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Cheap flights from London Gatwick Airport to Philadelphia from $492

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Gatwick Airport to Philadelphia departing on 1/20. 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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Find the cheapest flights from London Gatwick Airport to Philadelphia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:00 pm - 11:18 amLGW-PHL
26h 18m2 stops
Multiple Airlines Logo
2:06 pm - 10:00 amPHL-LGW
14h 54m1 stop
$598Multiple Airlines
Find Deal
Sat, Dec 6 - Sun, Dec 14
Multiple Airlines Logo
2:00 pm - 3:16 pmLGW-PHL
30h 16m1 stop
Multiple Airlines Logo
12:32 pm - 10:00 amPHL-LGW
16h 28m1 stop
$604Multiple Airlines
Find Deal
Thu, Feb 19 - Mon, Mar 2
Multiple Airlines Logo
2:00 pm - 12:41 amLGW-PHL
15h 41m1 stop
Multiple Airlines Logo
7:00 am - 10:05 amPHL-LGW
22h 05m1 stop
$625Multiple Airlines
Find Deal
Fri, Jan 16 - Sat, Jan 17
TAP AIR PORTUGAL Logo
4:35 pm - 9:24 pmLGW-PHL
33h 49m2 stops
TAP AIR PORTUGAL Logo
1:30 pm - 9:50 amPHL-LGW
15h 20m2 stops
$713TAP AIR PORTUGAL
Find Deal
Wed, Jan 28 - Wed, Feb 4
TAP AIR PORTUGAL Logo
4:00 pm - 9:24 pmLGW-PHL
58h 24m2 stops
TAP AIR PORTUGAL Logo
1:30 pm - 3:45 pmPHL-LGW
21h 15m2 stops
$727TAP AIR PORTUGAL
Find Deal
Thu, Jan 15 - Fri, Jan 30
British Airways Logo
11:20 am - 12:55 pmLGW-PHL
30h 35m1 stop
British Airways Logo
3:50 pm - 7:30 amPHL-LGW
34h 40m1 stop
$758British Airways
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Tue, Nov 25 - Mon, Dec 1
American Airlines Logo
11:20 am - 9:50 pmLGW-PHL
15h 30m1 stop
American Airlines Logo
8:20 am - 7:30 amPHL-LGW
18h 10m1 stop
$766American Airlines
Find Deal
Thu, Feb 19 - Tue, Mar 3
British Airways Logo
11:20 am - 8:35 amLGW-PHL
26h 15m1 stop
British Airways Logo
7:00 am - 7:30 amPHL-LGW
19h 30m1 stop
$772British Airways
Find Deal
Wed, Nov 26 - Wed, Dec 17
Icelandair Logo
11:55 am - 9:24 pmLGW-PHL
14h 29m2 stops
Icelandair Logo
8:40 am - 10:55 amPHL-LGW
21h 15m2 stops
$776Icelandair
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Sat, Jan 24 - Tue, Jan 27
Icelandair Logo
11:55 am - 12:13 amLGW-PHL
16h 18m2 stops
Icelandair Logo
5:03 pm - 2:40 pmPHL-LGW
16h 37m2 stops
$779Icelandair
Find Deal
Sun, Mar 22 - Mon, Mar 30

TAP AIR PORTUGAL flights from London Gatwick Airport to Philadelphia

Our best TAP AIR PORTUGAL deals on London Gatwick Airport to Philadelphia flight tickets
TAP AIR PORTUGAL
Jan 28
LGW4:35 pmLondon Gatwick
33h 49m
2 stops
PHL9:24 pmPhiladelphia
Feb 4
PHL1:30 pmPhiladelphia
15h 20m
2 stops
LGW9:50 amLondon Gatwick
$713
Find similar
TAP AIR PORTUGAL
Jan 15
LGW4:00 pmLondon Gatwick
58h 24m
2 stops
PHL9:24 pmPhiladelphia
Jan 30
PHL1:30 pmPhiladelphia
21h 15m
2 stops
LGW3:45 pmLondon Gatwick
$727
Find similar
TAP AIR PORTUGAL
Feb 19
LGW10:10 amLondon Gatwick
19h 03m
3 stops
PHL12:13 amPhiladelphia
Mar 1
PHL8:20 amPhiladelphia
20h 30m
2 stops
LGW9:50 amLondon Gatwick
$729
Find similar

British Airways flights from London Gatwick Airport to Philadelphia

Our best British Airways deals on London Gatwick Airport to Philadelphia flight tickets
British Airways
Nov 25
LGW11:20 amLondon Gatwick
30h 35m
1 stop
PHL12:55 pmPhiladelphia
Dec 1
PHL3:50 pmPhiladelphia
34h 40m
1 stop
LGW7:30 amLondon Gatwick
$758
Find similar
British Airways
Nov 26
LGW11:20 amLondon Gatwick
26h 15m
1 stop
PHL8:35 amPhiladelphia
Dec 17
PHL7:00 amPhiladelphia
19h 30m
1 stop
LGW7:30 amLondon Gatwick
$772
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Gatwick Airport to Philadelphia 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 October 19, 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sat 12/6

2:00 pm-11:18 am

2 stops26h 18m

Philadelphia

Sun 12/14

2:06 pm-10:00 am

1 stop14h 54m

$598

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 2/19

2:00 pm-3:16 pm

1 stop30h 16m

Philadelphia

Mon 3/2

12:32 pm-10:00 am

1 stop16h 28m

$604

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Fri 1/16

2:00 pm-12:41 am

1 stop15h 41m

Philadelphia

Sat 1/17

7:00 am-10:05 am

1 stop22h 05m

$625

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 1/28

4:35 pm-9:24 pm

2 stops33h 49m

Philadelphia

Wed 2/4

1:30 pm-9:50 am

2 stops15h 20m

$713

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 1/15

4:00 pm-9:24 pm

2 stops58h 24m

Philadelphia

Fri 1/30

1:30 pm-3:45 pm

2 stops21h 15m

$727

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Tue 11/25

11:20 am-12:55 pm

1 stop30h 35m

Philadelphia

Mon 12/1

3:50 pm-7:30 am

1 stop34h 40m

$758

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 2/19

11:20 am-9:50 pm

1 stop15h 30m

Philadelphia

Tue 3/3

8:20 am-7:30 am

1 stop18h 10m

$766

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 11/26

11:20 am-8:35 am

1 stop26h 15m

Philadelphia

Wed 12/17

7:00 am-7:30 am

1 stop19h 30m

$772

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sat 1/24

11:55 am-9:24 pm

2 stops14h 29m

Philadelphia

Tue 1/27

8:40 am-10:55 am

2 stops21h 15m

$776

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sun 3/22

11:55 am-12:13 am

2 stops16h 18m

Philadelphia

Mon 3/30

5:03 pm-2:40 pm

2 stops16h 37m

$779

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 Philadelphia from

How to get the cheapest flight ticket from London Gatwick Airport to Philadelphia

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 Philadelphia?

The cheapest day to depart from London Gatwick Airport to Philadelphia is on a Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $768. On the other hand, Saturday is the most expensive day to depart from London Gatwick Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $894.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from London Gatwick Airport to Philadelphia in the evening for as low as $704. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the morning when prices are around $832.

When to book flights from London Gatwick Airport to Philadelphia

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

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

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

Direct flights

None
There are no direct flights from London Gatwick Airport to Philadelphia. There are no popular flight routes from London Gatwick Airport to Philadelphia.
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  • How far is London Gatwick to Philadelphia by plane?

    Philadelphia is 3544.3 mi away from London Gatwick. A reasonable flight in good conditions will take 12h 00m.

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

    Prices for flights from London Gatwick Airport to Philadelphia Airport are refreshed on a daily basis.

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

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

    The necessary travel and health documents for your Philadelphia 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 Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Ocean City
Wildwood Crest
King of Prussia
Dewey Beach
Cherry Hill
Reading
Newark
North Wildwood
Dover
Avalon
Lewes
Stone Harbor
Vineland
Essington
Pottstown
New Castle
Somers Point

Why use momondo?

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

It is quick and easy to find London to Philadelphia 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 Philadelphia that suits you.

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

All flight searches from London to Philadelphia on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Philadelphia.

I’m not ready to book a flight from London to Philadelphia right now. Can momondo alert me if prices change?

Price alerts on flights to Philadelphia from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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