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Cheap flights from Philadelphia to London from $311

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to London departing on 10/17. 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
0 bags

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Find the cheapest flights from Philadelphia to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:25 am - 10:00 am
PHL
-
LGW
20h 35m
2 stops
Multiple Airlines Logo
2:00 pm - 8:51 am
LGW
-
PHL
23h 51m
1 stop
$885Multiple Airlines
Thu, Jul 16 - Sun, Aug 16
Multiple Airlines Logo
10:11 am - 10:00 am
PHL
-
LGW
18h 49m
1 stop
Multiple Airlines Logo
2:00 pm - 12:44 am
LGW
-
PHL
15h 44m
1 stop
$888Multiple Airlines
Wed, Jul 29 - Thu, Aug 20
Multiple Airlines Logo
12:46 pm - 10:00 am
PHL
-
LGW
16h 14m
1 stop
Multiple Airlines Logo
2:00 pm - 12:44 am
LGW
-
PHL
15h 44m
1 stop
$896Multiple Airlines
Mon, Aug 3 - Thu, Aug 20
Multiple Airlines Logo
9:16 pm - 10:00 am
PHL
-
LGW
31h 44m
1 stop
Multiple Airlines Logo
2:00 pm - 8:51 am
LGW
-
PHL
23h 51m
1 stop
$900Multiple Airlines
Sun, Jul 12 - Sun, Aug 16
TAP AIR PORTUGAL Logo
3:25 pm - 8:30 pm
PHL
-
LGW
24h 05m
2 stops
TAP AIR PORTUGAL Logo
12:05 pm - 9:50 am
LGW
-
PHL
26h 45m
2 stops
$901TAP AIR PORTUGAL
Wed, Oct 7 - Wed, Oct 14
Multiple Airlines Logo
7:20 am - 10:00 am
PHL
-
LGW
21h 40m
2 stops
Multiple Airlines Logo
2:00 pm - 8:51 am
LGW
-
PHL
23h 51m
1 stop
$904Multiple Airlines
Mon, Jul 13 - Sun, Aug 16
Multiple Airlines Logo
1:28 pm - 10:00 am
PHL
-
LGW
15h 32m
1 stop
Multiple Airlines Logo
2:00 pm - 8:51 am
LGW
-
PHL
23h 51m
1 stop
$909Multiple Airlines
Wed, Jul 15 - Sun, Aug 16
TAP AIR PORTUGAL Logo
3:25 pm - 8:30 pm
PHL
-
LGW
24h 05m
2 stops
TAP AIR PORTUGAL Logo
10:35 am - 9:50 am
LGW
-
PHL
28h 15m
2 stops
$910TAP AIR PORTUGAL
Wed, Oct 14 - Wed, Oct 21
Multiple Airlines Logo
10:11 am - 10:00 am
PHL
-
LGW
18h 49m
1 stop
Multiple Airlines Logo
2:00 pm - 8:56 am
LGW
-
PHL
23h 56m
1 stop
$912Multiple Airlines
Wed, Jul 29 - Tue, Aug 18
Multiple Airlines Logo
4:20 pm - 8:40 pm
PHL
-
LGW
23h 20m
2 stops
Multiple Airlines Logo
9:35 pm - 3:41 pm
LGW
-
PHL
23h 06m
2 stops
$916Multiple Airlines
Wed, Aug 5 - Tue, Aug 11

JetBlue flights from Philadelphia to London Gatwick Airport

Our best JetBlue deals on Philadelphia to London Gatwick Airport flight tickets
JetBlue
Aug 17
PHL8:28 amPhiladelphia
20h 07m
1 stop
LGW9:35 amLondon Gatwick
Aug 21
LGW12:20 pmLondon Gatwick
12h 40m
1 stop
PHL8:00 pmPhiladelphia
$920
JetBlue
Aug 14
PHL8:55 pmPhiladelphia
31h 40m
1 stop
LGW9:35 amLondon Gatwick
Aug 23
LGW12:20 pmLondon Gatwick
12h 40m
1 stop
PHL8:00 pmPhiladelphia
$938
JetBlue
Aug 12
PHL8:28 amPhiladelphia
20h 07m
1 stop
LGW9:35 amLondon Gatwick
Aug 20
LGW12:20 pmLondon Gatwick
12h 40m
1 stop
PHL8:00 pmPhiladelphia
$940

TAP AIR PORTUGAL flights from Philadelphia to London Gatwick Airport

Our best TAP AIR PORTUGAL deals on Philadelphia to London Gatwick Airport flight tickets
TAP AIR PORTUGAL
Oct 7
PHL3:25 pmPhiladelphia
24h 05m
2 stops
LGW8:30 pmLondon Gatwick
Oct 14
LGW12:05 pmLondon Gatwick
26h 45m
2 stops
PHL9:50 amPhiladelphia
$901
TAP AIR PORTUGAL
Oct 14
PHL3:25 pmPhiladelphia
24h 05m
2 stops
LGW8:30 pmLondon Gatwick
Oct 21
LGW10:35 amLondon Gatwick
28h 15m
2 stops
PHL9:50 amPhiladelphia
$910
TAP AIR PORTUGAL
Sep 29
PHL6:00 amPhiladelphia
22h 45m
2 stops
LGW9:45 amLondon Gatwick
Oct 20
LGW10:35 amLondon Gatwick
28h 15m
2 stops
PHL9:50 amPhiladelphia
$918

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 May 20, 2026.
Use the filters below to find and compare flights from Philadelphia to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Thu 7/16

8:25 am-10:00 am

2 stops20h 35m

London Gatwick

Sun 8/16

2:00 pm-8:51 am

1 stop23h 51m

$885

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Wed 7/29

10:11 am-10:00 am

1 stop18h 49m

London Gatwick

Thu 8/20

2:00 pm-12:44 am

1 stop15h 44m

$888
Quickest round-trip

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 8/3

12:46 pm-10:00 am

1 stop16h 14m

London Gatwick

Thu 8/20

2:00 pm-12:44 am

1 stop15h 44m

$896

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Sun 7/12

9:16 pm-10:00 am

1 stop31h 44m

London Gatwick

Sun 8/16

2:00 pm-8:51 am

1 stop23h 51m

$900

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Wed 10/7

3:25 pm-8:30 pm

2 stops24h 05m

London Gatwick

Wed 10/14

12:05 pm-9:50 am

2 stops26h 45m

$901

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 7/13

7:20 am-10:00 am

2 stops21h 40m

London Gatwick

Sun 8/16

2:00 pm-8:51 am

1 stop23h 51m

$904

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Wed 7/15

1:28 pm-10:00 am

1 stop15h 32m

London Gatwick

Sun 8/16

2:00 pm-8:51 am

1 stop23h 51m

$909

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Wed 10/14

3:25 pm-8:30 pm

2 stops24h 05m

London Gatwick

Wed 10/21

10:35 am-9:50 am

2 stops28h 15m

$910

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Wed 7/29

10:11 am-10:00 am

1 stop18h 49m

London Gatwick

Tue 8/18

2:00 pm-8:56 am

1 stop23h 56m

$912

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Wed 8/5

4:20 pm-8:40 pm

2 stops23h 20m

London Gatwick

Tue 8/11

9:35 pm-3:41 pm

2 stops23h 06m

$916

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 Philadelphia 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

Can stopping save me money on Philadelphia to London Gatwick Airport flights?

You could potentially save up to 5% on your flight if you consider stops on a Philadelphia to London Gatwick Airport flight.

When to book flights from Philadelphia to London Gatwick Airport

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

Cheap Philadelphia to London Gatwick Airport (PHL to LGW) flight deals and tips

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

Fastest flight time

13h 35m

Direct flights

None
The fastest flight from Philadelphia to London Gatwick Airport takes 13h 35m
There are no direct flights from Philadelphia to London Gatwick Airport. There are no popular flight routes from Philadelphia to London Gatwick Airport.
Search flight deals

Frequently asked questions about flying from Philadelphia to London Gatwick Airport

  • How far is Philadelphia to London Gatwick by plane?

    The straight-line distance from Philadelphia to London Gatwick is 3544.3 mi. Typically, this will take 13h 35m by plane in normal conditions.

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

    Prices for flights from Philadelphia Airport to London Gatwick Airport refresh daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to London Gatwick Airport.

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

    The required travel and health documents for your London Gatwick Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Gatwick Airport. We recommend that you seek guidance from your airline or a reliable 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
Dover
Luton
Hayes
Crawley
Wembley
Slough
Croydon
Stansted
Watford
Harrow
Brentwood
Dartford
Ilford
Cobham
Folkestone
Uxbridge
Romford

Why use momondo?

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

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

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

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

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

momondo helps you find the best flight between Philadelphia 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 Philadelphia 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 Philadelphia 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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