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Cheap flights from London Gatwick Airport to Philadelphia from £345

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 28/8. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — PHL
31 Jul — 7 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 1 July 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£617
Thu 30/712:20
LGW
-
PHL
1 stop25h 10m
JetBlue
Tue 4/820:55
PHL
-
LGW
1 stop31h 40m
JetBlue
Deal found 28/6£618
Fri 17/712:20
LGW
-
PHL
1 stop25h 05m
JetBlue
Mon 20/720:55
PHL
-
LGW
1 stop31h 40m
JetBlue
Deal found 1/7£618
Thu 30/712:20
LGW
-
PHL
1 stop25h 10m
JetBlue
Thu 6/809:25
PHL
-
LGW
1 stop19h 10m
JetBlue
Deal found 30/6£619
Fri 17/712:20
LGW
-
PHL
1 stop25h 05m
JetBlue
Sun 19/720:55
PHL
-
LGW
1 stop31h 40m
JetBlue
Deal found 29/6£621
Thu 10/911:35
LGW
-
PHL
1 stop14h 57m
Multiple Airlines
Wed 16/915:25
PHL
-
LGW
2 stops35h 30m
Multiple Airlines
Deal found 29/6£623
Tue 18/820:45
LGW
-
PHL
3 stops23h 04m
Multiple Airlines
Mon 31/810:05
PHL
-
LGW
3 stops25h 15m
Multiple Airlines
Deal found 29/6£624
Thu 20/812:20
LGW
-
PHL
1 stop12h 41m
JetBlue
Mon 31/809:12
PHL
-
LGW
1 stop19h 23m
JetBlue
Deal found 29/6£625
Mon 27/712:20
LGW
-
PHL
1 stop12h 40m
JetBlue
Tue 4/809:21
PHL
-
LGW
1 stop19h 14m
JetBlue
Deal found 26/6£627
Mon 13/712:20
LGW
-
PHL
1 stop12h 40m
JetBlue
Mon 20/709:20
PHL
-
LGW
1 stop19h 15m
JetBlue
Deal found 29/6£632
Tue 1/914:00
LGW
-
PHL
2 stops27h 26m
Multiple Airlines
Sat 5/913:00
PHL
-
LGW
1 stop16h 00m
Multiple Airlines
Deal found 29/6£633
Wed 8/712:20
LGW
-
PHL
1 stop12h 40m
JetBlue
Mon 13/709:20
PHL
-
LGW
1 stop19h 15m
JetBlue
Deal found 30/6£634

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 1 July 2026.

Round-trip from

£617

One-way from

£345

Popular in

July

Cheapest in

September

Average price

£736
JetBlue
  • JetBlue
  • 15/7-25/7
  • 2 total stops
  • 56h 50m total
  • London to Philadelphia
Search Deals
JetBlue
  • JetBlue
  • 28/8
  • 1 total stop
  • 24h 48m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£56 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 July 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 1 July 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

Mon 13/7

12:20-08:30

1 stop25h 10m

Philadelphia

Mon 20/7

09:20-09:35

1 stop19h 15m

£643

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 8/10

21:20-22:43

3 stops30h 23m

Philadelphia

Tue 13/10

10:45-09:45

2 stops18h 00m

£688

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sun 1/11

21:25-22:36

3 stops30h 11m

Philadelphia

Sat 7/11

10:30-09:50

2 stops18h 20m

£688

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

£694

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

£726
Fastest return journey

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sat 11/7

10:25-23:16

2 stops17h 51m

Philadelphia

Tue 14/7

17:35-16:00

2 stops17h 25m

£792

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Fri 13/11

16:40-22:36

2 stops34h 56m

Philadelphia

Mon 30/11

14:56-09:50

2 stops13h 54m

£893

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 15/7

15:40-08:30

2 stops21h 50m

Philadelphia

Sat 25/7

09:20-11:45

2 stops21h 25m

£936

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sat 14/11

16:35-22:36

2 stops35h 01m

Philadelphia

Sat 21/11

06:00-09:50

2 stops22h 50m

£944
Cheapest one-way

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 19/8

14:00-23:59

1 stop14h 59m

£405

Flights are sorted by cheapest return flights first.

Deals found on 26/6

Showing 1-10 of 16 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 £643, JetBlue can have you in Philadelphia from London Gatwick Airport in 25h 10m. 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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