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Cheap flights from London Heathrow Airport to Philadelphia from $317

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 2/24. 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 round-trip flights

These are some of the best round-trip 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 layovers.

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 from London Heathrow Airport to Philadelphia

The cheapest plane tickets from London Heathrow Airport to Philadelphia found on KAYAK recently.
6:30 am - 10:36 pmLHR-PHL
21h 06m2 stops
2:58 pm - 8:25 amPHL-LHR
12h 27m2 stops
$522United Airlines
Find Deal
Mon, Feb 17 - Wed, Feb 26
6:30 am - 10:36 pmLHR-PHL
21h 06m2 stops
1:00 pm - 7:55 amPHL-LHR
13h 55m1 stop
$523United Airlines
Find Deal
Tue, Feb 11 - Tue, Feb 18
9:50 am - 4:40 pmLHR-PHL
11h 50m1 stop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$525British Airways
Find Deal
Mon, Feb 10 - Wed, Feb 19
9:50 am - 4:35 pmLHR-PHL
11h 45m1 stop
9:16 pm - 9:20 amPHL-LHR
7h 04mnonstop
$526British Airways
Find Deal
Mon, Feb 24 - Tue, Mar 4
7:50 am - 4:40 pmLHR-PHL
13h 50m1 stop
10:15 pm - 9:20 amPHL-LHR
7h 05mnonstop
$541American Airlines
Find Deal
Mon, Feb 3 - Mon, Mar 10
7:50 am - 4:40 pmLHR-PHL
13h 50m1 stop
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
$542American Airlines
Find Deal
Mon, Feb 3 - Mon, Feb 10
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
6:45 pm - 12:00 pmPHL-LHR
12h 15m1 stop
$559Finnair
Find Deal
Mon, Feb 17 - Wed, Feb 26
1:10 pm - 4:20 pmLHR-PHL
8h 10mnonstop
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
$564Finnair
Find Deal
Mon, Feb 3 - Mon, Feb 10
7:20 am - 4:15 pmLHR-PHL
13h 55m1 stop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$598Iberia
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Tue, Feb 25 - Wed, Mar 5
1:10 pm - 4:20 pmLHR-PHL
8h 10mnonstop
9:16 pm - 9:20 amPHL-LHR
7h 04mnonstop
$600Iberia
Find Deal
Wed, Feb 5 - Fri, Feb 14
3:15 pm - 9:54 amLHR-PHL
47h 39m2 stops
Mon, Feb 24
3:15 pm - 9:25 pmLHR-PHL
59h 10m2 stops
Mon, Feb 24
1:25 pm - 7:00 pmLHR-PHL
10h 35m1 stop
$458Aer Lingus
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Tue, Apr 22
9:50 am - 5:00 pmLHR-PHL
11h 10m1 stop
$460Aer Lingus
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Tue, Mar 18
10:15 am - 1:30 pmLHR-PHL
8h 15mnonstop
$567Finnair
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Mon, Feb 3
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
$571British Airways
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Mon, Feb 17
8:50 am - 4:35 pmLHR-PHL
12h 45m1 stop
$577British Airways
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Mon, Feb 17
10:15 am - 1:30 pmLHR-PHL
8h 15mnonstop
$588Iberia
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Sun, Feb 2
10:15 am - 2:05 pmLHR-PHL
7h 50mnonstop
$590Iberia
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Tue, Mar 18
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
$592Finnair
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Sat, Feb 22
8:25 am - 4:40 pmLHR-PHL
13h 15m1 stop
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
$548American Airlines
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Mon, Jan 27 - Mon, Feb 3
8:25 am - 4:40 pmLHR-PHL
13h 15m1 stop
9:31 pm - 1:25 pmPHL-LHR
10h 54m1 stop
$551American Airlines
Find Deal
Mon, Jan 27 - Mon, Feb 3
11:10 am - 10:36 pmLHR-PHL
16h 26m1 stop
2:46 pm - 10:15 amPHL-LHR
14h 29m2 stops
$569United Airlines
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Mon, Jan 27 - Mon, Feb 3
10:15 am - 1:30 pmLHR-PHL
8h 15mnonstop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$573British Airways
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Mon, Jan 27 - Mon, Feb 3
8:55 am - 10:36 pmLHR-PHL
18h 41m2 stops
9:00 am - 7:10 amPHL-LHR
17h 10m2 stops
$576Air Canada
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Mon, Jan 27 - Mon, Feb 3
10:15 am - 1:30 pmLHR-PHL
8h 15mnonstop
1:40 pm - 8:40 amPHL-LHR
14h 00m1 stop
$706Finnair
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Fri, Jan 24 - Sat, Feb 1
10:05 am - 7:58 pmLHR-PHL
14h 53m1 stop
1:40 pm - 8:40 amPHL-LHR
14h 00m1 stop
$711Finnair
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Fri, Jan 24 - Sat, Feb 1
7:50 am - 4:40 pmLHR-PHL
13h 50m1 stop
11:10 am - 9:15 amPHL-LHR
17h 05m2 stops
$954Aer Lingus
Find Deal
Sat, Jan 25 - Mon, Jan 27
7:50 am - 4:40 pmLHR-PHL
13h 50m1 stop
11:10 am - 9:05 amPHL-LHR
16h 55m2 stops
$1,024Aer Lingus
Find Deal
Sat, Jan 25 - Sun, Feb 2
7:55 pm - 4:40 pmLHR-PHL
25h 45m1 stop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$9,357British Airways
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Mon, Jan 27 - Mon, Feb 3
1:10 pm - 4:20 pmLHR-PHL
8h 10mnonstop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$549British Airways
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Mon, Feb 3 - Mon, Feb 10
1:10 pm - 4:20 pmLHR-PHL
8h 10mnonstop
9:16 pm - 9:20 amPHL-LHR
7h 04mnonstop
$554British Airways
Find Deal
Mon, Feb 10 - Wed, Feb 19
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
10:15 pm - 9:20 amPHL-LHR
7h 05mnonstop
Wed, Mar 5 - Tue, Mar 18
1:10 pm - 4:20 pmLHR-PHL
8h 10mnonstop
9:16 pm - 9:20 amPHL-LHR
7h 04mnonstop
$559Finnair
Find Deal
Mon, Feb 17 - Wed, Feb 26
1:10 pm - 4:20 pmLHR-PHL
8h 10mnonstop
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
$564Finnair
Find Deal
Mon, Feb 3 - Mon, Feb 10
10:15 am - 2:10 pmLHR-PHL
7h 55mnonstop
10:15 pm - 10:20 amPHL-LHR
7h 05mnonstop
$568Iberia
Find Deal
Wed, Mar 26 - Mon, Mar 31
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
9:16 pm - 9:20 amPHL-LHR
7h 04mnonstop
$574American Airlines
Find Deal
Wed, Feb 19 - Wed, Feb 26
10:15 am - 1:30 pmLHR-PHL
8h 15mnonstop
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
$576American Airlines
Find Deal
Mon, Feb 3 - Mon, Feb 10
10:05 am - 12:50 pmLHR-PHL
7h 45mnonstop
7:35 pm - 7:55 amPHL-LHR
7h 20mnonstop
Tue, Apr 15 - Wed, Apr 30
1:10 pm - 4:20 pmLHR-PHL
8h 10mnonstop
9:16 pm - 9:20 amPHL-LHR
7h 04mnonstop
$600Iberia
Find Deal
Wed, Feb 5 - Fri, Feb 14

United Airlines flights from London Heathrow Airport to Philadelphia

Our best United Airlines deals on London Heathrow Airport to Philadelphia flight tickets
United Airlines
Feb 17
LHR6:30 amLondon Heathrow
21h 06m
2 stops
PHL10:36 pmPhiladelphia
Feb 26
PHL2:58 pmPhiladelphia
12h 27m
2 stops
LHR8:25 amLondon Heathrow
United Airlines
Feb 11
LHR6:30 amLondon Heathrow
21h 06m
2 stops
PHL10:36 pmPhiladelphia
Feb 18
PHL1:00 pmPhiladelphia
13h 55m
1 stop
LHR7:55 amLondon Heathrow
United Airlines
Mar 3
LHR6:30 amLondon Heathrow
21h 06m
2 stops
PHL10:36 pmPhiladelphia
Mar 10
PHL9:00 amPhiladelphia
22h 50m
1 stop
LHR11:50 amLondon Heathrow

American Airlines flights from London Heathrow Airport to Philadelphia

Our best American Airlines deals on London Heathrow Airport to Philadelphia flight tickets
American Airlines
Feb 3
LHR7:50 amLondon Heathrow
13h 50m
1 stop
PHL4:40 pmPhiladelphia
Mar 10
PHL10:15 pmPhiladelphia
7h 05m
LHR9:20 amLondon Heathrow
American Airlines
Feb 3
LHR7:50 amLondon Heathrow
13h 50m
1 stop
PHL4:40 pmPhiladelphia
Feb 10
PHL9:21 pmPhiladelphia
6h 59m
LHR9:20 amLondon Heathrow
American Airlines
Feb 4
LHR8:50 amLondon Heathrow
12h 50m
1 stop
PHL4:40 pmPhiladelphia
Feb 11
PHL9:31 pmPhiladelphia
10h 54m
1 stop
LHR1:25 pmLondon 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 typical price of a round-trip flight between London Heathrow Airport and Philadelphia?

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from London Heathrow Airport is in March. Flight prices, which tend to average around $655, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Philadelphia, with average flight prices from London Heathrow Airport averaging around $658.

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

The cheapest day to depart from London Heathrow Airport to Philadelphia is on a Tuesday. Travelers who choose to depart for Philadelphia on a Tuesday will often find tickets for as low as $704. On the other hand, Friday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $891.

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

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from London Heathrow Airport to Philadelphia in the evening for as low as $704. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the morning when prices are around $839.

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?

You are more likely to see cheaper flights to Philadelphia from London Heathrow Airport when booking 7 weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $751 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 Heathrow Airport for as low as $712 on momondo.

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

There are 3 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.

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

As of January 2025, prices for London Heathrow Airport to Philadelphia flights are approximately 6% 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 round-trip 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

$317

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 $317. The best round-trip flight deal from London Heathrow Airport to Philadelphia found on momondo in the last 72 hours is $522.
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?

    The straight-line distance from London Heathrow to Philadelphia is 3526.0 mi. By plane, this route typically takes 7h 45m.

  • 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 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 London Heathrow Airport to Philadelphia Airport.

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

    The required travel and health documents for your Philadelphia 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 Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • 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
British AirwaysPriceFrom $595Free CancellationRating
6.6
6,831 reviews
Search British Airways flights
American AirlinesPriceFrom $596Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Aer LingusPriceFrom $605Free CancellationRating
7.1
1,082 reviews
Search Aer Lingus flights
FinnairPriceFrom $643Free CancellationRating
7.6
1,286 reviews
Search Finnair flights
IberiaPriceFrom $644Free CancellationRating
7.0
2,646 reviews
Search Iberia flights
  • Finnair Flights From London Heathrow Airport to Philadelphia

    The lowest priced Finnair flight from London Heathrow Airport to Philadelphia from the last 72 hours was $643. Generally, Finnair has 14 flights on this route every week with an average price of $767. Finnair is rated 7.6/10 by our users.

  • American Airlines Flights From London Heathrow Airport to Philadelphia

    American Airlines (7.2/10 from 10,000 reviews) operates around 14 flights from London Heathrow Airport to Philadelphia in any given week. The average American Airlines airfare for this route is around $744, with deals from around $596 rare but found on momondo. Referenced prices are for round-trip London Heathrow Airport to Philadelphia flight searches in the last 72 hours.


Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Rehoboth Beach
Cape May
Ocean City
Wildwood Crest
Reading
King of Prussia
Newark
Dover
Dewey Beach
Cherry Hill
North Wildwood
Lewes
Exton
New Castle
Vineland
Pottstown
West Chester
Essington
Havre de Grace

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?

All flight searches from London to Philadelphia on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Philadelphia.

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

Yes. momondo can track prices for London to Philadelphia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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