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Cheap flights from London Heathrow Airport to Philadelphia from £237

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 Heathrow Airport to Philadelphia departing on 22/1. 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 Heathrow Airport to Philadelphia

Cheap return flights

These are some of the best return flight deals from London Heathrow Airport 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 Heathrow Airport to Philadelphia.

Cheap last-minute flights

Planning a quick getaway from London Heathrow Airport 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 Heathrow Airport to Philadelphia

Find recent round-trip train or bus tickets from London Heathrow Airport to Philadelphia.

All round-trip flight deals to Philadelphia

The cheapest plane tickets to Philadelphia found on KAYAK recently.
08:50 - 16:40LHR-PHL
12h 50m1 stop
18:00 - 07:50PHL-LHR
8h 50m1 stop
£419British Airways
Find Deal
Tue, 21 Jan - Tue, 28 Jan
06:30 - 22:36LHR-PHL
21h 06m2 stops
14:46 - 10:50PHL-LHR
15h 04m1 stop
£421United Airlines
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Tue, 4 Feb - Tue, 11 Feb
09:50 - 16:40LHR-PHL
11h 50m1 stop
21:21 - 09:20PHL-LHR
6h 59mdirect
£440American Airlines
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Tue, 21 Jan - Tue, 28 Jan
08:50 - 16:40LHR-PHL
12h 50m1 stop
14:00 - 07:50PHL-LHR
12h 50m1 stop
£446American Airlines
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Wed, 5 Feb - Wed, 12 Feb
10:15 - 13:30LHR-PHL
8h 15mdirect
22:40 - 10:50PHL-LHR
7h 10mdirect
£457Finnair
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Wed, 29 Jan - Wed, 14 May
08:30 - 17:05LHR-PHL
12h 35m1 stop
22:10 - 10:20PHL-LHR
7h 10mdirect
£459Finnair
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Sat, 29 Mar - Mon, 7 Apr
10:05 - 12:55LHR-PHL
7h 50mdirect
18:30 - 06:40PHL-LHR
7h 10mdirect
£508Iberia
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Mon, 9 Jun - Mon, 23 Jun
19:25 - 22:36LHR-PHL
32h 11m2 stops
15:30 - 07:10PHL-LHR
10h 40m1 stop
£516Air Canada
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Sat, 25 Jan - Sun, 2 Feb
19:25 - 22:36LHR-PHL
32h 11m2 stops
15:30 - 11:50PHL-LHR
15h 20m2 stops
£521Air Canada
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Sat, 25 Jan - Sun, 2 Feb
13:30 - 16:25LHR-PHL
7h 55mdirect
18:30 - 06:40PHL-LHR
7h 10mdirect
£538Iberia
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Sat, 7 Jun - Thu, 19 Jun
15:15 - 10:24LHR-PHL
48h 09m2 stops
Wed, 22 Jan
15:15 - 10:24LHR-PHL
48h 09m2 stops
Wed, 22 Jan
20:45 - 17:00LHR-PHL
24h 15m1 stop
£398Aer Lingus
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Sun, 23 Mar
08:50 - 21:52LHR-PHL
17h 02m2 stops
£414Aer Lingus
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Tue, 18 Mar
07:20 - 16:20LHR-PHL
14h 00m1 stop
£437Iberia
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Tue, 21 Jan
08:15 - 16:40LHR-PHL
13h 25m1 stop
£458British Airways
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Thu, 23 Jan
13:10 - 16:20LHR-PHL
8h 10mdirect
£474Finnair
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Tue, 31 Dec
10:15 - 13:20LHR-PHL
8h 05mdirect
£479Finnair
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Tue, 18 Feb
19:40 - 13:50LHR-PHL
23h 10m1 stop
£486British Airways
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Sun, 23 Feb
13:30 - 16:25LHR-PHL
7h 55mdirect
£504Iberia
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Wed, 18 Jun
13:10 - 16:20LHR-PHL
8h 10mdirect
18:30 - 07:20PHL-LHR
31h 50m1 stop
£587Iberia
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Sat, 28 Dec - Sat, 17 May
08:25 - 17:33LHR-PHL
14h 08m1 stop
10:10 - 06:30PHL-LHR
15h 20m1 stop
£670JetBlue
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Thu, 26 Dec - Wed, 14 May
11:45 - 19:55LHR-PHL
13h 10m1 stop
18:40 - 12:20PHL-LHR
12h 40m1 stop
£736Finnair
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Thu, 26 Dec - Mon, 30 Dec
11:00 - 19:56LHR-PHL
13h 56m1 stop
15:39 - 10:15PHL-LHR
13h 36m1 stop
£752Finnair
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Tue, 24 Dec - Tue, 31 Dec
10:15 - 13:20LHR-PHL
8h 05mdirect
13:45 - 06:15PHL-LHR
11h 30m1 stop
£857American Airlines
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Thu, 26 Dec - Wed, 14 May
07:00 - 15:35LHR-PHL
13h 35m1 stop
13:40 - 06:15PHL-LHR
11h 35m1 stop
£902American Airlines
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Tue, 24 Dec - Sun, 29 Dec
13:10 - 16:20LHR-PHL
8h 10mdirect
18:41 - 12:00PHL-LHR
12h 19m1 stop
£992British Airways
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Thu, 26 Dec - Mon, 30 Dec
08:50 - 17:33LHR-PHL
37h 43m2 stops
17:30 - 10:20PHL-LHR
11h 50m1 stop
£1,025Aer Lingus
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Thu, 26 Dec - Mon, 30 Dec
13:10 - 16:20LHR-PHL
8h 10mdirect
15:17 - 07:50PHL-LHR
11h 33m1 stop
£1,242British Airways
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Fri, 27 Dec - Fri, 3 Jan
08:30 - 16:00LHR-PHL
12h 30m1 stop
21:10 - 15:35PHL-LHR
13h 25m1 stop
£3,661Aer Lingus
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Sat, 28 Dec - Sat, 4 Jan
10:15 - 13:30LHR-PHL
8h 15mdirect
21:21 - 09:20PHL-LHR
6h 59mdirect
£451British Airways
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Wed, 22 Jan - Wed, 29 Jan
13:10 - 16:20LHR-PHL
8h 10mdirect
21:21 - 09:20PHL-LHR
6h 59mdirect
£455Finnair
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Tue, 21 Jan - Tue, 28 Jan
10:15 - 13:30LHR-PHL
8h 15mdirect
21:21 - 09:20PHL-LHR
6h 59mdirect
Mon, 3 Feb - Mon, 10 Feb
10:15 - 13:20LHR-PHL
8h 05mdirect
18:40 - 06:35PHL-LHR
6h 55mdirect
£457Iberia
Find Deal
Mon, 24 Feb - Mon, 3 Mar
10:15 - 13:30LHR-PHL
8h 15mdirect
22:40 - 10:50PHL-LHR
7h 10mdirect
£457Finnair
Find Deal
Wed, 29 Jan - Wed, 14 May
10:15 - 13:30LHR-PHL
8h 15mdirect
21:21 - 09:20PHL-LHR
6h 59mdirect
£465American Airlines
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Tue, 21 Jan - Tue, 28 Jan
10:15 - 13:30LHR-PHL
8h 15mdirect
18:40 - 06:35PHL-LHR
6h 55mdirect
£468Finnair
Find Deal
Mon, 13 Jan - Mon, 20 Jan
13:10 - 16:20LHR-PHL
8h 10mdirect
21:21 - 09:20PHL-LHR
6h 59mdirect
£476American Airlines
Find Deal
Mon, 3 Feb - Mon, 10 Feb
10:15 - 13:30LHR-PHL
8h 15mdirect
21:21 - 09:20PHL-LHR
6h 59mdirect
£477British Airways
Find Deal
Thu, 6 Feb - Tue, 11 Feb
10:05 - 12:55LHR-PHL
7h 50mdirect
18:30 - 06:40PHL-LHR
7h 10mdirect
£508Iberia
Find Deal
Mon, 9 Jun - Mon, 23 Jun

British Airways flights from London Heathrow Airport to Philadelphia

Our best British Airways deals on London Heathrow Airport to Philadelphia flight tickets
British Airways
21 Jan
LHR08:50London Heathrow
12h 50m
1 stop
PHL16:40Philadelphia
28 Jan
PHL18:00Philadelphia
8h 50m
1 stop
LHR07:50London Heathrow
British Airways
21 Jan
LHR08:50London Heathrow
12h 50m
1 stop
PHL16:40Philadelphia
28 Jan
PHL21:31Philadelphia
14h 19m
1 stop
LHR16:50London Heathrow
British Airways
21 Jan
LHR06:30London Heathrow
15h 10m
1 stop
PHL16:40Philadelphia
28 Jan
PHL18:40Philadelphia
6h 55m
LHR06:35London Heathrow

Lufthansa flights from London Heathrow Airport to Philadelphia

Our best Lufthansa deals on London Heathrow Airport to Philadelphia flight tickets
Lufthansa
4 Feb
LHR08:30London Heathrow
12h 30m
1 stop
PHL16:00Philadelphia
11 Feb
PHL10:10Philadelphia
16h 45m
1 stop
LHR07:55London Heathrow
Lufthansa
6 Jan
LHR15:00London Heathrow
28h 50m
1 stop
PHL14:50Philadelphia
23 Jan
PHL14:46Philadelphia
10h 54m
1 stop
LHR06:40London Heathrow
Lufthansa
7 Jan
LHR15:00London Heathrow
28h 50m
1 stop
PHL14:50Philadelphia
12 Jan
PHL17:10Philadelphia
32h 20m
2 stops
LHR06:30London Heathrow

See travel insights to Philadelphia from

How to get the cheapest flight ticket from London Heathrow Airport 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 Heathrow Airport during January instead. Flights to Philadelphia in January, while not as cheap as those in February, still average around £551.

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 £573. On the other hand, Sunday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £643.

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 £535. In the morning is when there is more demand to fly to Philadelphia, so prices are often more expensive at around £607 per ticket.

What is the cheapest London Heathrow to Philadelphia flight route?

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

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

Most flyers found that booking tickets 42 days in advance of their planned departure date is the best time to get cheap flights to Philadelphia. During this timeframe, flight prices are around £598. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from London Heathrow Airport for as low as £413 on momondo.

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

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

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

You could potentially save up to 47% on your flight if you consider stops on a London Heathrow Airport to Philadelphia flight.

How have London Heathrow Airport to Philadelphia flight prices changed over time?

As of December 2024, prices for London Heathrow Airport to Philadelphia flights are approximately 14% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Philadelphia

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

Cheap London Heathrow Airport to Philadelphia (LHR to PHL) flight deals and tips

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

Best price found

£237

Fastest flight time

7h 45m

Direct flights

Every day

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from London Heathrow Airport in the past 72 hours is £237. The best return flight deal from London Heathrow Airport to Philadelphia found on momondo in the last 72 hours is £419.
The fastest flight from London Heathrow Airport to Philadelphia takes 7h 45m
Direct flights go from London Heathrow Airport to Philadelphia every day.
There is 1 airport near Philadelphia: Philadelphia (PHL)

  • How far is London Heathrow to Philadelphia by plane?

    London Heathrow and Philadelphia are 3526.0 mi apart from one another. Flights usually cover this in 7h 45m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from London Heathrow Airport to Philadelphia Airport are updated daily.

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

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

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

    The travel and health documents required for your trip to Philadelphia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Philadelphia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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


Best airlines flying from London Heathrow Airport to Philadelphia

Compare and see reviews for airlines that fly from London Heathrow Airport to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £358Free CancellationRating
7.1
506 reviews
Search Icelandair flights
JetBluePriceFrom £379Free CancellationRating
7.4
3,263 reviews
Search JetBlue flights
Air CanadaPriceFrom £387Free CancellationRating
7.0
8,421 reviews
Search Air Canada flights
United AirlinesPriceFrom £446Free CancellationRating
7.4
9,022 reviews
Search United Airlines flights
British AirwaysPriceFrom £459Free CancellationRating
6.6
6,810 reviews
Search British Airways flights
LufthansaPriceFrom £465Free CancellationRating
6.8
7,083 reviews
Search Lufthansa flights
FinnairPriceFrom £466Free CancellationRating
7.7
1,285 reviews
Search Finnair flights
American AirlinesPriceFrom £475Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Virgin AtlanticPriceFrom £478Free CancellationRating
7.5
667 reviews
Search Virgin Atlantic flights
Aer LingusPriceFrom £479Free CancellationRating
7.1
1,076 reviews
Search Aer Lingus flights
  • Finnair Flights From London Heathrow Airport to Philadelphia

    Finnair flies from London Heathrow Airport to Philadelphia around 14 times per week, with 1,285 momondo users rating the airline 7.7/10. The cheapest Finnair deal from London Heathrow Airport to Philadelphia in the last 72 hours was £586 (round-trip), much lower than the average airfare cost of £747 for Finnair flights on this route.

  • American Airlines Flights From London Heathrow Airport to Philadelphia

    £597 is the best American Airlines flight deal from London Heathrow Airport to Philadelphia found on momondo over the last 72 hours. The average American Airlines ticket price found was closer to £804, however, with flight time and availability significantly affecting the price. American Airlines (7.2/10 from 10,000 user reviews) flies into Philadelphia from London Heathrow Airport 14 times in an average week so prices can vary.


Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Philadelphia for you.

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

momondo does allow users to show only those flights to Philadelphia from London which offer a flexible booking policy as well as other useful filters and features.

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?

Price alerts on flights to Philadelphia from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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