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Cheap flights from London Heathrow Airport to Philadelphia from $369

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 5/8. 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
0 bags

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Find the cheapest flights from London Heathrow Airport to Philadelphia

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from London Heathrow Airport to Philadelphia.
Finnair Logo
6:10 am - 3:50 pmLHR-PHL
14h 40m1 stop
Finnair Logo
2:00 pm - 6:15 amPHL-LHR
11h 15m1 stop
$595Finnair
Find Deal
Di, Mai 13 - Di, Mai 20
 Logo
8:30 am - 4:00 pmLHR-PHL
12h 30m1 stop
 Logo
3:25 pm - 9:35 amPHL-LHR
13h 10m1 stop
Do, Sep 25 - So, Sep 28
United Airlines Logo
7:25 am - 3:48 pmLHR-PHL
37h 23m2 stops
United Airlines Logo
6:15 am - 6:55 amPHL-LHR
19h 40m1 stop
$614United Airlines
Find Deal
Mo, Mai 5 - Mo, Mai 12
United Airlines Logo
7:25 am - 10:28 pmLHR-PHL
20h 03m2 stops
United Airlines Logo
6:15 am - 6:30 amPHL-LHR
19h 15m2 stops
$616United Airlines
Find Deal
Di, Mai 13 - Di, Mai 20
British Airways Logo
1:25 pm - 7:00 pmLHR-PHL
10h 35m1 stop
British Airways Logo
10:10 pm - 10:20 amPHL-LHR
7h 10mnonstop
$636British Airways
Find Deal
Mi, Mai 7 - Mi, Mai 14
British Airways Logo
12:30 pm - 3:15 pmLHR-PHL
7h 45mnonstop
British Airways Logo
7:55 pm - 8:05 amPHL-LHR
7h 10mnonstop
$643British Airways
Find Deal
Mo, Mai 5 - Mo, Mai 12
American Airlines Logo
12:30 pm - 3:15 pmLHR-PHL
7h 45mnonstop
American Airlines Logo
2:00 pm - 6:15 amPHL-LHR
11h 15m1 stop
$694American Airlines
Find Deal
Do, Mai 22 - Do, Mai 29
American Airlines Logo
1:30 pm - 4:25 pmLHR-PHL
7h 55mnonstop
American Airlines Logo
1:55 pm - 6:15 amPHL-LHR
11h 20m1 stop
$705American Airlines
Find Deal
Do, Mai 29 - Mo, Jun 9
Iberia Logo
6:30 am - 4:25 pmLHR-PHL
14h 55m1 stop
Iberia Logo
10:15 pm - 10:20 amPHL-LHR
7h 05mnonstop
$719Iberia
Find Deal
Mi, Mai 28 - Mo, Jun 9
Iberia Logo
12:30 pm - 3:25 pmLHR-PHL
7h 55mnonstop
Iberia Logo
6:30 pm - 6:40 amPHL-LHR
7h 10mnonstop
$722Iberia
Find Deal
So, Jun 15 - Do, Sep 4

JetBlue flights from London Heathrow Airport to Philadelphia

Our best JetBlue deals on London Heathrow Airport to Philadelphia flight tickets
JetBlue
May 27
LHR8:25 amLondon Heathrow
13h 13m
1 stop
PHL4:38 pmPhiladelphia
Jun 12
PHL10:15 amPhiladelphia
15h 15m
1 stop
LHR6:30 amLondon Heathrow
JetBlue
May 28
LHR8:25 amLondon Heathrow
13h 13m
1 stop
PHL4:38 pmPhiladelphia
Jun 12
PHL10:15 amPhiladelphia
15h 15m
1 stop
LHR6:30 amLondon Heathrow
JetBlue
Apr 30
LHR8:25 amLondon Heathrow
13h 16m
1 stop
PHL4:41 pmPhiladelphia
May 7
PHL10:16 amPhiladelphia
15h 14m
1 stop
LHR6:30 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
May 5
LHR12:30 pmLondon Heathrow
7h 45m
PHL3:15 pmPhiladelphia
May 12
PHL5:10 pmPhiladelphia
10h 55m
1 stop
LHR9:05 amLondon Heathrow
American Airlines
May 22
LHR12:30 pmLondon Heathrow
7h 45m
PHL3:15 pmPhiladelphia
May 29
PHL2:00 pmPhiladelphia
11h 15m
1 stop
LHR6:15 amLondon Heathrow
American Airlines
May 29
LHR1:30 pmLondon Heathrow
7h 55m
PHL4:25 pmPhiladelphia
Jun 9
PHL1:55 pmPhiladelphia
11h 20m
1 stop
LHR6:15 amLondon 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 $640, 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 $669.

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 $775. 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 $901.

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 $840.

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 25 weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $762 when searching 25 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 $680 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 April 2025, prices for London Heathrow Airport to Philadelphia flights are approximately 5% more expensive 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

$369

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 $369. The best round-trip flight deal from London Heathrow Airport to Philadelphia found on momondo in the last 72 hours is $595.
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 $583Free CancellationRating
6.6
6,818 reviews
Search British Airways flights
American AirlinesPriceFrom $596Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Aer LingusPriceFrom $640Free CancellationRating
7.0
1,070 reviews
Search Aer Lingus flights
IberiaPriceFrom $644Free CancellationRating
7.0
2,686 reviews
Search Iberia flights
FinnairPriceFrom $648Free CancellationRating
7.6
1,272 reviews
Search Finnair 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 $648. Generally, Finnair has 21 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 21 flights from London Heathrow Airport to Philadelphia in any given week. The average American Airlines airfare for this route is around $783, 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
Cherry Hill
North Wildwood
Dewey Beach
Lewes
Exton
Vineland
Essington
New Castle
Pottstown
Avalon
Stone Harbor

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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