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Cheap flights from London Gatwick Airport to Philadelphia from £396

LGW — PHL
31 Oct — 7 Nov1
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

Thu 3/1211:00 -
1 stop14h 50m
Fri 11/1211:53 -
1 stop17h 07m
Deal found 27/9£587
Fri 25/1212:35 -
1 stop25h 00m
Wed 13/118:37 -
2 stops31h 13m
Deal found 28/9£594
Sun 6/1212:35 -
1 stop25h 53m
Mon 14/1221:58 -
1 stop27h 52m
Deal found 30/9£596
Sun 6/1212:35 -
1 stop25h 53m
Wed 9/1218:40 -
2 stops31h 10m
Deal found 30/9£599
Fri 4/1212:35 -
1 stop15h 18m
Tue 15/1211:53 -
1 stop13h 57m
Deal found 30/9£600
Thu 3/1211:00 -
1 stop18h 47m
Thu 10/1205:01 -
1 stop20h 49m
Deal found 27/9£602
Fri 30/1010:00 -
3 stops25h 21m
Fri 6/1116:47 -
2 stops17h 58m
Deal found 29/9£605
Thu 24/1211:00 -
1 stop18h 58m
Wed 13/118:37 -
2 stops31h 13m
Deal found 28/9£606
Wed 9/1209:45 -
2 stops18h 20m
Tue 15/1221:58 -
1 stop27h 57m
Deal found 29/9£610
Fri 25/1212:35 -
2 stops17h 04m
Mon 11/121:51 -
1 stop27h 59m
Deal found 28/9£612

Find flight deals from Gatwick to Philadelphia

Round-trip from

£587

One-way from

£396

Popular in

August

Cheapest in

January

Average price

£675
3/12-11/12
  • 3/12-11/12
  • 2 total stops
  • 31h 57m total
  • London to Philadelphia
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27/10-31/12
  • 27/10-31/12
  • 1 total stop
  • 14h 55m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£62 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 October 2026
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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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Depart

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Price

Cheapest return flight

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Thu 22/10

14:00-11:33

1 stop26h 33m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£438

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Tue 15/12

19:40-15:35

1 stop24h 55m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£473

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Fri 23/10

14:00-23:43

1 stop14h 43m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£501

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Wed 14/10

14:00-13:49

1 stop28h 49m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£501
Fastest return journey

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Wed 23/12

07:25-15:25

1 stop13h 00m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£524

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Thu 17/12

10:00-08:58

2 stops27h 58m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£548

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Fri 25/12

19:40-15:50

1 stop25h 10m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£583

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Wed 7/10

14:00-11:33

1 stop26h 33m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£585

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Mon 12/10

18:00-14:30

3 stops49h 30m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£615

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Sun 18/10

18:15-09:32

3 stops44h 17m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£615

Flights are sorted by cheapest return flights first.

Deals found on 29/9

Showing 1-10 of 22 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 50% 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 £480.

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 £666, 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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