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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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — PHL
27 Jun — 4 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 28 May 2026.

Mon 17/820:25
LGW
-
PHL
3 stops30h 09m
Multiple Airlines
Sun 23/807:00
PHL
-
LGW
3 stops32h 10m
Multiple Airlines
Deal found 25/5£608
Mon 22/617:00
LGW
-
PHL
2 stops30h 55m
Multiple Airlines
Mon 29/620:25
PHL
-
LGW
1 stop18h 40m
Multiple Airlines
Deal found 25/5£610
Tue 23/612:20
LGW
-
PHL
1 stop12h 40m
JetBlue
Tue 7/708:35
PHL
-
LGW
1 stop20h 00m
JetBlue
Deal found 24/5£610
Tue 7/712:20
LGW
-
PHL
1 stop12h 45m
JetBlue
Sat 11/720:55
PHL
-
LGW
1 stop31h 40m
JetBlue
Deal found 25/5£612
Fri 12/614:00
LGW
-
PHL
1 stop23h 51m
Multiple Airlines
Fri 19/620:37
PHL
-
LGW
2 stops32h 23m
Multiple Airlines
Deal found 27/5£613
Fri 29/514:00
LGW
-
PHL
2 stops25h 41m
Multiple Airlines
Sun 19/712:46
PHL
-
LGW
1 stop16h 14m
Multiple Airlines
Deal found 28/5£619
Wed 14/1012:05
LGW
-
PHL
2 stops26h 45m
TAP AIR PORTUGAL
Mon 26/1015:30
PHL
-
LGW
2 stops14h 20m
TAP AIR PORTUGAL
Deal found 28/5£621
Mon 21/909:25
LGW
-
PHL
2 stops37h 29m
SWISS
Wed 30/911:20
PHL
-
LGW
2 stops16h 05m
SWISS
Deal found 24/5£625
Fri 3/714:00
LGW
-
PHL
1 stop23h 51m
Multiple Airlines
Mon 16/1117:57
PHL
-
LGW
1 stop31h 03m
Multiple Airlines
Deal found 25/5£626
Fri 26/612:20
LGW
-
PHL
1 stop12h 40m
JetBlue
Sun 28/621:29
PHL
-
LGW
1 stop31h 06m
JetBlue
Deal found 26/5£630
Mon 22/614:00
LGW
-
PHL
1 stop23h 51m
Multiple Airlines
Tue 7/709:29
PHL
-
LGW
1 stop19h 31m
Multiple Airlines
Deal found 24/5£632

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 28 May 2026.

Round-trip from

£605

One-way from

£342

Popular in

December

Cheapest in

September

Average price

£604
9/6-5/8
  • 9/6-5/8
  • 2 total stops
  • 39h 28m total
  • London to Philadelphia
Search Deals
8/6
  • 8/6
  • 2 total stops
  • 30h 04m 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 (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 28 May 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

Mon 20/7

12:20-20:00

1 stop12h 40m

Philadelphia

Thu 23/7

09:20-09:35

1 stop19h 15m

£799

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sun 4/10

12:05-09:50

2 stops26h 45m

Philadelphia

Sun 11/10

19:00-15:10

2 stops15h 10m

£852

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 10/9

13:00-22:32

2 stops14h 32m

Philadelphia

Thu 24/9

10:45-14:40

2 stops22h 55m

£880

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

£889

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sun 4/10

10:35-09:50

2 stops28h 15m

Philadelphia

Sun 11/10

15:25-20:25

3 stops24h 00m

£1,011

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Fri 17/7

09:25-17:53

2 stops37h 28m

Philadelphia

Sat 15/8

11:03-08:20

2 stops16h 17m

£1,160

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 17/6

12:05-07:38

2 stops24h 33m

Philadelphia

Thu 9/7

08:50-09:45

2 stops19h 55m

£1,280

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 17/6

12:05-07:38

2 stops24h 33m

Philadelphia

Thu 9/7

08:50-09:45

2 stops19h 55m

£1,283
Cheapest one-way

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 15/10

14:00-00:20

1 stop15h 20m

£396

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sat 17/10

12:05-09:50

2 stops26h 45m

£455

Flights are sorted by cheapest return flights first.

Deals found on 25/5

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 £799, JetBlue can have you in Philadelphia from London Gatwick Airport in 12h 40m. The distance from London Gatwick Airport to Philadelphia is about 3551 mi. This flight may include one or multiple stops.

  • 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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