Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Philadelphia to London from £139

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 21/10. 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
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Philadelphia to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:00 - 10:00PHL-LGW
33h 00m1 stop
Multiple Airlines Logo
14:00 - 00:40LGW-PHL
15h 40m1 stop
£400Multiple Airlines
Find Deal
Wed, 18 Feb - Thu, 26 Feb
Multiple Airlines Logo
17:30 - 08:25PHL-LGW
9h 55m1 stop
Multiple Airlines Logo
08:50 - 16:00LGW-PHL
12h 10m1 stop
£403Multiple Airlines
Find Deal
Sun, 9 Nov - Tue, 18 Nov
Multiple Airlines Logo
17:30 - 08:25PHL-LGW
9h 55m1 stop
Multiple Airlines Logo
08:50 - 16:00LGW-PHL
12h 10m1 stop
£404Multiple Airlines
Find Deal
Sun, 9 Nov - Tue, 18 Nov
Multiple Airlines Logo
12:30 - 10:00PHL-LGW
16h 30m1 stop
Multiple Airlines Logo
14:00 - 00:40LGW-PHL
15h 40m1 stop
£406Multiple Airlines
Find Deal
Thu, 27 Nov - Sat, 6 Dec
Multiple Airlines Logo
15:30 - 21:00PHL-LGW
24h 30m3 stops
Multiple Airlines Logo
17:55 - 14:47LGW-PHL
25h 52m3 stops
£420Multiple Airlines
Find Deal
Mon, 1 Dec - Mon, 8 Dec
Multiple Airlines Logo
15:30 - 21:00PHL-LGW
24h 30m3 stops
Multiple Airlines Logo
21:40 - 14:47LGW-PHL
22h 07m3 stops
£420Multiple Airlines
Find Deal
Mon, 1 Dec - Tue, 9 Dec
Multiple Airlines Logo
09:48 - 10:10PHL-LGW
43h 22m2 stops
Multiple Airlines Logo
14:00 - 23:34LGW-PHL
14h 34m1 stop
£421Multiple Airlines
Find Deal
Thu, 27 Nov - Sat, 6 Dec
Multiple Airlines Logo
18:24 - 09:50PHL-LGW
34h 26m2 stops
Multiple Airlines Logo
14:10 - 22:05LGW-PHL
36h 55m1 stop
£428Multiple Airlines
Find Deal
Sun, 9 Nov - Sun, 11 Jan
Multiple Airlines Logo
09:20 - 21:00PHL-LGW
30h 40m3 stops
Multiple Airlines Logo
19:55 - 22:46LGW-PHL
31h 51m2 stops
£429Multiple Airlines
Find Deal
Mon, 17 Nov - Tue, 2 Dec
SWISS Logo
13:10 - 17:50PHL-LGW
23h 40m2 stops
SWISS Logo
18:40 - 21:51LGW-PHL
32h 11m2 stops
£459SWISS
Find Deal
Mon, 12 Jan - Tue, 27 Jan

SWISS flights from Philadelphia to London Gatwick Airport

Our best SWISS deals on Philadelphia to London Gatwick Airport flight tickets
SWISS
12 Jan
PHL13:10Philadelphia
23h 40m
2 stops
LGW17:50London Gatwick
27 Jan
LGW18:40London Gatwick
32h 11m
2 stops
PHL21:51Philadelphia
£459
Find similar
SWISS
29 Oct
PHL17:07Philadelphia
20h 43m
2 stops
LGW17:50London Gatwick
19 Nov
LGW18:40London Gatwick
31h 41m
2 stops
PHL21:21Philadelphia
£587
Find similar
SWISS
21 Oct
PHL17:35Philadelphia
19h 15m
2 stops
LGW17:50London Gatwick
28 Oct
LGW18:40London Gatwick
33h 35m
2 stops
PHL00:15Philadelphia
£622
Find similar

JetBlue flights from Philadelphia to London Gatwick Airport

Our best JetBlue deals on Philadelphia to London Gatwick Airport flight tickets
JetBlue
16 Oct
PHL10:20Philadelphia
18h 15m
1 stop
LGW09:35London Gatwick
20 Oct
LGW12:10London Gatwick
26h 23m
1 stop
PHL09:33Philadelphia
£447
Find similar
JetBlue
18 Oct
PHL15:31Philadelphia
13h 04m
1 stop
LGW09:35London Gatwick
22 Oct
LGW12:10London Gatwick
14h 45m
1 stop
PHL21:55Philadelphia
£459
Find similar
JetBlue
18 Oct
PHL15:31Philadelphia
13h 04m
1 stop
LGW09:35London Gatwick
22 Oct
LGW12:10London Gatwick
14h 45m
1 stop
PHL21:55Philadelphia
£492
Find similar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 16 October 2025.
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

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Wed 18/2

20:00-10:00

1 stop33h 00m

London Gatwick

Thu 26/2

14:00-00:40

1 stop15h 40m

£400

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Sun 9/11

17:30-08:25

1 stop9h 55m

London Gatwick

Tue 18/11

08:50-16:00

1 stop12h 10m

£403

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Sun 9/11

17:30-08:25

1 stop9h 55m

London Gatwick

Tue 18/11

08:50-16:00

1 stop12h 10m

£404

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Thu 27/11

12:30-10:00

1 stop16h 30m

London Gatwick

Sat 6/12

14:00-00:40

1 stop15h 40m

£406

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 1/12

15:30-21:00

3 stops24h 30m

London Gatwick

Mon 8/12

17:55-14:47

3 stops25h 52m

£420

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 1/12

15:30-21:00

3 stops24h 30m

London Gatwick

Tue 9/12

21:40-14:47

3 stops22h 07m

£420

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Thu 27/11

09:48-10:10

2 stops43h 22m

London Gatwick

Sat 6/12

14:00-23:34

1 stop14h 34m

£421

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Sun 9/11

18:24-09:50

2 stops34h 26m

London Gatwick

Sun 11/1

14:10-22:05

1 stop36h 55m

£428

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 17/11

09:20-21:00

3 stops30h 40m

London Gatwick

Tue 2/12

19:55-22:46

2 stops31h 51m

£429

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 12/1

13:10-17:50

2 stops23h 40m

London Gatwick

Tue 27/1

18:40-21:51

2 stops32h 11m

£459

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

What is the cheapest airline that flies from Philadelphia to London Gatwick?

TAP AIR PORTUGAL is the most popular carrier operating from Philadelphia to London Gatwick

Which airlines fly to London Gatwick Airport?

Norse Atlantic UK, British Airways and Virgin Atlantic are the top three most popular airlines that fly to London Gatwick Airport from Philadelphia according to our data. Norse Atlantic UK is the first choice among our users, with 50% of people opting to fly with this airline when travelling 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 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 return 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

Direct flights

None
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

  • How far is Philadelphia to London Gatwick by plane?

    A flight from Philadelphia to London Gatwick will travel around 3544.3 mi. Typically, this will take 9h 55m 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 are updated 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 travel and health documents you'll need for your trip to London Gatwick Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Gatwick Airport. It is always advisable to seek 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
Gatwick
Maidstone
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Colchester
Dover
Hayes
Chelmsford
Worthing
Dartford
Bedford
Ramsgate
Stansted

Why use momondo?

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

It is quick and easy to find Philadelphia 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 Philadelphia to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from Philadelphia which offer a flexible booking policy as well as other useful filters and features.

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?

Yes. momondo can track prices for Philadelphia 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.

An easier way to manage your London Gatwick Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 15/11
Sat 22/11
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London