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Cheap flights from Philadelphia to London from $237

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 7/21. 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

Find the cheapest flights from Philadelphia to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:46 pm - 10:00 am
PHL
-
LGW
16h 14m
1 stop
Multiple Airlines Logo
2:00 pm - 8:51 am
LGW
-
PHL
23h 51m
1 stop
$872Multiple Airlines
Sun, Jul 26 - Mon, Aug 17
Multiple Airlines Logo
5:25 am - 10:00 am
PHL
-
LGW
23h 35m
1 stop
Multiple Airlines Logo
2:00 pm - 8:51 am
LGW
-
PHL
23h 51m
1 stop
$873Multiple Airlines
Thu, Jul 30 - Mon, Aug 17
Delta Logo
1:15 pm - 4:00 pm
PHL
-
LGW
21h 45m
2 stops
Delta Logo
10:25 am - 12:41 am
LGW
-
PHL
19h 16m
2 stops
$874Delta
Tue, Sep 1 - Sat, Sep 12
Delta Logo
9:30 am - 9:25 am
PHL
-
LGW
18h 55m
2 stops
Delta Logo
10:25 am - 8:29 am
LGW
-
PHL
27h 04m
2 stops
$875Delta
Wed, Sep 2 - Thu, Sep 10
JetBlue Logo
9:12 am - 9:35 am
PHL
-
LGW
19h 23m
1 stop
JetBlue Logo
12:20 pm - 8:01 pm
LGW
-
PHL
12h 41m
1 stop
$876JetBlue
Wed, Aug 12 - Sat, Aug 15
Multiple Airlines Logo
5:25 am - 10:00 am
PHL
-
LGW
23h 35m
1 stop
Multiple Airlines Logo
2:00 pm - 8:47 am
LGW
-
PHL
23h 47m
1 stop
$877Multiple Airlines
Thu, Jul 30 - Sun, Aug 16
Multiple Airlines Logo
12:46 pm - 10:00 am
PHL
-
LGW
16h 14m
1 stop
Multiple Airlines Logo
2:00 pm - 8:47 am
LGW
-
PHL
23h 47m
1 stop
$878Multiple Airlines
Mon, Aug 10 - Sun, Aug 16
Multiple Airlines Logo
12:46 pm - 10:00 am
PHL
-
LGW
16h 14m
1 stop
Multiple Airlines Logo
2:00 pm - 8:47 am
LGW
-
PHL
23h 47m
1 stop
$879Multiple Airlines
Mon, Aug 10 - Sun, Aug 16
Multiple Airlines Logo
9:16 pm - 10:00 am
PHL
-
LGW
31h 44m
1 stop
Multiple Airlines Logo
2:00 pm - 11:29 pm
LGW
-
PHL
14h 29m
1 stop
$880Multiple Airlines
Sat, Aug 1 - Fri, Aug 14
JetBlue Logo
9:12 am - 9:35 am
PHL
-
LGW
19h 23m
1 stop
JetBlue Logo
12:20 pm - 8:01 pm
LGW
-
PHL
12h 41m
1 stop
$881JetBlue
Sun, Aug 2 - Tue, Aug 25

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Delta flights from Philadelphia to London Gatwick Airport

Our best Delta deals on Philadelphia to London Gatwick Airport flight tickets
Delta
Sep 1
PHL1:15 pmPhiladelphia
21h 45m
2 stops
LGW4:00 pmLondon Gatwick
Sep 12
LGW10:25 amLondon Gatwick
19h 16m
2 stops
PHL12:41 amPhiladelphia
$874
Delta
Sep 2
PHL9:30 amPhiladelphia
18h 55m
2 stops
LGW9:25 amLondon Gatwick
Sep 10
LGW10:25 amLondon Gatwick
27h 04m
2 stops
PHL8:29 amPhiladelphia
$875
Delta
Aug 9
PHL10:00 amPhiladelphia
18h 25m
2 stops
LGW9:25 amLondon Gatwick
Aug 14
LGW10:25 amLondon Gatwick
19h 54m
2 stops
PHL1:19 amPhiladelphia
$903

JetBlue flights from Philadelphia to London Gatwick Airport

Our best JetBlue deals on Philadelphia to London Gatwick Airport flight tickets
JetBlue
Jul 7
PHL8:35 amPhiladelphia
20h 00m
1 stop
LGW9:35 amLondon Gatwick
Aug 14
LGW12:20 pmLondon Gatwick
24h 48m
1 stop
PHL8:08 amPhiladelphia
$874
JetBlue
Aug 12
PHL9:12 amPhiladelphia
19h 23m
1 stop
LGW9:35 amLondon Gatwick
Aug 15
LGW12:20 pmLondon Gatwick
12h 41m
1 stop
PHL8:01 pmPhiladelphia
$876
JetBlue
Aug 2
PHL9:12 amPhiladelphia
19h 23m
1 stop
LGW9:35 amLondon Gatwick
Aug 25
LGW12:20 pmLondon Gatwick
12h 41m
1 stop
PHL8:01 pmPhiladelphia
$881

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 June 30, 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

Sun 7/26

12:46 pm-10:00 am

1 stop16h 14m

London Gatwick

Mon 8/17

2:00 pm-8:51 am

1 stop23h 51m

$872

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Thu 7/30

5:25 am-10:00 am

1 stop23h 35m

London Gatwick

Mon 8/17

2:00 pm-8:51 am

1 stop23h 51m

$873

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Tue 9/1

1:15 pm-4:00 pm

2 stops21h 45m

London Gatwick

Sat 9/12

10:25 am-12:41 am

2 stops19h 16m

$874

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Wed 9/2

9:30 am-9:25 am

2 stops18h 55m

London Gatwick

Thu 9/10

10:25 am-8:29 am

2 stops27h 04m

$875
Quickest round-trip

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Wed 8/12

9:12 am-9:35 am

1 stop19h 23m

London Gatwick

Sat 8/15

12:20 pm-8:01 pm

1 stop12h 41m

$876

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Thu 7/30

5:25 am-10:00 am

1 stop23h 35m

London Gatwick

Sun 8/16

2:00 pm-8:47 am

1 stop23h 47m

$877

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 8/10

12:46 pm-10:00 am

1 stop16h 14m

London Gatwick

Sun 8/16

2:00 pm-8:47 am

1 stop23h 47m

$878

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 8/10

12:46 pm-10:00 am

1 stop16h 14m

London Gatwick

Sun 8/16

2:00 pm-8:47 am

1 stop23h 47m

$879

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Sat 8/1

9:16 pm-10:00 am

1 stop31h 44m

London Gatwick

Fri 8/14

2:00 pm-11:29 pm

1 stop14h 29m

$880

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Sun 8/2

9:12 am-9:35 am

1 stop19h 23m

London Gatwick

Tue 8/25

12:20 pm-8:01 pm

1 stop12h 41m

$881

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 7% 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

9h 40m

Direct flights

None
The fastest flight from Philadelphia to London Gatwick Airport takes 9h 40m
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 9h 40m 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
Luton
Hayes
Dover
Crawley
Croydon
Wembley
Stansted
Harrow
Slough
Watford
Ilford
Cobham
Brentwood
Folkestone
Guildford
Romford
Uxbridge

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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