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Cheap flights from London Gatwick Airport to Philadelphia from £344

LGW — PHL
27 Sep — 4 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Gatwick to Philadelphia

Enter your travel dates to find the best prices.

Cheapest flights from Gatwick to Philadelphia

Wed 23/914:00 -
1 stop15h 09m
Wed 30/906:00 -
2 stops23h 00m
Deal found 24/8£586
Fri 23/1009:50 -
1 stop14h 05m
Sat 31/1018:40 -
1 stop10h 45m
Deal found 24/8£589
Mon 14/914:00 -
2 stops46h 16m
Mon 21/907:15 -
1 stop21h 45m
Deal found 26/8£590
Fri 9/1014:00 -
1 stop26h 33m
Fri 16/1005:15 -
1 stop23h 45m
Deal found 25/8£595
Sun 27/914:00 -
1 stop24h 05m
Thu 1/1005:15 -
1 stop23h 45m
Deal found 25/8£597
Tue 25/814:00 -
1 stop24h 35m
Mon 28/905:15 -
1 stop23h 45m
Deal found 24/8£598
Thu 8/1007:30 -
3 stops19h 02m
Thu 15/1015:25 -
2 stops23h 50m
Deal found 24/8£598
Wed 16/914:00 -
2 stops38h 18m
Sun 20/915:30 -
1 stop13h 30m
Deal found 27/8£599
Sat 19/914:00 -
1 stop15h 09m
Sun 27/917:45 -
1 stop35h 15m
Deal found 26/8£600
Wed 7/1014:00 -
1 stop15h 09m
Tue 3/1117:45 -
1 stop32h 10m
Deal found 28/8£603

Find flight deals from Gatwick to Philadelphia

Round-trip from

£586

One-way from

£344

Popular in

August

Cheapest in

January

Average price

£834
23/9-30/9
  • 23/9-30/9
  • 3 total stops
  • 38h 09m total
  • London to Philadelphia
Search Deals
1/10
  • 1/10
  • 1 total stop
  • 24h 05m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£63 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Gatwick Airport to Philadelphia that are best for you.

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Price

Cheapest return flight
Fastest return journey

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Thu 15/10

14:00-11:33

1 stop26h 33m

Philadelphia

Fri 16/10

15:30-10:00

1 stop13h 30m

£641

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Mon 25/1

10:40-18:23

2 stops36h 43m

Philadelphia

Mon 1/2

08:40-09:50

2 stops20h 10m

£656

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Wed 9/12

16:35-18:43

2 stops31h 08m

Philadelphia

Mon 14/12

09:30-20:35

3 stops30h 05m

£667

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Sun 20/9

14:00-11:40

1 stop26h 40m

Philadelphia

Thu 24/9

17:45-10:00

1 stop35h 15m

£669

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Thu 22/10

10:35-09:32

2 stops27h 57m

Philadelphia

Sun 25/10

10:27-09:50

2 stops19h 23m

£677

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Thu 22/10

10:35-09:32

2 stops27h 57m

Philadelphia

Sat 31/10

15:35-09:50

2 stops14h 15m

£703

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Thu 8/10

10:35-09:32

2 stops27h 57m

Philadelphia

Thu 15/10

10:22-09:45

2 stops18h 23m

£716

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Fri 18/12

10:45-18:43

3 stops36h 58m

Philadelphia

Sun 10/1

13:30-20:35

3 stops26h 05m

£776

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Wed 9/9

16:25-22:03

2 stops34h 38m

Philadelphia

Sun 13/9

20:10-09:45

3 stops32h 35m

£779

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Mon 12/10

12:05-09:32

2 stops26h 27m

Philadelphia

Mon 19/10

15:26-20:25

3 stops23h 59m

£789

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Gatwick to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Gatwick with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from London Gatwick Airport to Philadelphia

What’s the top stopover airport for flights from London Gatwick Airport to Philadelphia?

Boston (BOS) – chosen by Cheapflights users on 63% of one-stop itineraries from London Gatwick Airport to Philadelphia on Cheapflights.

What’s the cheapest stopover airport for flights from London Gatwick Airport to Philadelphia?

Barcelona (BCN) is the most affordable one-stop option, with an average return flight price of £469.

What’s the fastest stopover option from London Gatwick Airport to Philadelphia?

Flights via Barcelona (BCN) have the shortest average one-way travel time for one-stop routes: 13h 45m.

Which airport typically offers the quickest stopover for flights from London Gatwick Airport to Philadelphia?

Flights via Barcelona (BCN) offer the fastest connection on this route, with an average stopover time of 2h 23m.

Related info for your journey

  • What airport do you fly into for flights to Philadelphia from London Gatwick?

    Philadelphia (PHL) is the airport you will fly into if you book a flight from London Gatwick to Philadelphia. You should not have trouble finding flights to Philadelphia from London Gatwick; the airport handles an average of 0 inbound flights from London Gatwick per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Philadelphia airport from London Gatwick. It is only a 7.0 mi journey from Philadelphia (PHL) to Philadelphia’s city center.

  • How long is the flight from London Gatwick Airport to Philadelphia?

    For as low as £667, TAP AIR PORTUGAL can have you in Philadelphia from London Gatwick Airport in 31h 08m. The distance from London Gatwick Airport to Philadelphia is about 3551 mi.

  • Can I find deals for flights from Gatwick to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Gatwick to Philadelphia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Gatwick to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Philadelphia.

  • Can I find deals for business class flights from Gatwick to Philadelphia?

    Yes. Cheapflights offers flight deals from Gatwick to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
King of Prussia

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Gatwick to Philadelphia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Gatwick to Philadelphia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Philadelphia from Gatwick.

Can Cheapflights find flights from Gatwick to Philadelphia with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Gatwick to Philadelphia flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Gatwick to Philadelphia become cheaper?

Yes, Cheapflights offers price alerts on Gatwick to Philadelphia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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