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Cheap flights from London Gatwick Airport to Philadelphia from £342

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/6. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — PHL
4 Jul — 11 Jul1
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
Explore the most affordable flight options available from Gatwick to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 June 2026.

Fri 9/1014:00
LGW
-
PHL
1 stop15h 20m
Multiple Airlines
Fri 16/1010:15
PHL
-
LGW
1 stop18h 45m
Multiple Airlines
Deal found 1/6£625
Thu 25/614:00
LGW
-
PHL
1 stop15h 44m
Multiple Airlines
Sat 11/721:16
PHL
-
LGW
1 stop31h 44m
Multiple Airlines
Deal found 1/6£631
Sat 10/1014:00
LGW
-
PHL
1 stop24h 10m
Multiple Airlines
Thu 15/1015:25
PHL
-
LGW
1 stop13h 35m
Multiple Airlines
Deal found 1/6£634
Sun 14/614:00
LGW
-
PHL
1 stop15h 44m
Multiple Airlines
Fri 3/712:54
PHL
-
LGW
1 stop16h 06m
Multiple Airlines
Deal found 30/5£635
Mon 29/612:20
LGW
-
PHL
1 stop13h 14m
JetBlue
Tue 7/708:35
PHL
-
LGW
1 stop20h 00m
JetBlue
Deal found 1/6£636
Fri 19/612:20
LGW
-
PHL
1 stop12h 40m
JetBlue
Wed 24/608:28
PHL
-
LGW
1 stop20h 07m
JetBlue
Deal found 2/6£638
Sat 13/614:00
LGW
-
PHL
1 stop15h 08m
Multiple Airlines
Tue 30/613:28
PHL
-
LGW
1 stop15h 32m
Multiple Airlines
Deal found 30/5£638
Wed 24/614:00
LGW
-
PHL
1 stop23h 51m
Multiple Airlines
Mon 13/712:46
PHL
-
LGW
1 stop16h 14m
Multiple Airlines
Deal found 1/6£639
Thu 25/614:00
LGW
-
PHL
1 stop15h 44m
Multiple Airlines
Tue 7/722:59
PHL
-
LGW
2 stops30h 01m
Multiple Airlines
Deal found 1/6£640
Sat 13/614:00
LGW
-
PHL
1 stop15h 08m
Multiple Airlines
Sun 13/920:44
PHL
-
LGW
2 stops32h 16m
Multiple Airlines
Deal found 1/6£641
Wed 7/1010:35
LGW
-
PHL
2 stops28h 15m
TAP AIR PORTUGAL
Wed 21/1010:45
PHL
-
LGW
2 stops18h 00m
TAP AIR PORTUGAL
Deal found 2/6£644

Find flight deals from Gatwick to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 4 June 2026.

Round-trip from

£625

One-way from

£342

Popular in

December

Cheapest in

September

Average price

£607
9/10-16/10
  • 9/10-16/10
  • 2 total stops
  • 34h 05m total
  • London to Philadelphia
Search Deals
JetBlue
  • JetBlue
  • 20/6
  • 1 total stop
  • 12h 40m total
  • London to Philadelphia
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Gatwick 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, Cheapflights users made 858,174 searches. Data last updated 4 June 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
Fastest return journey

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 14/10

12:05-09:50

2 stops26h 45m

Philadelphia

Tue 20/10

15:25-15:35

2 stops19h 10m

£657

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 5/10

12:05-09:50

2 stops26h 45m

Philadelphia

Fri 16/10

15:25-15:40

2 stops19h 15m

£658

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sun 11/10

21:15-09:50

2 stops41h 35m

Philadelphia

Fri 23/10

06:00-15:40

2 stops28h 40m

£661

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Fri 16/10

10:35-09:50

2 stops28h 15m

Philadelphia

Fri 23/10

06:00-15:40

2 stops28h 40m

£664

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Fri 16/10

10:35-09:50

2 stops28h 15m

Philadelphia

Tue 20/10

10:45-09:45

2 stops18h 00m

£664

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Fri 4/9

10:35-07:38

2 stops26h 03m

Philadelphia

Mon 7/9

08:28-09:45

2 stops20h 17m

£731

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 10/9

10:35-09:50

2 stops28h 15m

Philadelphia

Thu 24/9

15:25-20:25

3 stops24h 00m

£794

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 5/8

15:40-07:38

2 stops20h 58m

Philadelphia

Tue 11/8

08:28-14:40

2 stops25h 12m

£813

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Fri 10/7

09:25-17:53

2 stops37h 28m

Philadelphia

Sun 26/7

11:38-08:25

2 stops15h 47m

£869

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 8/10

10:35-09:50

2 stops28h 15m

Philadelphia

Tue 13/10

15:25-20:25

3 stops24h 00m

£869

Flights are sorted by cheapest return flights first.

Deals found on 31/5

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How often are flights from London to Philadelphia delayed?

About 0% of weekly flights between London and Philadelphia have experienced delays in the past year, with the average delay time being 0 minutes.

What is the most punctual flight time for London to Philadelphia flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 £657, TAP AIR PORTUGAL can have you in Philadelphia from London Gatwick Airport in 26h 45m. 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

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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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