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Cheap flights from London Gatwick Airport to Philadelphia from £306

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — PHL
9 May — 16 May1
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 9 April 2026.

Mon 8/612:20
LGW
-
PHL
1 stop11h 30m
JetBlue
Tue 4/808:28
PHL
-
LGW
1 stop20h 07m
JetBlue
Deal found 5/4£547
Mon 8/612:20
LGW
-
PHL
1 stop11h 30m
JetBlue
Mon 3/808:28
PHL
-
LGW
1 stop20h 07m
JetBlue
Deal found 5/4£551
Tue 23/612:20
LGW
-
PHL
1 stop24h 18m
JetBlue
Sun 5/720:55
PHL
-
LGW
1 stop31h 40m
JetBlue
Deal found 7/4£564
Sat 23/512:20
LGW
-
PHL
1 stop11h 32m
JetBlue
Mon 1/609:21
PHL
-
LGW
1 stop19h 14m
JetBlue
Deal found 4/4£568
Fri 22/512:20
LGW
-
PHL
1 stop25h 11m
JetBlue
Fri 29/509:21
PHL
-
LGW
1 stop19h 14m
JetBlue
Deal found 7/4£579
Tue 2/612:20
LGW
-
PHL
1 stop11h 32m
JetBlue
Thu 11/608:28
PHL
-
LGW
1 stop20h 07m
JetBlue
Deal found 5/4£586
Tue 9/612:20
LGW
-
PHL
1 stop25h 10m
JetBlue
Sun 14/620:55
PHL
-
LGW
1 stop31h 40m
JetBlue
Deal found 5/4£599
Tue 19/510:00
LGW
-
PHL
2 stops18h 45m
Multiple Airlines
Tue 26/512:00
PHL
-
LGW
2 stops23h 25m
Multiple Airlines
Deal found 4/4£603
Fri 17/409:50
LGW
-
PHL
1 stop14h 05m
Multiple Airlines
Mon 20/420:25
PHL
-
LGW
1 stop9h 50m
Multiple Airlines
Deal found 7/4£605
Sat 23/512:20
LGW
-
PHL
1 stop25h 11m
JetBlue
Fri 29/509:21
PHL
-
LGW
1 stop19h 14m
JetBlue
Deal found 6/4£606
Tue 5/510:00
LGW
-
PHL
2 stops18h 45m
Multiple Airlines
Tue 12/512:00
PHL
-
LGW
2 stops23h 25m
Multiple Airlines
Deal found 5/4£609

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 9 April 2026.

Round-trip from

£547

One-way from

£306

Popular in

December

Cheapest in

September

Average price

£622
JetBlue
  • JetBlue
  • 8/6-4/8
  • 2 total stops
  • 31h 37m total
  • London to Philadelphia
Search Deals
3/6
  • 3/6
  • 1 total stop
  • 14h 29m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£8 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 April 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 9 April 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

Tue 5/5

21:15-07:34

3 stops39h 19m

Philadelphia

Mon 11/5

18:33-09:45

3 stops34h 12m

£682

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Tue 21/4

10:35-07:35

2 stops26h 00m

Philadelphia

Tue 28/4

18:33-15:35

2 stops16h 02m

£704

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sat 19/9

12:05-09:50

2 stops26h 45m

Philadelphia

Fri 2/10

15:25-20:25

3 stops24h 00m

£715

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 11/5

12:05-07:34

2 stops24h 29m

Philadelphia

Mon 18/5

19:37-20:25

2 stops19h 48m

£746

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sat 8/8

12:05-07:38

2 stops24h 33m

Philadelphia

Mon 24/8

08:28-15:35

2 stops26h 07m

£758

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 8/6

12:05-08:30

2 stops25h 25m

Philadelphia

Tue 4/8

08:28-09:45

2 stops20h 17m

£797

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Tue 19/5

21:15-08:31

3 stops40h 16m

Philadelphia

Tue 26/5

19:47-20:25

3 stops19h 38m

£866
Fastest return journey

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sat 18/7

10:25-23:16

2 stops17h 51m

Philadelphia

Tue 28/7

13:10-09:25

2 stops15h 15m

£886

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sat 1/8

10:25-23:16

2 stops17h 51m

Philadelphia

Thu 6/8

13:10-09:25

2 stops15h 15m

£887

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 27/5

10:35-18:52

2 stops37h 17m

Philadelphia

Thu 27/8

08:28-09:45

2 stops20h 17m

£935

Flights are sorted by cheapest return flights first.

Deals found on 8/4

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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

What is the cheapest month to book a flight from London Gatwick Airport to Philadelphia?

Currently, April is the cheapest month in which you can book a flight from London Gatwick Airport to Philadelphia (average of £159). Flying from London Gatwick Airport to Philadelphia in July is currently the most expensive (average of £344). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated 9 April 2026.
Check out reviews from past customers who have flown with British Airways from London Gatwick Airport to Philadelphia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,865 reviews
Check prices

Overall

6.7

Comfort

6.8

Entertainment

6.4

Food

6.4

Boarding

6.9

Crew

7.7

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,865 reviews
British Airways
6.7
Okay
7,865 reviews
Check prices

Overall

6.7

Comfort

6.8

Entertainment

6.4

Food

6.4

Boarding

6.9

Crew

7.7

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

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 1 airline has 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 £682, TAP AIR PORTUGAL can have you in Philadelphia from London Gatwick Airport in 39h 19m. The distance from London Gatwick Airport to Philadelphia is about 3551 mi.

  • What is the cheapest airline to fly from London Gatwick Airport to Philadelphia round-trip?

    Our cheapest airline available from London Gatwick Airport to Philadelphia is British Airways. Our recent data shows that you can find tickets from as low as £451 on this airline.

  • 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.

  • What is the cheapest month to book a flight from London Gatwick Airport to Philadelphia?

    Currently, April is the cheapest month in which you can book a flight from London Gatwick Airport to Philadelphia (average of £159). Flying from London Gatwick Airport to Philadelphia in July is currently the most expensive (average of £344). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Gatwick to Philadelphia

Discover the top airline that operate flights from Gatwick to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 9 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£451Average£659FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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