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Cheap flights from London Gatwick Airport to Philadelphia from £348

LGW — PHL
18 Oct — 25 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

Tue 3/1108:40 -
2 stops20h 14m
Sun 8/1108:30 -
3 stops28h 20m
Deal found 18/9£589
Thu 29/1018:40 -
2 stops32h 30m
Thu 5/1117:40 -
2 stops19h 10m
Deal found 14/9£594
Mon 28/910:25 -
3 stops32h 10m
Mon 5/1015:30 -
2 stops19h 30m
Deal found 17/9£597
Sun 1/1108:40 -
3 stops27h 41m
Sun 8/1108:30 -
3 stops28h 20m
Deal found 17/9£601
Mon 5/1017:00 -
2 stops35h 18m
Mon 12/1008:30 -
2 stops20h 10m
Deal found 17/9£603
Mon 2/1111:55 -
2 stops34h 13m
Mon 9/1117:58 -
2 stops35h 57m
Deal found 18/9£606
Thu 22/1008:40 -
1 stop15h 15m
Wed 4/1117:40 -
1 stop9h 45m
Deal found 15/9£612
Fri 18/914:00 -
1 stop15h 09m
Fri 25/917:45 -
1 stop35h 15m
Deal found 13/9£616
Wed 23/914:00 -
1 stop24h 05m
Fri 25/917:45 -
1 stop35h 15m
Deal found 13/9£624

Find flight deals from Gatwick to Philadelphia

Round-trip from

£589

One-way from

£348

Popular in

August

Cheapest in

January

Average price

£664
3/11-8/11
  • 3/11-8/11
  • 5 total stops
  • 48h 34m total
  • London to Philadelphia
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2/11-31/12
  • 2/11-31/12
  • 2 total stops
  • 36h 30m 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
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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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Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Wed 4/11

10:00-20:03

2 stops15h 03m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£445
Fastest return journey

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Mon 26/10

09:00-17:10

1 stop12h 10m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£452

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Sun 8/11

10:00-08:20

2 stops27h 20m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£488

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Sat 7/11

10:00-20:03

2 stops15h 03m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£488

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Fri 16/10

14:00-09:32

1 stop24h 32m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£506

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Fri 1/1

18:35-16:10

2 stops26h 35m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£565

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Wed 7/10

16:25-22:45

2 stops35h 20m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£615

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Tue 29/9

15:40-09:31

2 stops46h 51m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£661

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Fri 6/11

16:40-21:11

2 stops33h 31m

Philadelphia

Tue 10/11

07:00-09:50

2 stops21h 50m

£663

LondonPhiladelphia

LGW London Gatwick - PHL Philadelphia

LGWPHL

London Gatwick

Fri 6/11

10:40-21:11

2 stops39h 31m

Philadelphia

Mon 9/11

17:58-20:35

3 stops21h 37m

£670

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 23 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 £476.

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 £663, TAP AIR PORTUGAL can have you in Philadelphia from London Gatwick Airport in 33h 31m. 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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