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Cheap flights from London to Philadelphia from £238

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Philadelphia departing on 26/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London to Philadelphia

Cheap return flights

These are some of the best return flight deals from London to Philadelphia that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from London to Philadelphia.

Cheap last-minute flights

Planning a quick getaway from London to Philadelphia? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Philadelphia, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from London to Philadelphia

Find recent return train or bus tickets from London to Philadelphia.

All return flight deals from London to Philadelphia

The cheapest plane tickets from London to Philadelphia found on KAYAK recently.
14:00 - 00:59LGW-PHL
15h 59m1 stop
10:59 - 08:05PHL-LGW
16h 06m1 stop
Fri, 28 Feb - Wed, 5 Mar
08:15 - 16:00STN-PHL
12h 45m1 stop
18:30 - 09:35PHL-STN
11h 05m1 stop
Wed, 5 Mar - Wed, 12 Mar
07:50 - 16:40LHR-PHL
13h 50m1 stop
16:05 - 07:50PHL-LHR
10h 45m1 stop
£428British Airways
Find Deal
Wed, 12 Feb - Mon, 17 Feb
09:50 - 16:35LHR-PHL
11h 45m1 stop
19:40 - 06:35PHL-LHR
6h 55mdirect
£429British Airways
Find Deal
Wed, 19 Feb - Mon, 10 Mar
13:10 - 16:20LHR-PHL
8h 10mdirect
21:21 - 09:20PHL-LHR
6h 59mdirect
£461Iberia
Find Deal
Mon, 27 Jan - Mon, 3 Feb
10:15 - 13:30LHR-PHL
8h 15mdirect
19:35 - 08:05PHL-LHR
7h 30mdirect
£490Finnair
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Wed, 29 Jan - Sun, 4 May
13:10 - 16:20LHR-PHL
8h 10mdirect
18:40 - 06:35PHL-LHR
6h 55mdirect
£494Finnair
Find Deal
Mon, 27 Jan - Wed, 12 Feb
13:10 - 16:20LHR-PHL
8h 10mdirect
18:40 - 06:35PHL-LHR
6h 55mdirect
£505Iberia
Find Deal
Wed, 29 Jan - Wed, 12 Feb
06:50 - 19:07LCY-PHL
17h 17m2 stops
15:56 - 12:45PHL-LCY
15h 49m2 stops
£637Aer Lingus
Find Deal
Wed, 29 Jan - Wed, 14 May
09:10 - 17:00LCY-PHL
11h 50m1 stop
06:00 - 08:30PHL-LCY
21h 30m2 stops
£650Aer Lingus
Find Deal
Wed, 26 Mar - Sun, 30 Mar
14:35 - 00:59LGW-PHL
39h 24m2 stops
Wed, 26 Feb
15:15 - 00:59LHR-PHL
38h 44m2 stops
Wed, 26 Feb
18:45 - 16:00LHR-PHL
26h 15m1 stop
£408Aer Lingus
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Sun, 2 Mar
07:50 - 19:07LHR-PHL
16h 17m2 stops
£411Aer Lingus
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Tue, 21 Jan
10:15 - 13:30LHR-PHL
8h 15mdirect
£454Iberia
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Mon, 27 Jan
09:50 - 16:35LHR-PHL
11h 45m1 stop
£457British Airways
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Mon, 17 Feb
10:15 - 13:30LHR-PHL
8h 15mdirect
£465Finnair
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Mon, 3 Feb
10:15 - 13:20LHR-PHL
8h 05mdirect
£466Finnair
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Mon, 17 Feb
09:50 - 16:35LHR-PHL
11h 45m1 stop
£469British Airways
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Wed, 26 Feb
12:30 - 15:25LHR-PHL
7h 55mdirect
£504Iberia
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Tue, 1 Apr
07:50 - 16:40LHR-PHL
13h 50m1 stop
21:21 - 09:20PHL-LHR
6h 59mdirect
£442American Airlines
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Wed, 22 Jan - Wed, 29 Jan
07:50 - 16:40LHR-PHL
13h 50m1 stop
21:31 - 14:25PHL-LHR
11h 54m1 stop
£444American Airlines
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Wed, 22 Jan - Wed, 29 Jan
10:15 - 13:30LHR-PHL
8h 15mdirect
18:40 - 06:35PHL-LHR
6h 55mdirect
£466British Airways
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Wed, 22 Jan - Wed, 29 Jan
15:00 - 14:50LHR-PHL
28h 50m1 stop
15:30 - 11:50PHL-LHR
15h 20m2 stops
£467Air Canada
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Wed, 22 Jan - Wed, 29 Jan
10:15 - 13:30LHR-PHL
8h 15mdirect
13:40 - 08:40PHL-LHR
14h 00m1 stop
£578Finnair
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Sat, 18 Jan - Sat, 25 Jan
12:35 - 00:47LHR-PHL
17h 12m1 stop
13:40 - 08:40PHL-LHR
14h 00m1 stop
£583Finnair
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Sat, 18 Jan - Sat, 25 Jan
07:50 - 19:07LHR-PHL
16h 17m2 stops
11:10 - 08:05PHL-LHR
15h 55m2 stops
£592Aer Lingus
Find Deal
Wed, 22 Jan - Tue, 28 Jan
17:45 - 19:07LHR-PHL
30h 22m2 stops
11:10 - 09:05PHL-LHR
16h 55m2 stops
£628Aer Lingus
Find Deal
Mon, 20 Jan - Sun, 2 Feb
13:10 - 16:20LHR-PHL
8h 10mdirect
18:40 - 06:35PHL-LHR
6h 55mdirect
£825Iberia
Find Deal
Sat, 18 Jan - Mon, 20 Jan
10:15 - 13:30LHR-PHL
8h 15mdirect
18:40 - 06:35PHL-LHR
6h 55mdirect
£2,325British Airways
Find Deal
Wed, 22 Jan - Tue, 28 Jan
10:15 - 13:30LHR-PHL
8h 15mdirect
21:21 - 09:20PHL-LHR
6h 59mdirect
Wed, 5 Feb - Wed, 12 Feb
10:15 - 13:20LHR-PHL
8h 05mdirect
22:15 - 09:20PHL-LHR
7h 05mdirect
Wed, 19 Feb - Mon, 10 Mar
13:10 - 16:20LHR-PHL
8h 10mdirect
18:40 - 06:35PHL-LHR
6h 55mdirect
£455British Airways
Find Deal
Tue, 18 Feb - Tue, 25 Feb
13:10 - 16:20LHR-PHL
8h 10mdirect
21:21 - 09:20PHL-LHR
6h 59mdirect
£457British Airways
Find Deal
Wed, 5 Feb - Wed, 12 Feb
13:10 - 16:20LHR-PHL
8h 10mdirect
21:21 - 09:20PHL-LHR
6h 59mdirect
£461Iberia
Find Deal
Mon, 27 Jan - Mon, 3 Feb
13:10 - 16:20LHR-PHL
8h 10mdirect
21:21 - 09:20PHL-LHR
6h 59mdirect
£470Finnair
Find Deal
Mon, 27 Jan - Mon, 3 Feb
13:10 - 16:20LHR-PHL
8h 10mdirect
18:40 - 06:35PHL-LHR
6h 55mdirect
£472Finnair
Find Deal
Mon, 27 Jan - Mon, 3 Feb
10:15 - 13:20LHR-PHL
8h 05mdirect
19:40 - 06:35PHL-LHR
6h 55mdirect
£479American Airlines
Find Deal
Tue, 4 Mar - Tue, 11 Mar
13:10 - 16:20LHR-PHL
8h 10mdirect
18:40 - 06:35PHL-LHR
6h 55mdirect
£505Iberia
Find Deal
Wed, 29 Jan - Wed, 12 Feb
13:10 - 16:20LHR-PHL
8h 10mdirect
18:40 - 06:35PHL-LHR
6h 55mdirect
£509American Airlines
Find Deal
Fri, 14 Feb - Mon, 24 Feb

British Airways flights from London to Philadelphia

Our best British Airways deals on London to Philadelphia flight tickets
British Airways
12 Feb
LHR07:50London Heathrow
13h 50m
1 stop
PHL16:40Philadelphia
17 Feb
PHL16:05Philadelphia
10h 45m
1 stop
LHR07:50London Heathrow
British Airways
19 Feb
LHR09:50London Heathrow
11h 45m
1 stop
PHL16:35Philadelphia
10 Mar
PHL19:40Philadelphia
6h 55m
LHR06:35London Heathrow
British Airways
12 Feb
LHR09:50London Heathrow
11h 50m
1 stop
PHL16:40Philadelphia
19 Feb
PHL18:40Philadelphia
6h 55m
LHR06:35London Heathrow

Iberia flights from London to Philadelphia

Our best Iberia deals on London to Philadelphia flight tickets
Iberia
27 Jan
LHR13:10London Heathrow
8h 10m
PHL16:20Philadelphia
3 Feb
PHL21:21Philadelphia
6h 59m
LHR09:20London Heathrow
Iberia
29 Jan
LHR13:10London Heathrow
8h 10m
PHL16:20Philadelphia
12 Feb
PHL18:40Philadelphia
6h 55m
LHR06:35London Heathrow
Iberia
27 Jan
LHR13:10London Heathrow
8h 10m
PHL16:20Philadelphia
16 Feb
PHL18:40Philadelphia
6h 55m
LHR06:35London Heathrow

See travel insights to Philadelphia from

How to get the cheapest flight ticket from London to Philadelphia

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

What is the cheapest month to fly to Philadelphia?

If you aren’t able to travel during the month of February, then book flights to Philadelphia from London during March instead. Flights to Philadelphia in March, while not as cheap as those in February, still average around £565.

What is the cheapest day to depart on your flight to Philadelphia?

Our data shows that Tuesday is the least expensive day to fly to Philadelphia. Tickets to fly out on this day can be as low as £589. On the other hand, Sunday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £662.

What is the cheapest time of day to depart on your flight to Philadelphia?

The cheapest time of day to fly to Philadelphia is in the afternoon when flights can be purchased for as low as £550. In the morning is when there is more demand to fly to Philadelphia, so prices are often more expensive at around £625 per ticket.

What is the cheapest London to Philadelphia flight route?

Fly from London Heathrow to Philadelphia for the best London - Philadelphia flight prices

How far in advance should I book a flight to Philadelphia?

You are more likely to see cheaper flights to Philadelphia from London when booking 7 weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around £616 when searching 7 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from London for as low as £583 on momondo.

What cabin class options are available on London to Philadelphia flights?

There are 4 cabin classes available to choose from on London to Philadelphia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have London to Philadelphia flight prices changed over time?

As of January 2025, prices for London to Philadelphia flights are approximately 6% more expensive when compared to flights at the same time last year.

When to book flights from London to Philadelphia

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

Cheap London to Philadelphia (LON to PHL) flight deals and tips

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

Best price found

£238

Fastest flight time

7h 45m

Direct flights

Every day

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from London in the past 72 hours is £238. The best return flight deal from London to Philadelphia found on momondo in the last 72 hours is £384.
The fastest flight from London to Philadelphia takes 7h 45m
Direct flights go from London to Philadelphia every day.
There is 1 airport near Philadelphia: Philadelphia (PHL)

  • How far is London to Philadelphia by plane?

    London and Philadelphia are 3538.9 mi apart from one another. 7h 45m is a normal flight duration for this route.

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

    Prices for flights from London to Philadelphia Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Philadelphia Airport.

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

    The travel and health documents you'll need for your trip to Philadelphia Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Philadelphia Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from London to Philadelphia?

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


Best airlines flying from London to Philadelphia

Compare and see reviews for airlines that fly from London to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £368Free CancellationRating
7.1
501 reviews
Search Icelandair flights
JetBluePriceFrom £389Free CancellationRating
7.4
3,199 reviews
Search JetBlue flights
Air CanadaPriceFrom £420Free CancellationRating
7.0
8,593 reviews
Search Air Canada flights
British AirwaysPriceFrom £477Free CancellationRating
6.6
6,824 reviews
Search British Airways flights
LufthansaPriceFrom £478Free CancellationRating
6.7
7,094 reviews
Search Lufthansa flights
United AirlinesPriceFrom £483Free CancellationRating
7.4
8,969 reviews
Search United Airlines flights
American AirlinesPriceFrom £489Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
FinnairPriceFrom £490Free CancellationRating
7.6
1,285 reviews
Search Finnair flights
Virgin AtlanticPriceFrom £492Free CancellationRating
7.5
664 reviews
Search Virgin Atlantic flights
Aer LingusPriceFrom £492Free CancellationRating
7.1
1,077 reviews
Search Aer Lingus flights
  • Finnair Flights From London to Philadelphia

    Finnair flies from London to Philadelphia around 14 times per week, with 1,285 momondo users rating the airline 7.6/10. The cheapest Finnair deal from London to Philadelphia in the last 72 hours was £599 (round-trip), much lower than the average airfare cost of £748 for Finnair flights on this route.

  • American Airlines Flights From London to Philadelphia

    Another popular option for London to Philadelphia flights is American Airlines (7.2/10, 10,000 ratings). American Airlines flies from London to Philadelphia around 14 times per week, with deals starting from £597 round-trip and rising to an average price of around £809.


Travelling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Dover
Newark
Vineland
King of Prussia
Rehoboth Beach
Cape May
Cherry Hill

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Philadelphia . Millions of users trust and use momondo every year so you are in good hands.

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

Flights from London to Philadelphia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Philadelphia from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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


An easier way to manage your Philadelphia trip

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

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