What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

What airlines fly to Philadelphia?

British Airways, American Airlines and United Airlines are the top three most popular airlines that fly to Philadelphia from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 16 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from London Heathrow to Philadelphia?

Virgin Atlantic, British Airways, and Air Canada are the most popular carriers operating from London Heathrow to Philadelphia

Which airline has the best punctuality record on London to Philadelphia flights?

According to our data, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 17% of their flights experiencing any sort of delay.

What is the most punctual flight time for London to Philadelphia flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

How often are flights from London to Philadelphia delayed?

Historically, on average around 18% of flights between London and Philadelphia have experienced a delay on any given week. The average delay length over the past 12 months has been 172 minutes.

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?

As of November 2025, there are 5 operators available to choose from 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.

$490 Cheap Flights from London Heathrow Airport to Philadelphia in 2025/26

Q: How many flights depart from London Heathrow Airport to Philadelphia on average per day?

6 flights are operational daily from London Heathrow Airport to Philadelphia as of November 2025. The most popular departure time for this route is 10:00AM, with 64% of flights per day taking off at noon.

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9:20 am - 6:23 pmLHR-PHL

14h 03m1 stop

6:00 am - 6:55 amPHL-LHR

19h 55m1 stop

$601JetBlue

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Mon, Feb 9 - Sun, Feb 15

8:25 am - 9:13 amLHR-PHL

29h 48m1 stop

3:15 pm - 6:30 amPHL-LHR

10h 15m1 stop

$603JetBlue

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Thu, Apr 30 - Tue, May 5

7:25 am - 3:57 pmLHR-PHL

37h 32m2 stops

6:00 am - 6:55 amPHL-LHR

19h 55m1 stop

$611Icelandair

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Tue, Nov 18 - Thu, Nov 27

9:20 am - 3:55 pmLHR-PHL

11h 35m1 stop

4:32 pm - 6:55 amPHL-LHR

9h 23m1 stop

$622Icelandair

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Fri, Nov 28 - Wed, Dec 3

7:50 am - 1:55 pmLHR-PHL

11h 05m1 stop

6:35 pm - 6:35 amPHL-LHR

7h 00mnonstop

$638British Airways

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Tue, Dec 2 - Tue, Dec 9

7:50 am - 2:00 pmLHR-PHL

11h 10m1 stop

6:35 pm - 6:35 amPHL-LHR

7h 00mnonstop

$656British Airways

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Wed, Dec 3 - Wed, Dec 10

7:50 am - 4:00 pmLHR-PHL

13h 10m1 stop

5:30 pm - 9:05 amPHL-LHR

10h 35m1 stop

$659Aer Lingus

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Fri, Dec 5 - Fri, Dec 12

9:50 am - 4:00 pmLHR-PHL

11h 10m1 stop

5:30 pm - 8:05 amPHL-LHR

9h 35m1 stop

$664Aer Lingus

Find Deal

Mon, Dec 8 - Mon, Dec 15

7:50 am - 2:00 pmLHR-PHL

11h 10m1 stop

7:50 pm - 7:50 amPHL-LHR

7h 00mnonstop

$671American Airlines

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Mon, Dec 8 - Mon, Dec 15

7:50 am - 1:55 pmLHR-PHL

11h 05m1 stop

7:50 pm - 7:50 amPHL-LHR

7h 00mnonstop

$672American Airlines

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Tue, Dec 2 - Tue, Dec 9

Air Canada flights from London Heathrow Airport to Philadelphia

Our best Air Canada deals on London Heathrow Airport to Philadelphia flight tickets

Air Canada

Feb 18

LHR9:00 amLondon Heathrow

18h 46m

2 stops

PHL10:46 pmPhiladelphia

Feb 22

PHL7:50 amPhiladelphia

42h 20m

2 stops

LHR7:10 amLondon Heathrow

$621

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Air Canada

Nov 17

LHR9:00 amLondon Heathrow

18h 46m

2 stops

PHL10:46 pmPhiladelphia

Nov 23

PHL9:20 amPhiladelphia

30h 15m

2 stops

LHR8:35 pmLondon Heathrow

$633

Find similar

Air Canada

Dec 8

LHR1:25 pmLondon Heathrow

38h 21m

2 stops

PHL10:46 pmPhiladelphia

Dec 15

PHL3:30 pmPhiladelphia

10h 40m

1 stop

LHR7:10 amLondon Heathrow

$642

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United Airlines flights from London Heathrow Airport to Philadelphia

Our best United Airlines deals on London Heathrow Airport to Philadelphia flight tickets

United Airlines

Dec 3

LHR6:35 amLondon Heathrow

21h 11m

2 stops

PHL10:46 pmPhiladelphia

Dec 10

PHL4:35 pmPhiladelphia

23h 00m

2 stops

LHR8:35 pmLondon Heathrow

$625

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United Airlines

Dec 1

LHR1:30 pmLondon Heathrow

31h 35m

1 stop

PHL4:05 pmPhiladelphia

Dec 8

PHL7:50 amPhiladelphia

31h 45m

2 stops

LHR8:35 pmLondon Heathrow

$641

Find similar

United Airlines

Dec 1

LHR1:50 pmLondon Heathrow

37h 56m

2 stops

PHL10:46 pmPhiladelphia

Dec 8

PHL7:50 amPhiladelphia

31h 45m

2 stops

LHR8:35 pmLondon Heathrow

$663

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LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 2/9

9:20 am-6:23 pm

1 stop14h 03m

Philadelphia

Sun 2/15

6:00 am-6:55 am

1 stop19h 55m

$601

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 4/30

8:25 am-9:13 am

1 stop29h 48m

Philadelphia

Tue 5/5

3:15 pm-6:30 am

1 stop10h 15m

$603

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 11/18

7:25 am-3:57 pm

2 stops37h 32m

Philadelphia

Thu 11/27

6:00 am-6:55 am

1 stop19h 55m

$611

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 11/28

9:20 am-3:55 pm

1 stop11h 35m

Philadelphia

Wed 12/3

4:32 pm-6:55 am

1 stop9h 23m

$622

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 12/2

7:50 am-1:55 pm

1 stop11h 05m

Philadelphia

Tue 12/9

6:35 pm-6:35 am

Nonstop7h 00m

$638

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 12/3

7:50 am-2:00 pm

1 stop11h 10m

Philadelphia

Wed 12/10

6:35 pm-6:35 am

Nonstop7h 00m

$656

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 12/5

7:50 am-4:00 pm

1 stop13h 10m

Philadelphia

Fri 12/12

5:30 pm-9:05 am

1 stop10h 35m

$659

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 12/8

9:50 am-4:00 pm

1 stop11h 10m

Philadelphia

Mon 12/15

5:30 pm-8:05 am

1 stop9h 35m

$664

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 12/8

7:50 am-2:00 pm

1 stop11h 10m

Philadelphia

Mon 12/15

7:50 pm-7:50 am

Nonstop7h 00m

$671

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 12/2

7:50 am-1:55 pm

1 stop11h 05m

Philadelphia

Tue 12/9

7:50 pm-7:50 am

Nonstop7h 00m

$672

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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

Prices

Airlines

Delays

Other information

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 $635, 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 $673.

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 $766. On the other hand, Monday 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 $890.

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 $820.

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 weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $765 when searching 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 $679 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 1% 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 November 2025, prices for London Heathrow Airport to Philadelphia flights are approximately 8% 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	$572
Fastest flight time	7h 55m
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 $572. The best round-trip flight deal from London Heathrow Airport to Philadelphia found on momondo in the last 72 hours is $723.

The fastest flight from London Heathrow Airport to Philadelphia takes 7h 55m

Direct flights go from London Heathrow Airport to Philadelphia every day.

There is 1 airport near Philadelphia: Philadelphia (PHL)

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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 11h 05m.
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?
As of November 2025, there are 5 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London Heathrow Airport to Philadelphia is Airbus A350-1000 (42.14% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (39.76%), Airbus A319 (3.61%), and Boeing 777 (2.87%).
What is the most popular airline from London Heathrow Airport to Philadelphia?
Based on momondo bookings for flights between London Heathrow Airport and Philadelphia, the leading airline is British Airways, making up 59% of the total bookings. Other popular airlines include American Airlines with 19%, Aer Lingus with 10%, and Iberia with 6%.

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
Iberia	PriceFrom $559	Free Cancellation	Rating 7.0 3,007 reviews	Search Iberia flights
American Airlines	PriceFrom $597	Free Cancellation	Rating 7.2 11,041 reviews	Search American Airlines flights
British Airways	PriceFrom $619	Free Cancellation	Rating 6.7 7,496 reviews	Search British Airways flights
Finnair	PriceFrom $642	Free Cancellation	Rating 7.6 1,335 reviews	Search Finnair flights
Aer Lingus	PriceFrom $670	Free Cancellation	Rating 7.2 1,365 reviews	Search Aer Lingus 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 $642. Generally, Finnair has 7 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 11,040 reviews) operates around 7 flights from London Heathrow Airport to Philadelphia in any given week. The average American Airlines airfare for this route is around $814, with deals from around $597 rare but found on momondo. Referenced prices are for round-trip London Heathrow Airport to Philadelphia flight searches in the last 72 hours.

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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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Cheap flights from London Heathrow Airport to Philadelphia from $490

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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?

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

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

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?

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 1% 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 November 2025, prices for London Heathrow Airport to Philadelphia flights are approximately 8% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from London Heathrow to Philadelphia?

Virgin Atlantic, British Airways, and Air Canada are the most popular carriers operating from London Heathrow to Philadelphia

What airlines fly to Philadelphia?

How often are flights from London to Philadelphia delayed?

Historically, on average around 18% of flights between London and Philadelphia have experienced a delay on any given week. The average delay length over the past 12 months has been 172 minutes.

What is the most punctual flight time for London to Philadelphia flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on London to Philadelphia flights?

According to our data, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 17% of their flights experiencing any sort of delay.

How many flights depart from London Heathrow Airport to Philadelphia on average per day?

6 flights are operational daily from London Heathrow Airport to Philadelphia as of November 2025. The most popular departure time for this route is 10:00AM, with 64% of flights per day taking off at noon.

How many flights depart from London Heathrow Airport to Philadelphia on average per week?

As of November 2025, there are 47 flights per week flying from London Heathrow Airport to Philadelphia. The most common day of the week flights depart is Mon, with 21% of flights taking off on this day.

When to book flights from London Heathrow Airport to Philadelphia

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

Fastest flight time

Direct flights

Airports in Philadelphia

How far is London Heathrow to Philadelphia by plane?

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

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?

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

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

Finnair Flights From London Heathrow Airport to Philadelphia

American Airlines Flights From London Heathrow Airport to Philadelphia

Traveling to a place near Philadelphia?

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Philadelphia 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Pennsylvania