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Cheap flights from London Gatwick Airport to Philadelphia from £346

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 7/9. 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 London Gatwick Airport to Philadelphia

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
14:00 - 23:47LGW  London Gatwick-PHL Philadelphia
14h 47m1 stop Orlando
Multiple Airlines Logo
10:37 - 10:00PHL  Philadelphia-LGW London Gatwick
18h 23m1 stop Orlando
£580Multiple Airlines
Mon, 19 Oct - Fri, 23 Oct
Multiple Airlines Logo
14:00 - 13:35LGW  London Gatwick-PHL Philadelphia
28h 35m2 stops Orlando Raleigh-Durham
Multiple Airlines Logo
15:30 - 10:00PHL  Philadelphia-LGW London Gatwick
13h 30m1 stop Orlando
£580Multiple Airlines
Mon, 14 Sep - Mon, 21 Sep
Multiple Airlines Logo
14:00 - 00:09LGW  London Gatwick-PHL Philadelphia
15h 09m1 stop Orlando
Multiple Airlines Logo
17:32 - 06:20PHL  Philadelphia-LGW London Gatwick
31h 48m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl
£581Multiple Airlines
Fri, 25 Sep - Fri, 2 Oct
Multiple Airlines Logo
14:00 - 09:32LGW  London Gatwick-PHL Philadelphia
24h 32m1 stop Orlando
Multiple Airlines Logo
14:45 - 10:00PHL  Philadelphia-LGW London Gatwick
14h 15m1 stop Orlando
£581Multiple Airlines
Wed, 14 Oct - Wed, 21 Oct
Multiple Airlines Logo
14:00 - 00:09LGW  London Gatwick-PHL Philadelphia
15h 09m1 stop Orlando
Multiple Airlines Logo
17:32 - 06:20PHL  Philadelphia-LGW London Gatwick
31h 48m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl
£581Multiple Airlines
Fri, 25 Sep - Fri, 2 Oct
Multiple Airlines Logo
14:00 - 09:05LGW  London Gatwick-PHL Philadelphia
24h 05m1 stop Orlando
Multiple Airlines Logo
14:50 - 10:00PHL  Philadelphia-LGW London Gatwick
14h 10m1 stop Orlando
£583Multiple Airlines
Wed, 16 Sep - Wed, 23 Sep
Multiple Airlines Logo
05:50 - 18:55LGW  London Gatwick-PHL Philadelphia
18h 05m2 stops Munich Franz Josef Strauss Dublin
Multiple Airlines Logo
15:30 - 10:00PHL  Philadelphia-LGW London Gatwick
13h 30m1 stop Orlando
£583Multiple Airlines
Tue, 20 Oct - Thu, 22 Oct
Multiple Airlines Logo
14:00 - 23:47LGW  London Gatwick-PHL Philadelphia
14h 47m1 stop Orlando
Multiple Airlines Logo
07:35 - 08:15PHL  Philadelphia-LGW London Gatwick
20h 40m1 stop Orlando
£584Multiple Airlines
Mon, 19 Oct - Sun, 25 Oct
Multiple Airlines Logo
14:00 - 09:32LGW  London Gatwick-PHL Philadelphia
24h 32m1 stop Orlando
Multiple Airlines Logo
15:30 - 10:00PHL  Philadelphia-LGW London Gatwick
13h 30m1 stop Orlando
£584Multiple Airlines
Sun, 11 Oct - Mon, 12 Oct
Multiple Airlines Logo
14:00 - 00:09LGW  London Gatwick-PHL Philadelphia
15h 09m1 stop Orlando
Multiple Airlines Logo
15:30 - 10:00PHL  Philadelphia-LGW London Gatwick
13h 30m1 stop Orlando
£584Multiple Airlines
Sat, 3 Oct - Mon, 5 Oct

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Iberia flights from London Gatwick Airport to Philadelphia

Our best Iberia deals on London Gatwick Airport to Philadelphia flight tickets
Iberia
13 Oct
LGW14:30London Gatwick
31h 36m
1 stop
PHL17:06Philadelphia
21 Oct
PHL20:10Philadelphia
33h 30m
1 stop
LGW10:40London Gatwick
£615
Iberia
30 Nov
LGW11:15London Gatwick
34h 24m
1 stop
PHL16:39Philadelphia
3 Dec
PHL20:23Philadelphia
30h 07m
1 stop
LGW07:30London Gatwick
£629
Iberia
29 Sept
LGW10:30London Gatwick
32h 04m
1 stop
PHL13:34Philadelphia
29 Dec
PHL19:50Philadelphia
18h 10m
1 stop
LGW19:00London Gatwick
£636

Icelandair flights from London Gatwick Airport to Philadelphia

Our best Icelandair deals on London Gatwick Airport to Philadelphia flight tickets
Icelandair
7 Oct
LGW15:40London Gatwick
31h 19m
2 stops
PHL17:59Philadelphia
21 Oct
PHL19:19Philadelphia
14h 21m
2 stops
LGW14:40London Gatwick
£604
Icelandair
30 Sept
LGW15:40London Gatwick
22h 51m
2 stops
PHL09:31Philadelphia
6 Oct
PHL15:57Philadelphia
17h 43m
2 stops
LGW14:40London Gatwick
£609
Icelandair
7 Oct
LGW15:40London Gatwick
23h 10m
2 stops
PHL09:50Philadelphia
21 Oct
PHL10:45Philadelphia
22h 55m
2 stops
LGW14:40London Gatwick
£629

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 16 August 2026.
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

Cheapest return flight

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Mon 19/10

14:00-23:47

1 stop14h 47m

Philadelphia

Fri 23/10

10:37-10:00

1 stop18h 23m

£580

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Mon 14/9

14:00-13:35

2 stops28h 35m

Philadelphia

Mon 21/9

15:30-10:00

1 stop13h 30m

£580

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Fri 25/9

14:00-00:09

1 stop15h 09m

Philadelphia

Fri 2/10

17:32-06:20

2 stops31h 48m

£581

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Wed 14/10

14:00-09:32

1 stop24h 32m

Philadelphia

Wed 21/10

14:45-10:00

1 stop14h 15m

£581

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Fri 25/9

14:00-00:09

1 stop15h 09m

Philadelphia

Fri 2/10

17:32-06:20

2 stops31h 48m

£581

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Wed 16/9

14:00-09:05

1 stop24h 05m

Philadelphia

Wed 23/9

14:50-10:00

1 stop14h 10m

£583

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Tue 20/10

05:50-18:55

2 stops18h 05m

Philadelphia

Thu 22/10

15:30-10:00

1 stop13h 30m

£583

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Mon 19/10

14:00-23:47

1 stop14h 47m

Philadelphia

Sun 25/10

07:35-08:15

1 stop20h 40m

£584

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Sun 11/10

14:00-09:32

1 stop24h 32m

Philadelphia

Mon 12/10

15:30-10:00

1 stop13h 30m

£584
Fastest return journey

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Sat 3/10

14:00-00:09

1 stop15h 09m

Philadelphia

Mon 5/10

15:30-10:00

1 stop13h 30m

£584

Flights are sorted by cheapest return 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?

Our data shows that Tuesday is the least expensive day to fly to Philadelphia. Tickets to fly out on this day can be as low as £628. On the other hand, Sunday is the most expensive day to depart from London Gatwick Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £690.

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

The cheapest time of day to fly to Philadelphia is in the morning when flights can be purchased for as low as £666. At midday is when there is more demand to fly to Philadelphia, so prices are often more expensive at around £667 per ticket.

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

You could potentially save up to 25% on your flight if you consider stops on a London Gatwick Airport to Philadelphia flight.

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 return 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

Fastest flight time

12h 10m

Direct flights

None
The fastest flight from London Gatwick Airport to Philadelphia takes 12h 10m
There are no direct flights from London Gatwick Airport to Philadelphia. There are no popular flight routes from London Gatwick Airport to Philadelphia.
Search flight deals

Frequently asked questions about flying from London Gatwick Airport to Philadelphia

  • How far is London Gatwick to Philadelphia by plane?

    The distance between London Gatwick and Philadelphia is about 3544.3 mi. A reasonable flight in good conditions will take 12h 10m.

  • 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 were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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.

Travelling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Bridgeport
Vineland
Newark
Reading
Rehoboth Beach
Dover
Essington
Ephrata
Cherry Hill
Dewey Beach
Wildwood
West Chester

Why use momondo?

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

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

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

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

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

momondo helps you find the best flight between London and Philadelphia 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 London to Philadelphia right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Philadelphia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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