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Cheap flights from London Gatwick Airport to Philadelphia from £352

LGW — PHL
8 Oct — 15 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

Sat 12/914:00 -
1 stop15h 09m
Sun 27/917:45 -
1 stop35h 15m
Deal found 3/9£596
Mon 19/1008:40 -
1 stop15h 15m
Sun 1/1117:40 -
1 stop10h 35m
Deal found 5/9£596
Fri 23/1014:00 -
1 stop14h 43m
Thu 12/1110:37 -
1 stop15h 13m
Deal found 3/9£598
Fri 4/914:00 -
1 stop34h 31m
Tue 10/1117:22 -
2 stops32h 33m
Deal found 3/9£599
Mon 19/1008:40 -
1 stop15h 15m
Mon 2/1117:40 -
1 stop10h 35m
Deal found 7/9£601
Tue 20/1014:00 -
1 stop15h 08m
Sat 7/1117:20 -
2 stops33h 55m
Deal found 3/9£601
Sat 5/914:00 -
1 stop14h 59m
Wed 11/1108:30 -
2 stops41h 20m
Deal found 3/9£603
Fri 23/1014:00 -
1 stop14h 43m
Sun 25/1005:15 -
1 stop23h 00m
Deal found 7/9£604
Sat 3/1014:00 -
1 stop15h 09m
Fri 9/1020:02 -
2 stops32h 58m
Deal found 7/9£607
Sun 18/1018:35 -
2 stops26h 30m
Sun 25/1018:40 -
2 stops19h 10m
Deal found 3/9£607

Find flight deals from Gatwick to Philadelphia

Round-trip from

£596

One-way from

£352

Popular in

August

Cheapest in

January

Average price

£650
19/10-1/11
  • 19/10-1/11
  • 2 total stops
  • 25h 50m total
  • London to Philadelphia
Search Deals
5/11-31/12
  • 5/11-31/12
  • 1 total stop
  • 15h 42m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£66 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 September 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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Depart

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Price

Cheapest return flight

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Thu 29/10

11:00-13:53

1 stop30h 53m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£364

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Thu 1/10

14:00-09:05

1 stop24h 05m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£379
Fastest return journey

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Fri 25/9

14:00-00:09

1 stop15h 09m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£392

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Fri 18/9

14:00-00:09

1 stop15h 09m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£400

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Mon 28/9

14:00-09:30

1 stop24h 30m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£413

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Sat 3/10

14:00-00:09

1 stop15h 09m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£413

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

£415

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Mon 12/10

14:00-09:32

1 stop24h 32m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£446

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Mon 1/2

10:00-20:34

2 stops15h 34m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£451

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Thu 3/12

10:40-08:39

2 stops26h 59m

Philadelphia

Thu 10/12

09:30-20:35

3 stops30h 05m

£664

Flights are sorted by cheapest return flights first.

Deals found on 7/9

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 57% 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 £471.

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 £664, TAP AIR PORTUGAL can have you in Philadelphia from London Gatwick Airport in 26h 59m. 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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How does Cheapflights help users find flights from Gatwick to Philadelphia?

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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