Which stopover airport has the shortest travel time from London to Philadelphia?

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 10h 06m.

Which stopover airport has the shortest connection time from London to Philadelphia?

Montreal (YUL) has the shortest average stopover time for this route: 1h 26m.

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

JetBlue, British Airways, and Lufthansa are the most popular carriers operating from London to Philadelphia

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

8 flights are operational daily from London to Philadelphia as of January 2026. The most popular departure time for this route is 13:00, with 63% of flights per day taking off in the afternoon.

Which airport is the most popular for stopovers for flights between London and Philadelphia?

Dublin (DUB) was the most common stop: 68% of momondo users choosing one-stop flights on this route connected there.

Which airlines fly to Philadelphia?

Virgin Atlantic, British Airways and Lufthansa are the top three most popular airlines that fly to Philadelphia from London according to our data. Virgin Atlantic is the first choice among our users, with 43% of people opting to fly with this airline when travelling to Philadelphia. Keep in mind that there are 22 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

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

60 flights are operational weekly from London to Philadelphia as of January 2026. The most popular departure day for this route is Wed, with 17% of flights per week taking off on this day.

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 175 minutes.

Which stopover airport offers the lowest fares from London to Philadelphia?

Flights via Boston (BOS) offer the lowest average return price of £483.

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

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

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

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

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

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

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

Prices for flights from London to Philadelphia Airport are refreshed on a daily basis.

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

As of January 2026, there are 9 operators available to choose from for flights from London to Philadelphia Airport.

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

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

The travel and health documents you'll need for your trip to Philadelphia Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Philadelphia Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£211 Cheap Flights from London to Philadelphia in 2026

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14:00 - 07:36

LGW

PHL

21h 36m

1 stop

13:06 - 10:00

PHL

LGW

16h 54m

1 stop

£420Multiple Airlines

Fri, 13 Mar - Fri, 20 Mar

07:50 - 14:05

LHR

PHL

11h 15m

1 stop

19:40 - 07:50

PHL

LHR

7h 10mdirect

£421British Airways

Thu, 5 Feb - Wed, 18 Feb

14:00 - 18:47

LGW

PHL

33h 47m

1 stop

05:30 - 10:00

PHL

LGW

23h 30m

1 stop

£421Multiple Airlines

Mon, 9 Feb - Mon, 16 Feb

06:30 - 21:36

LHR

PHL

20h 06m

2 stops

15:05 - 10:50

PHL

LHR

14h 45m

1 stop

£422United Airlines

Tue, 3 Feb - Wed, 18 Feb

14:00 - 12:39

LGW

PHL

27h 39m

1 stop

05:05 - 10:00

PHL

LGW

23h 55m

1 stop

£422Multiple Airlines

Mon, 9 Feb - Mon, 16 Feb

06:50 - 18:54

LHR

PHL

17h 04m

2 stops

10:35 - 06:40

PHL

LHR

15h 05m

1 stop

£423United Airlines

Thu, 5 Feb - Tue, 17 Feb

06:50 - 18:54

LHR

PHL

17h 04m

2 stops

10:10 - 07:55

PHL

LHR

16h 45m

1 stop

£423United Airlines

Tue, 3 Feb - Tue, 10 Feb

06:50 - 14:50

LHR

PHL

13h 00m

2 stops

15:30 - 20:35

PHL

LHR

24h 05m

2 stops

£424Air Canada

Thu, 12 Feb - Thu, 26 Feb

06:50 - 14:47

LHR

PHL

12h 57m

2 stops

15:30 - 07:10

PHL

LHR

10h 40m

1 stop

£426Air Canada

Mon, 23 Feb - Sat, 7 Mar

10:00 - 23:13

LCY

PHL

18h 13m

2 stops

17:33 - 09:30

PHL

LCY

11h 57m

2 stops

£585KLM

Mon, 2 Mar - Mon, 16 Mar

British Airways flights from London to Philadelphia

Our best British Airways deals on London to Philadelphia flight tickets

British Airways

5 Feb

LHR07:50London Heathrow

11h 15m

1 stop

PHL14:05Philadelphia

18 Feb

PHL19:40Philadelphia

7h 10m

LHR07:50London Heathrow

£421

British Airways

3 Feb

LHR07:50London Heathrow

11h 15m

1 stop

PHL14:05Philadelphia

19 Feb

PHL15:57Philadelphia

10h 03m

1 stop

LHR07:00London Heathrow

£425

British Airways

11 Feb

LHR07:50London Heathrow

11h 15m

1 stop

PHL14:05Philadelphia

10 May

PHL22:00Philadelphia

15h 55m

1 stop

LHR18:55London Heathrow

£426

United Airlines flights from London to Philadelphia

Our best United Airlines deals on London to Philadelphia flight tickets

United Airlines

3 Feb

LHR06:30London Heathrow

20h 06m

2 stops

PHL21:36Philadelphia

18 Feb

PHL15:05Philadelphia

14h 45m

1 stop

LHR10:50London Heathrow

£422

United Airlines

5 Feb

LHR06:50London Heathrow

17h 04m

2 stops

PHL18:54Philadelphia

17 Feb

PHL10:35Philadelphia

15h 05m

1 stop

LHR06:40London Heathrow

£423

United Airlines

3 Feb

LHR06:50London Heathrow

17h 04m

2 stops

PHL18:54Philadelphia

10 Feb

PHL10:10Philadelphia

16h 45m

1 stop

LHR07:55London Heathrow

£423

Fly from

Fly to

Route

Depart

Return

Price

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Fri 13/3

14:00-07:36

1 stop21h 36m

Philadelphia

Fri 20/3

13:06-10:00

1 stop16h 54m

£420

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 5/2

07:50-14:05

1 stop11h 15m

Philadelphia

Wed 18/2

19:40-07:50

Nonstop7h 10m

£421

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 9/2

14:00-18:47

1 stop33h 47m

Philadelphia

Mon 16/2

05:30-10:00

1 stop23h 30m

£421

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 3/2

06:30-21:36

2 stops20h 06m

Philadelphia

Wed 18/2

15:05-10:50

1 stop14h 45m

£422

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 9/2

14:00-12:39

1 stop27h 39m

Philadelphia

Mon 16/2

05:05-10:00

1 stop23h 55m

£422

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 5/2

06:50-18:54

2 stops17h 04m

Philadelphia

Tue 17/2

10:35-06:40

1 stop15h 05m

£423

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 3/2

06:50-18:54

2 stops17h 04m

Philadelphia

Tue 10/2

10:10-07:55

1 stop16h 45m

£423

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 12/2

06:50-14:50

2 stops13h 00m

Philadelphia

Thu 26/2

15:30-20:35

2 stops24h 05m

£424

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 23/2

06:50-14:47

2 stops12h 57m

Philadelphia

Sat 7/3

15:30-07:10

1 stop10h 40m

£426

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Mon 2/3

10:00-23:13

2 stops18h 13m

Philadelphia

Mon 16/3

17:33-09:30

2 stops11h 57m

£585

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How to get the cheapest flight ticket from London 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

Stopovers

Other information

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

What is the cheapest month to fly to Philadelphia?

If you aren’t able to travel during the month of January, then book flights to Philadelphia from London during February instead. Flights to Philadelphia in February, while not as cheap as those in January, still average around £476.

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

Our data shows that Wednesday is the least expensive day to fly to Philadelphia. Tickets to fly out on this day can be as low as £584. On the other hand, Sunday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £632.

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

The cheapest time of day to fly to Philadelphia is at midday when flights can be purchased for as low as £598. 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 to Philadelphia flight route?

Fly from London Heathrow to Philadelphia for the best London - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around £544 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from London for as low as £491 on momondo.

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

There are 3 cabin classes available to choose from on London 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 to Philadelphia flights?

You could potentially save up to 19% on your flight if you consider stops on a London to Philadelphia flight.

How have London to Philadelphia flight prices changed over time?

As of January 2026, prices for London to Philadelphia flights are approximately 13% cheaper when compared to flights at the same time last year.

When to book flights from London to Philadelphia

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

Estimated return price

Cheap London to Philadelphia (LON to PHL) flight deals and tips

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

Best price found	£395
Fastest flight time	7h 45m
Direct flights	Mon, Tue, Wed, Thu, Fri and Sat
Airports in Philadelphia	1 airport

The best one-way flight to Philadelphia from London in the past 72 hours is £395. The best return flight deal from London to Philadelphia found on momondo in the last 72 hours is £481.

The fastest flight from London to Philadelphia takes 7h 45m

Direct flights go from London to Philadelphia on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. Airline offering direct flights is Finnair..

There is 1 airport in Philadelphia. From London there are direct flights to Philadelphia (PHL).

Search flight deals

How far is London to Philadelphia by plane?
London and Philadelphia are 3538.9 mi apart from one another. 7h 45m is a normal flight duration for this route.
When did momondo last update prices for flights from London to Philadelphia Airport?
Prices for flights from London to Philadelphia Airport are refreshed on a daily basis.
How many operators does momondo search for flights from London to Philadelphia Airport?
As of January 2026, there are 9 operators available to choose from for flights from London to Philadelphia Airport.
How old do you have to be to fly from London 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 to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The travel and health documents you'll need for your trip to Philadelphia Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Philadelphia Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to Philadelphia?
momondo data reveals that the most frequently booked plane model on the route from London to Philadelphia is Airbus A350-1000, representing 53.07% of all bookings. The subsequent popular models are Boeing 777 at 10.36%, Boeing 787-9 Dreamliner at 7.25%, and Airbus A330-900neo at 6.94%.
What is the most popular airline from London to Philadelphia?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London to Philadelphia is British Airways (66% of total bookings). The next most popular airlines are Finnair (10%), Aer Lingus (5%), and United Airlines (5%).

Best airlines flying from London to Philadelphia

Compare and see reviews for airlines that fly from London to Philadelphia with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom £294	Free Cancellation	Rating 7.4 9,214 reviews	Search United Airlines flights
Air Canada	PriceFrom £328	Free Cancellation	Rating 7.1 10,667 reviews	Search Air Canada flights
Lufthansa	PriceFrom £391	Free Cancellation	Rating 6.8 7,756 reviews	Search Lufthansa flights
JetBlue	PriceFrom £407	Free Cancellation	Rating 7.2 2,890 reviews	Search JetBlue flights
British Airways	PriceFrom £427	Free Cancellation	Rating 6.7 7,705 reviews	Search British Airways flights
Finnair	PriceFrom £431	Free Cancellation	Rating 7.6 1,356 reviews	Search Finnair flights
Iberia	PriceFrom £441	Free Cancellation	Rating 7.0 3,100 reviews	Search Iberia flights
American Airlines	PriceFrom £442	Free Cancellation	Rating 7.2 11,206 reviews	Search American Airlines flights
Aer Lingus	PriceFrom £451	Free Cancellation	Rating 7.2 1,443 reviews	Search Aer Lingus flights

Finnair Flights From London to Philadelphia
Finnair flies from London to Philadelphia around 12 times per week, with 1,356 momondo users rating the airline 7.6/10. The cheapest Finnair deal from London to Philadelphia in the last 72 hours was £431 (round-trip), much lower than the average airfare cost of £548 for Finnair flights on this route.
American Airlines Flights From London to Philadelphia
Another popular option for London to Philadelphia flights is American Airlines (7.2/10, 11,206 ratings). American Airlines flies from London to Philadelphia around 12 times per week, with deals starting from £442 round-trip and rising to an average price of around £573.

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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?

Flights from London to Philadelphia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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?

If you are simply researching potential flights to Philadelphia, momondo offers a useful price alert feature which will track prices for flights to Philadelphia from London and alert you when they change.

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Cheap flights from London to Philadelphia from £211

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 to Philadelphia departing on 2/3. 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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British Airways flights from London to Philadelphia

Our best British Airways deals on London to Philadelphia flight tickets

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Our best United Airlines deals on London to Philadelphia flight tickets

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

See travel insights to Philadelphia from

How to get the cheapest flight ticket from London to Philadelphia

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

What is the cheapest month to fly to Philadelphia?

If you aren’t able to travel during the month of January, then book flights to Philadelphia from London during February instead. Flights to Philadelphia in February, while not as cheap as those in January, still average around £476.

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?

The cheapest time of day to fly to Philadelphia is at midday when flights can be purchased for as low as £598. 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 to Philadelphia flight route?

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

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

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

There are 3 cabin classes available to choose from on London 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 to Philadelphia flights?

You could potentially save up to 19% on your flight if you consider stops on a London to Philadelphia flight.

How have London to Philadelphia flight prices changed over time?

As of January 2026, prices for London to Philadelphia flights are approximately 13% cheaper when compared to flights at the same time last year.

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

JetBlue, British Airways, and Lufthansa are the most popular carriers operating from London to Philadelphia

Which 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 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 departing 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 that experiences the fewest delays on this flight route. Sunday 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 fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

Which airport is the most popular for stopovers for flights between London and Philadelphia?

Dublin (DUB) was the most common stop: 68% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from London to Philadelphia?

Flights via Boston (BOS) offer the lowest average return price of £483.

Which stopover airport has the shortest travel time from London to Philadelphia?

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 10h 06m.

Which stopover airport has the shortest connection time from London to Philadelphia?

Montreal (YUL) has the shortest average stopover time for this route: 1h 26m.

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

8 flights are operational daily from London to Philadelphia as of January 2026. The most popular departure time for this route is 13:00, with 63% of flights per day taking off in the afternoon.

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

60 flights are operational weekly from London to Philadelphia as of January 2026. The most popular departure day for this route is Wed, with 17% of flights per week taking off on this day.

When to book flights from London to Philadelphia

Cheap London to Philadelphia (LON to PHL) flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in Philadelphia

How far is London to Philadelphia by plane?

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

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

How old do you have to be to fly from London to Philadelphia Airport?

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

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

What is the most popular airline from London to Philadelphia?

Best airlines flying from London to Philadelphia

Compare and see reviews for airlines that fly from London to Philadelphia with momondo

Finnair Flights From London to Philadelphia

American Airlines Flights From London to Philadelphia

Travelling to a place near Philadelphia?