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Cheap flights from Philadelphia to London from $354

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to London departing on 4/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Philadelphia to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
8:25 am - 2:40 pm
PHL
-
LGW
25h 15m
2 stops
Icelandair Logo
1:00 pm - 7:34 am
LGW
-
PHL
23h 34m
2 stops
$818Icelandair
Tue, Apr 28 - Thu, May 7
Icelandair Logo
8:25 am - 2:40 pm
PHL
-
LGW
25h 15m
2 stops
Icelandair Logo
1:00 pm - 7:34 am
LGW
-
PHL
23h 34m
2 stops
$819Icelandair
Tue, Apr 28 - Thu, May 7
Icelandair Logo
8:25 am - 2:40 pm
PHL
-
LGW
25h 15m
2 stops
Icelandair Logo
1:00 pm - 7:34 am
LGW
-
PHL
23h 34m
2 stops
$824Icelandair
Tue, May 5 - Tue, May 12
Icelandair Logo
8:28 am - 2:40 pm
PHL
-
LGW
25h 12m
2 stops
Icelandair Logo
3:40 pm - 9:50 am
LGW
-
PHL
23h 10m
2 stops
$825Icelandair
Tue, Sep 8 - Tue, Sep 22
Icelandair Logo
7:00 pm - 2:40 pm
PHL
-
LGW
14h 40m
2 stops
Icelandair Logo
3:40 pm - 9:50 am
LGW
-
PHL
23h 10m
2 stops
$826Icelandair
Mon, Sep 14 - Tue, Sep 22
Icelandair Logo
8:28 am - 2:40 pm
PHL
-
LGW
25h 12m
2 stops
Icelandair Logo
3:40 pm - 10:32 pm
LGW
-
PHL
35h 52m
2 stops
$827Icelandair
Tue, Sep 8 - Mon, Sep 14
Icelandair Logo
10:45 am - 2:40 pm
PHL
-
LGW
22h 55m
2 stops
Icelandair Logo
3:40 pm - 10:32 pm
LGW
-
PHL
35h 52m
2 stops
$828Icelandair
Wed, Sep 23 - Mon, Sep 28
Multiple Airlines Logo
8:25 pm - 11:05 am
PHL
-
LGW
9h 40m
1 stop
Multiple Airlines Logo
11:55 am - 6:55 pm
LGW
-
PHL
12h 00m
1 stop
$833Multiple Airlines
Tue, Sep 29 - Tue, Oct 13
Icelandair Logo
6:33 pm - 2:40 pm
PHL
-
LGW
15h 07m
2 stops
Icelandair Logo
3:40 pm - 7:35 am
LGW
-
PHL
44h 55m
2 stops
$834Icelandair
Mon, Apr 20 - Wed, Apr 29
JetBlue Logo
8:28 am - 9:35 am
PHL
-
LGW
20h 07m
1 stop
JetBlue Logo
12:20 pm - 8:00 pm
LGW
-
PHL
12h 40m
1 stop
$836JetBlue
Sun, Jul 26 - Mon, Aug 31

TAP AIR PORTUGAL flights from Philadelphia to London Gatwick Airport

Our best TAP AIR PORTUGAL deals on Philadelphia to London Gatwick Airport flight tickets
TAP AIR PORTUGAL
May 10
PHL8:24 amPhiladelphia
31h 01m
2 stops
LGW8:25 pmLondon Gatwick
May 16
LGW9:15 pmLondon Gatwick
39h 19m
2 stops
PHL7:34 amPhiladelphia
$915
TAP AIR PORTUGAL
Apr 20
PHL6:33 pmPhiladelphia
20h 52m
2 stops
LGW8:25 pmLondon Gatwick
Apr 29
LGW10:35 amLondon Gatwick
26h 00m
3 stops
PHL7:35 amPhiladelphia
$1,005

Icelandair flights from Philadelphia to London Gatwick Airport

Our best Icelandair deals on Philadelphia to London Gatwick Airport flight tickets
Icelandair
Apr 28
PHL8:25 amPhiladelphia
25h 15m
2 stops
LGW2:40 pmLondon Gatwick
May 7
LGW1:00 pmLondon Gatwick
23h 34m
2 stops
PHL7:34 amPhiladelphia
$818
Icelandair
Apr 28
PHL8:25 amPhiladelphia
25h 15m
2 stops
LGW2:40 pmLondon Gatwick
May 7
LGW1:00 pmLondon Gatwick
23h 34m
2 stops
PHL7:34 amPhiladelphia
$819
Icelandair
May 5
PHL8:25 amPhiladelphia
25h 15m
2 stops
LGW2:40 pmLondon Gatwick
May 12
LGW1:00 pmLondon Gatwick
23h 34m
2 stops
PHL7:34 amPhiladelphia
$824

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to London Gatwick Airport 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, momondo users made 832,500 searches. Data last updated April 6, 2026.
Use the filters below to find and compare flights from Philadelphia to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Tue 4/28

8:25 am-2:40 pm

2 stops25h 15m

London Gatwick

Thu 5/7

1:00 pm-7:34 am

2 stops23h 34m

$818

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Tue 4/28

8:25 am-2:40 pm

2 stops25h 15m

London Gatwick

Thu 5/7

1:00 pm-7:34 am

2 stops23h 34m

$819

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Tue 5/5

8:25 am-2:40 pm

2 stops25h 15m

London Gatwick

Tue 5/12

1:00 pm-7:34 am

2 stops23h 34m

$824

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Tue 9/8

8:28 am-2:40 pm

2 stops25h 12m

London Gatwick

Tue 9/22

3:40 pm-9:50 am

2 stops23h 10m

$825

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 9/14

7:00 pm-2:40 pm

2 stops14h 40m

London Gatwick

Tue 9/22

3:40 pm-9:50 am

2 stops23h 10m

$826

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Tue 9/8

8:28 am-2:40 pm

2 stops25h 12m

London Gatwick

Mon 9/14

3:40 pm-10:32 pm

2 stops35h 52m

$827

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Wed 9/23

10:45 am-2:40 pm

2 stops22h 55m

London Gatwick

Mon 9/28

3:40 pm-10:32 pm

2 stops35h 52m

$828
Quickest round-trip

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Tue 9/29

8:25 pm-11:05 am

1 stop9h 40m

London Gatwick

Tue 10/13

11:55 am-6:55 pm

1 stop12h 00m

$833

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 4/20

6:33 pm-2:40 pm

2 stops15h 07m

London Gatwick

Wed 4/29

3:40 pm-7:35 am

2 stops44h 55m

$834

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Sun 7/26

8:28 am-9:35 am

1 stop20h 07m

London Gatwick

Mon 8/31

12:20 pm-8:00 pm

1 stop12h 40m

$836

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from Philadelphia to London Gatwick Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Philadelphia to London Gatwick Airport flights?

You could potentially save up to 5% on your flight if you consider stops on a Philadelphia to London Gatwick Airport flight.

When to book flights from Philadelphia to London Gatwick Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to London Gatwick Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to London Gatwick Airport (PHL to LGW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to London Gatwick Airport

Fastest flight time

11h 30m

Direct flights

None
The fastest flight from Philadelphia to London Gatwick Airport takes 11h 30m
There are no direct flights from Philadelphia to London Gatwick Airport. There are no popular flight routes from Philadelphia to London Gatwick Airport.
Search flight deals

Frequently asked questions about flying from Philadelphia to London Gatwick Airport

  • How far is Philadelphia to London Gatwick by plane?

    The straight-line distance from Philadelphia to London Gatwick is 3544.3 mi. Typically, this will take 11h 30m by plane in normal conditions.

  • When did momondo last update prices for flights from Philadelphia Airport to London Gatwick Airport?

    Prices for flights from Philadelphia Airport to London Gatwick Airport refresh daily.

  • How many operators does momondo search for flights from Philadelphia Airport to London Gatwick Airport?

  • How old do you have to be to fly from Philadelphia Airport to London Gatwick Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to London Gatwick Airport.

  • What documentation or ID do you need to fly to London Gatwick Airport?

    The required travel and health documents for your London Gatwick Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Gatwick Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Philadelphia to London Gatwick Airport?

Best airlines flying from Philadelphia to London Gatwick Airport

Compare and see reviews for airlines that fly from Philadelphia to London Gatwick Airport with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $614Free CancellationRating
7.2
2,917 reviews
Search JetBlue flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Luton
Dover
Hayes
Slough
Wembley
Crawley
Stansted
Croydon
Dartford
Brentwood
Cobham
Folkestone
Guildford
Romford
Harrow
Watford
Richmond

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to London?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Philadelphia to London. momondo saves you time and could save you money on your trip.

Can I find flights from Philadelphia to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Philadelphia to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Philadelphia to London?

momondo helps you find the best flight between Philadelphia and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Philadelphia to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Philadelphia and alert you when they change.

An easier way to manage your London Gatwick Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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