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Cheap flights from London Gatwick Airport to Philadelphia from £426

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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — PHL
6 Sep — 13 Sep1
1 adult

Cheap 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 September 2025.

Round-trip from

£471

One-way from

£426

Popular in

August

Cheapest in

September

Average price

£418
Iberia
  • Iberia
  • 3/11-16/11
  • 3 total stops
  • 58h 41m total
  • London to Philadelphia
Search Deals
JetBlue
  • JetBlue
  • 24/9
  • 1 total stop
  • 14h 40m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£14 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Gatwick to Philadelphia

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 September 2025.

Mon 8/914:00LGW - PHL
1 stop14h 59mMultiple Airlines
Mon 15/914:07PHL - LGW
2 stops35h 13mMultiple Airlines
Deal found 1/9£471
Mon 8/914:00LGW - PHL
1 stop15h 52mMultiple Airlines
Thu 11/912:43PHL - LGW
1 stop16h 17mMultiple Airlines
Deal found 31/8£472
Thu 16/1012:10LGW - PHL
1 stop14h 45mJetBlue
Thu 23/1015:31PHL - LGW
1 stop13h 04mJetBlue
Deal found 1/9£476
Fri 5/914:00LGW - PHL
1 stop28h 02mMultiple Airlines
Mon 8/920:43PHL - LGW
1 stop32h 17mMultiple Airlines
Deal found 30/8£477
Wed 1/1014:00LGW - PHL
1 stop22h 35mMultiple Airlines
Mon 27/1005:30PHL - LGW
2 stops24h 20mMultiple Airlines
Deal found 31/8£479
Wed 26/1111:20LGW - PHL
1 stop26h 15mBritish Airways
Sun 30/1122:15PHL - LGW
1 stop28h 15mBritish Airways
Deal found 30/8£483
Tue 14/1007:40LGW - PHL
2 stops30h 12mMultiple Airlines
Tue 21/1013:58PHL - LGW
1 stop15h 02mMultiple Airlines
Deal found 30/8£485
Thu 27/1118:40LGW - PHL
2 stops31h 41mSWISS
Thu 4/1217:40PHL - LGW
2 stops19h 10mSWISS
Deal found 30/8£486
Tue 14/1018:35LGW - PHL
2 stops26h 25mSWISS
Tue 21/1017:35PHL - LGW
2 stops19h 15mSWISS
Deal found 30/8£494
Mon 3/1114:00LGW - PHL
1 stop27h 53mMultiple Airlines
Sun 16/1122:32PHL - LGW
1 stop30h 28mMultiple Airlines
Deal found 29/8£494

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 September 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Philadelphia that are best for you.

Fly from

Gatwick

Fly to

Philadelphia

Route

Depart

Return

Price

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 3/11

11:20-08:35

1 stop26h 15m

Philadelphia

Sun 16/11

21:24-10:50

2 stops32h 26m

£471

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 16/10

12:10-21:55

1 stop14h 45m

Philadelphia

Thu 23/10

15:31-09:35

1 stop13h 04m

£476

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 1/10

14:00-07:35

1 stop22h 35m

Philadelphia

Mon 27/10

05:30-09:50

2 stops24h 20m

£479

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 26/11

11:20-08:35

1 stop26h 15m

Philadelphia

Sun 30/11

22:15-07:30

1 stop28h 15m

£483

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Tue 14/10

07:40-08:52

2 stops30h 12m

Philadelphia

Tue 21/10

13:58-10:00

1 stop15h 02m

£485

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 27/11

18:40-21:21

2 stops31h 41m

Philadelphia

Thu 4/12

17:40-17:50

2 stops19h 10m

£486

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Tue 14/10

18:35-16:00

2 stops26h 25m

Philadelphia

Tue 21/10

17:35-17:50

2 stops19h 15m

£494

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Fri 21/11

14:00-00:39

1 stop15h 39m

Philadelphia

Mon 15/12

12:32-10:00

1 stop16h 28m

£494

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sun 5/10

20:40-19:55

2 stops28h 15m

Philadelphia

Sun 30/11

19:45-10:50

2 stops34h 05m

£496

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 24/9

12:10-21:50

1 stop14h 40m

£426

Flights are sorted by cheapest return flights first.

Deals found on 30/8

Showing 1-10 of 19 results
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

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

Currently, March is the cheapest month in which you can book a flight from London Gatwick Airport to Philadelphia (average of £648). Flying from London Gatwick Airport to Philadelphia in July is currently the most expensive (average of £839). 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.

What is the cheapest time of day to fly from LGW to PHL?

Find hourly flight availability from Gatwick to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 September 2025.

One of the essential ways to save on airfare from London Gatwick Airport to Philadelphia is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 15% on airfare.

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 1 September 2025.
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
7,333 reviews
Check prices

Comfort

6.7

Crew

7.6

Overall

6.7

Boarding

6.9

Entertainment

6.4

Food

6.3

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.
British Airways
6.7
Okay
7,333 reviews
British Airways
6.7
Okay
7,333 reviews
Check prices

Comfort

6.7

Crew

7.6

Overall

6.7

Boarding

6.9

Entertainment

6.4

Food

6.3

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

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 £476, JetBlue can have you in Philadelphia from London Gatwick Airport in 14h 45m. The distance from London Gatwick Airport to Philadelphia is about 3551 mi. This flight may include one or multiple stops.

  • 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 £486 on this airline. This flight start at 17% lower than the current average price 3 months from now.

  • 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, March is the cheapest month in which you can book a flight from London Gatwick Airport to Philadelphia (average of £648). Flying from London Gatwick Airport to Philadelphia in July is currently the most expensive (average of £839). 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

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Alternative routes for Gatwick to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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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 1 September 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£486Average£580FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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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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