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

JetBlue, Aer Lingus, and British Airways 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, British Airways have had the least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

What airlines fly to Philadelphia?

British Airways, United Airlines and American 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 17 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

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 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 17% 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 175 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 January 2026, there are 4 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.

$288 Cheap Flights from London Heathrow Airport to Philadelphia in 2026

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

As of January 2026, there are 70 flights per week flying from London Heathrow Airport to Philadelphia. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

Q: What is the typical price of a round-trip flight between London Heathrow Airport and Philadelphia?

Prices are currently low for flights on this route. Typical prices usually range from $665 to $1,004. The lowest price recently found on this route was $610.

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Find the cheapest flights from London Heathrow Airport to Philadelphia

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:35 pm - 10:51 pm

LHR

PHL

14h 16m

1 stop

3:30 pm - 7:10 am

PHL

LHR

10h 40m

1 stop

$610United Airlines

Fri, Feb 27 - Fri, Mar 6

10:00 am - 11:13 pm

LHR

PHL

18h 13m

2 stops

12:29 pm - 10:15 am

PHL

LHR

16h 46m

2 stops

$612Delta

Mon, Jan 26 - Mon, Feb 2

7:50 am - 2:05 pm

LHR

PHL

11h 15m

1 stop

6:35 pm - 6:35 am

PHL

LHR

7h 00mnonstop

$613British Airways

Thu, Feb 5 - Mon, Feb 9

11:10 am - 3:25 pm

LHR

PHL

33h 15m

1 stop

8:02 pm - 7:55 am

PHL

LHR

30h 53m

2 stops

$614United Airlines

Fri, Feb 13 - Sat, Feb 14

7:50 am - 1:55 pm

LHR

PHL

11h 05m

1 stop

7:40 pm - 7:50 am

PHL

LHR

7h 10mnonstop

$615British Airways

Fri, Feb 20 - Sun, Mar 1

1:25 pm - 6:55 pm

LHR

PHL

10h 30m

1 stop

5:55 pm - 8:00 am

PHL

LHR

9h 05m

1 stop

$616British Airways

Fri, May 1 - Tue, May 5

1:25 pm - 6:55 pm

LHR

PHL

10h 30m

1 stop

7:50 pm - 7:50 am

PHL

LHR

7h 00mnonstop

$617British Airways

Thu, Apr 23 - Mon, Apr 27

8:55 am - 9:16 pm

LHR

PHL

17h 21m

2 stops

12:29 pm - 9:20 am

PHL

LHR

15h 51m

2 stops

$618Virgin Atlantic

Mon, Jan 26 - Mon, Feb 2

7:50 am - 1:55 pm

LHR

PHL

11h 05m

1 stop

7:40 pm - 7:50 am

PHL

LHR

7h 10mnonstop

$619American Airlines

Thu, Feb 12 - Thu, Feb 19

12:30 pm - 3:30 pm

LHR

PHL

8h 00mnonstop

7:50 pm - 7:50 am

PHL

LHR

7h 00mnonstop

$620Finnair

Wed, Apr 22 - Wed, May 13

British Airways flights from London Heathrow Airport to Philadelphia

Our best British Airways deals on London Heathrow Airport to Philadelphia flight tickets

British Airways

Feb 5

LHR7:50 amLondon Heathrow

11h 15m

1 stop

PHL2:05 pmPhiladelphia

Feb 9

PHL6:35 pmPhiladelphia

7h 00m

LHR6:35 amLondon Heathrow

$613

British Airways

Feb 20

LHR7:50 amLondon Heathrow

11h 05m

1 stop

PHL1:55 pmPhiladelphia

Mar 1

PHL7:40 pmPhiladelphia

7h 10m

LHR7:50 amLondon Heathrow

$615

British Airways

May 1

LHR1:25 pmLondon Heathrow

10h 30m

1 stop

PHL6:55 pmPhiladelphia

May 5

PHL5:55 pmPhiladelphia

9h 05m

1 stop

LHR8:00 amLondon Heathrow

$616

Virgin Atlantic flights from London Heathrow Airport to Philadelphia

Our best Virgin Atlantic deals on London Heathrow Airport to Philadelphia flight tickets

Virgin Atlantic

Jan 26

LHR8:55 amLondon Heathrow

17h 21m

2 stops

PHL9:16 pmPhiladelphia

Feb 2

PHL12:29 pmPhiladelphia

15h 51m

2 stops

LHR9:20 amLondon Heathrow

$618

Virgin Atlantic

Feb 8

LHR1:00 pmLondon Heathrow

32h 30m

1 stop

PHL4:30 pmPhiladelphia

Feb 10

PHL11:22 amPhiladelphia

15h 28m

1 stop

LHR7:50 amLondon Heathrow

$644

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 2/27

1:35 pm-10:51 pm

1 stop14h 16m

Philadelphia

Fri 3/6

3:30 pm-7:10 am

1 stop10h 40m

$610

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 1/26

10:00 am-11:13 pm

2 stops18h 13m

Philadelphia

Mon 2/2

12:29 pm-10:15 am

2 stops16h 46m

$612

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 2/5

7:50 am-2:05 pm

1 stop11h 15m

Philadelphia

Mon 2/9

6:35 pm-6:35 am

Nonstop7h 00m

$613

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 2/13

11:10 am-3:25 pm

1 stop33h 15m

Philadelphia

Sat 2/14

8:02 pm-7:55 am

2 stops30h 53m

$614

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 2/20

7:50 am-1:55 pm

1 stop11h 05m

Philadelphia

Sun 3/1

7:40 pm-7:50 am

Nonstop7h 10m

$615

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 5/1

1:25 pm-6:55 pm

1 stop10h 30m

Philadelphia

Tue 5/5

5:55 pm-8:00 am

1 stop9h 05m

$616

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 4/23

1:25 pm-6:55 pm

1 stop10h 30m

Philadelphia

Mon 4/27

7:50 pm-7:50 am

Nonstop7h 00m

$617

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 1/26

8:55 am-9:16 pm

2 stops17h 21m

Philadelphia

Mon 2/2

12:29 pm-9:20 am

2 stops15h 51m

$618

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 2/12

7:50 am-1:55 pm

1 stop11h 05m

Philadelphia

Thu 2/19

7:40 pm-7:50 am

Nonstop7h 10m

$619

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 4/22

12:30 pm-3:30 pm

Nonstop8h 00m

Philadelphia

Wed 5/13

7:50 pm-7:50 am

Nonstop7h 00m

$620

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 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 February. Flight prices, which tend to average around $641, are often lower during this time because this is during the off-season. The month of March is another great option to travel to Philadelphia, with average flight prices from London Heathrow Airport averaging around $649.

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 Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $772. 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 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 at noon. momondo users have found flights departing from London Heathrow Airport to Philadelphia at noon for as low as $807. 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 $826.

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 $754 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 $681 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?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Philadelphia.

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

As of January 2026, prices for London Heathrow Airport to Philadelphia flights are approximately 9% 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	$611
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 $611. The best round-trip flight deal from London Heathrow Airport to Philadelphia found on momondo in the last 72 hours is $739.

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 in Philadelphia. From London Heathrow Airport there are direct flights to Philadelphia (PHL).

Search flight deals

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 55m.
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 January 2026, there are 4 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 (52.55% of total bookings). The next most popular plane models are Boeing 777 (10.16%), Boeing 787-9 Dreamliner (7.60%), and Airbus A330-900neo (5.75%).
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 64% of the total bookings. Other popular airlines include American Airlines with 19%, Aer Lingus with 11%, 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 3,086 reviews	Search Iberia flights
American Airlines	PriceFrom $592	Free Cancellation	Rating 7.2 11,117 reviews	Search American Airlines flights
British Airways	PriceFrom $612	Free Cancellation	Rating 6.7 7,671 reviews	Search British Airways flights
Aer Lingus	PriceFrom $670	Free Cancellation	Rating 7.2 1,435 reviews	Search Aer Lingus flights

American Airlines Flights From London Heathrow Airport to Philadelphia
The lowest priced American Airlines flight from London Heathrow Airport to Philadelphia from the last 72 hours was $592. Generally, American Airlines has 14 flights on this route every week with an average price of $814. American Airlines is rated 7.2/10 by our users.
Aer Lingus Flights From London Heathrow Airport to Philadelphia
Aer Lingus (7.2/10 from 1,435 reviews) operates around 7 flights from London Heathrow Airport to Philadelphia in any given week. The average Aer Lingus airfare for this route is around $1,182, with deals from around $670 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 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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Cheap flights from London Heathrow Airport to Philadelphia from $288

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Find the cheapest flights from London Heathrow Airport to Philadelphia

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British Airways flights from London Heathrow Airport to Philadelphia

Our best British Airways deals on London Heathrow Airport to Philadelphia flight tickets

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Our best Virgin Atlantic deals on London Heathrow Airport to Philadelphia flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Philadelphia that are best for you.

See travel insights to Philadelphia from

How to get the cheapest flight ticket from London Heathrow Airport to Philadelphia

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?

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?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Philadelphia.

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

As of January 2026, prices for London Heathrow Airport to Philadelphia flights are approximately 9% cheaper when compared to flights at the same time last year.

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

JetBlue, Aer Lingus, and British Airways 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 17% 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 175 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, British Airways have had the least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

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

10 flights are operational daily from London Heathrow Airport to Philadelphia as of January 2026. The most popular departure time for this route is 10:00AM, with 50% of flights per day taking off at noon.

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

As of January 2026, there are 70 flights per week flying from London Heathrow Airport to Philadelphia. The most common day of the week flights depart is Mon, with 14% 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

American Airlines Flights From London Heathrow Airport to Philadelphia

Aer Lingus 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