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Cheap flights from London Gatwick Airport to Philadelphia from £347

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 22/8. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — PHL
27 Jul — 3 Aug1
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 27 June 2026.

Wed 15/712:20
LGW
-
PHL
1 stop25h 10m
JetBlue
Sat 25/720:55
PHL
-
LGW
1 stop31h 40m
JetBlue
Deal found 26/6£619
Thu 10/920:35
LGW
-
PHL
3 stops29h 57m
Multiple Airlines
Wed 23/910:50
PHL
-
LGW
2 stops17h 35m
Multiple Airlines
Deal found 26/6£620
Wed 25/1111:15
LGW
-
PHL
1 stop34h 29m
Iberia
Sun 29/1119:50
PHL
-
LGW
1 stop18h 10m
Iberia
Deal found 25/6£622
Mon 27/712:20
LGW
-
PHL
1 stop12h 40m
JetBlue
Tue 4/809:21
PHL
-
LGW
1 stop19h 14m
JetBlue
Deal found 26/6£629
Mon 6/708:40
LGW
-
PHL
1 stop15h 15m
Multiple Airlines
Mon 13/720:25
PHL
-
LGW
1 stop18h 40m
Multiple Airlines
Deal found 23/6£629
Fri 24/712:20
LGW
-
PHL
1 stop12h 40m
JetBlue
Tue 28/709:26
PHL
-
LGW
1 stop19h 09m
JetBlue
Deal found 24/6£631
Thu 8/1020:40
LGW
-
PHL
1 stop26h 10m
Iberia
Tue 13/1020:00
PHL
-
LGW
1 stop33h 40m
Iberia
Deal found 25/6£633
Fri 10/709:50
LGW
-
PHL
1 stop14h 05m
Multiple Airlines
Sat 25/720:25
PHL
-
LGW
1 stop10h 15m
Multiple Airlines
Deal found 24/6£634
Fri 10/712:20
LGW
-
PHL
1 stop12h 40m
JetBlue
Thu 16/709:20
PHL
-
LGW
1 stop19h 15m
JetBlue
Deal found 25/6£635
Thu 10/914:30
LGW
-
PHL
1 stop29h 39m
Iberia
Thu 24/916:15
PHL
-
LGW
1 stop22h 45m
Iberia
Deal found 25/6£636
Tue 14/714:00
LGW
-
PHL
1 stop35h 00m
Multiple Airlines
Tue 28/716:30
PHL
-
LGW
2 stops36h 30m
Multiple Airlines
Deal found 25/6£637

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 27 June 2026.

Round-trip from

£619

One-way from

£347

Popular in

July

Cheapest in

September

Average price

£717
JetBlue
  • JetBlue
  • 15/7-25/7
  • 2 total stops
  • 56h 50m total
  • London to Philadelphia
Search Deals
JetBlue
  • JetBlue
  • 22/8
  • 1 total stop
  • 25h 02m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 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 27 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

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 10/9

20:35-21:32

3 stops29h 57m

Philadelphia

Wed 23/9

10:50-09:25

2 stops17h 35m

£620

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sat 26/9

12:05-09:50

2 stops26h 45m

Philadelphia

Mon 26/10

15:30-15:45

2 stops20h 15m

£670

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Tue 6/10

15:40-22:32

2 stops35h 52m

Philadelphia

Tue 13/10

15:25-14:40

2 stops18h 15m

£671

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Tue 29/9

16:25-22:32

2 stops35h 07m

Philadelphia

Mon 5/10

06:00-09:45

2 stops22h 45m

£678
Fastest return journey

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Tue 14/7

11:30-11:16

2 stops28h 46m

Philadelphia

Mon 20/7

16:13-10:10

1 stop12h 57m

£684

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sun 20/9

15:40-22:32

2 stops35h 52m

Philadelphia

Tue 6/10

15:25-14:40

2 stops18h 15m

£684

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 10/9

10:35-09:50

2 stops28h 15m

Philadelphia

Thu 24/9

06:00-09:45

2 stops22h 45m

£696

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 3/9

11:30-23:59

2 stops41h 29m

Philadelphia

Mon 7/9

19:50-10:40

1 stop33h 50m

£714

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 10/9

21:20-22:32

3 stops30h 12m

Philadelphia

Thu 24/9

10:45-09:45

2 stops18h 00m

£728

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 2/9

14:30-13:08

1 stop27h 38m

Philadelphia

Sun 6/9

18:15-21:35

1 stop22h 20m

£745

Flights are sorted by cheapest return flights first.

Deals found on 23/6

Showing 1-10 of 18 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
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 £670, 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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