops
PWM12:25 amPortland
$2,164

Delta flights from Portland, Maine to London Gatwick Airport

Our best Delta deals on Portland, Maine to London Gatwick Airport flight tickets
Delta
Sep 24
PWM2:35 pmPortland
13h 50m
2 stops
LGW9:25 amLondon Gatwick
Sep 27
LGW10:25 amLondon Gatwick
18h 34m
2 stops
PWM11:59 pmPortland
$879
Delta
Aug 18
PWM2:53 pmPortland
13h 32m
2 stops
LGW9:25 amLondon Gatwick
Aug 27
LGW10:25 amLondon Gatwick
19h 34m
2 stops
PWM12:59 amPortland
$909
Delta
Jun 14
PWM2:59 pmPortland
13h 26m
2 stops
LGW9:25 amLondon Gatwick
Jun 22
LGW10:25 amLondon Gatwick
19h 27m
2 stops
PWM12:52 amPortland
$1,069

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 June 4, 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

Cheapest round-trip

PortlandLondon

PWM - LGW

PWMLGW

Portland

Thu 9/24

8:14 pm-10:00 am

1 stop32h 46m

London Gatwick

Sun 9/27

2:00 pm-9:08 am

1 stop24h 08m

$797

PortlandLondon

PWM - LGW

PWMLGW

Portland

Tue 8/18

2:53 pm-9:25 am

2 stops13h 32m

London Gatwick

Thu 8/27

10:25 am-12:59 am

2 stops19h 34m

$879

PortlandLondon

PWM - LGW

PWMLGW

Portland

Thu 10/15

6:00 am-9:55 am

2 stops46h 55m

London Gatwick

Tue 10/20

5:35 pm-11:52 pm

2 stops35h 17m

$966

PortlandLondon

PWM - LGW

PWMLGW

Portland

Tue 8/18

1:17 pm-2:40 pm

2 stops20h 23m

London Gatwick

Thu 8/27

1:00 pm-12:14 am

2 stops16h 14m

$1,043
Quickest round-trip

PortlandLondon

PWM - LGW

PWMLGW

Portland

Sun 6/14

2:59 pm-9:25 am

2 stops13h 26m

London Gatwick

Mon 6/22

10:25 am-12:52 am

2 stops19h 27m

$1,069

PortlandLondon

PWM - LGW

PWMLGW

Portland

Wed 7/15

2:59 pm-9:25 am

2 stops13h 26m

London Gatwick

Wed 7/22

10:25 am-12:59 am

2 stops19h 34m

$1,077

PortlandLondon

PWM - LGW

PWMLGW

Portland

Thu 7/16

2:59 pm-9:25 am

2 stops13h 26m

London Gatwick

Thu 7/23

10:25 am-12:59 am

2 stops19h 34m

$1,108

PortlandLondon

PWM - LGW

PWMLGW

Portland

Sat 9/12

11:08 am-10:00 am

1 stop17h 52m

London Gatwick

Sat 9/26

2:00 pm-10:19 pm

2 stops37h 19m

$1,114

PortlandLondon

PWM - LGW

PWMLGW

Portland

Tue 6/30

4:44 pm-10:00 am

2 stops36h 16m

London Gatwick

Tue 7/7

2:00 pm-10:27 am

1 stop25h 27m

$1,129

PortlandLondon

PWM - LGW

PWMLGW

Portland

Sat 9/12

6:00 am-9:55 am

2 stops46h 55m

London Gatwick

Sat 9/26

5:40 pm-11:52 pm

2 stops35h 12m

$1,140

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 airline that flies from Portland to London Gatwick?

Delta is the most popular carrier operating from Portland to London Gatwick

What airlines fly to London Gatwick Airport?

JetBlue, Icelandair and British Airways are the top three most popular airlines that fly to London Gatwick Airport from Portland, Maine according to our data. JetBlue is the first choice among our users, with 65% of people opting to fly with this airline when traveling to London Gatwick Airport. Keep in mind that there are 3 different airlines that fly to London Gatwick Airport on a routine basis, so you have a few additional options to choose from.

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 26m

Direct flights

None
The fastest flight from Portland, Maine to London Gatwick Airport takes 13h 26m
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

Frequently asked questions about flying from Portland, Maine to London Gatwick Airport

  • 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 26m.

  • 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
Hounslow
Gatwick
Milton Keynes
Luton
Dover
Hayes
Crawley
Croydon
Wembley
Stansted
Slough
Harrow
Brentwood
Watford
Cobham
Guildford
Folkestone
Uxbridge
Romford
Chelmsford

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.
Start using Trips
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