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Cheap flights from London Gatwick Airport to Philadelphia from £374

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 15/7. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — PHL
9 Jul — 16 Jul1
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 4 July 2025.

Round-trip from

£465

One-way from

£374

Popular in

July

Cheapest in

September

Average price

£788
14/8-16/8
  • 14/8-16/8
  • 2 total stops
  • 57h 41m total
  • London to Philadelphia
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15/7
  • 15/7
  • 3 total stops
  • 43h 43m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£71 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
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Average for round-trip flights in July 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 4 July 2025.

Thu 14/810:00LGW - PHL
1 stop28h 46mMultiple Airlines
Sat 16/821:00PHL - LGW
1 stop28h 55mMultiple Airlines
Deal found 3/7£465
Mon 25/812:05LGW - PHL
2 stops26h 35mTAP AIR PORTUGAL
Tue 2/910:15PHL - LGW
2 stops18h 30mTAP AIR PORTUGAL
Deal found 2/7£510
Wed 16/706:30LGW - PHL
1 stop14h 40mBritish Airways
Wed 30/721:10PHL - LGW
1 stop13h 00mBritish Airways
Deal found 2/7£532
Thu 7/812:10LGW - PHL
1 stop26h 30mIcelandair
Sat 16/817:40PHL - LGW
1 stop10h 55mIcelandair
Deal found 2/7£546
Wed 9/712:10LGW - PHL
1 stop26h 28mJetBlue
Wed 16/710:15PHL - LGW
1 stop18h 20mJetBlue
Deal found 3/7£569
Sun 17/811:35LGW - PHL
1 stop33h 15mIberia
Wed 27/820:25PHL - LGW
1 stop33h 25mIberia
Deal found 3/7£580

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 4 July 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

Thu 14/8

10:00-09:46

1 stop28h 46m

Philadelphia

Sat 16/8

21:00-06:55

1 stop28h 55m

£465

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 27/11

10:40-23:59

2 stops18h 19m

Philadelphia

Thu 4/12

09:25-09:50

2 stops19h 25m

£514

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 16/7

06:30-16:10

1 stop14h 40m

Philadelphia

Wed 30/7

21:10-15:10

1 stop13h 00m

£532

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 7/8

12:10-09:40

1 stop26h 30m

Philadelphia

Sat 16/8

17:40-09:35

1 stop10h 55m

£546

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 21/7

12:10-09:38

1 stop26h 28m

Philadelphia

Mon 28/7

10:15-09:35

1 stop18h 20m

£569

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sun 17/8

11:35-15:50

1 stop33h 15m

Philadelphia

Wed 27/8

20:25-10:50

1 stop33h 25m

£580

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Tue 15/7

20:00-10:43

3 stops43h 43m

£374

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 24/9

12:10-21:24

1 stop14h 14m

£483

Flights are sorted by cheapest return flights first.

Deals found on 2/7

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 4 July 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 4 July 2025.
Check out reviews from past customers who have flown with JetBlue, TAP AIR PORTUGAL, andIcelandair 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.
JetBlue
7.3
Good
2,916 reviews
Check prices

Comfort

7.6

Entertainment

7.3

Boarding

7.5

Food

6.7

Overall

7.3

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.
JetBlue
7.3
Good
2,916 reviews
JetBlue
7.3
Good
2,916 reviews
Check prices

Comfort

7.6

Entertainment

7.3

Boarding

7.5

Food

6.7

Overall

7.3

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.
TAP AIR PORTUGAL
7.1
Good
1,908 reviews
JetBlue
7.3
Good
2,916 reviews
Check prices

Comfort

7.6

Entertainment

7.3

Boarding

7.5

Food

6.7

Overall

7.3

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.
Icelandair
7.0
Good
514 reviews
JetBlue
7.3
Good
2,916 reviews
Check prices

Comfort

7.6

Entertainment

7.3

Boarding

7.5

Food

6.7

Overall

7.3

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.
Iberia
7.0
Good
2,820 reviews
JetBlue
7.3
Good
2,916 reviews
Check prices

Comfort

7.6

Entertainment

7.3

Boarding

7.5

Food

6.7

Overall

7.3

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.
British Airways
6.6
Okay
7,093 reviews
JetBlue
7.3
Good
2,916 reviews
Check prices

Comfort

7.6

Entertainment

7.3

Boarding

7.5

Food

6.7

Overall

7.3

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Geri,May 2025

RSW - BOS

Full flight, even thought I had priority A boarding, the flight was more than 1/2 full with Mint & Mosaic members, before I could board and get overhead space.

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.

  • What are the cheapest airlines flying from London Gatwick Airport to Philadelphia round-trip?

    Our cheapest airline available from London Gatwick Airport to Philadelphia is TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as £510 on this airline. Additional options worth looking into are British Airways and Icelandair, starting at £532 and £546 round-trip. These flights start at 14% 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

Browse thousands of different options on Cheapflights for your next trip

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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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£439Average£562FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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How does Cheapflights help users find flights from Gatwick to Philadelphia?

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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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