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

JetBlue is the most popular carrier operating from Philadelphia to London

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

Frankfurt am Main (FRA) has the shortest average layover time for this route: 1h 18m.

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

Boston (BOS) was the most common stop: 73% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Boston (BOS) offer the lowest average round-trip price of $1.

What airlines fly to London?

British Airways, United Airlines and Iberia are the top three most popular airlines that fly to London from Philadelphia according to our data. British Airways is the first choice among our users, with 50% of people opting to fly with this airline when traveling to London. Keep in mind that there are 22 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

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

Flights connecting via Dublin (DUB) have the shortest average one-way travel time: 9h 35m.

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

As of August 2025, 15 flights take off from Philadelphia and land in London each day. The most common flight departure time for this route is 6:00PM, with 100% of daily flights taking off in the evening.

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

As of August 2025, 105 flights take off from Philadelphia and land in London each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

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

Prices for flights from Philadelphia Airport to London refresh daily.

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

The number of operators available for flights from Philadelphia Airport to London is 8 as of August 2025.

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

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 Philadelphia Airport to London.

What documentation or ID do you need to fly to London?

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

$210 Cheap Flights from Philadelphia to London in 2025

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Find the cheapest flights from Philadelphia to London

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

3:50 pm - 10:10 amPHL-LGW

13h 20m1 stop

12:30 pm - 9:25 amLGW-PHL

25h 55m2 stops

$487British Airways

Find Deal

Mon, Oct 6 - Thu, Nov 6

6:30 pm - 6:40 amPHL-LHR

7h 10mnonstop

8:55 am - 4:50 pmLHR-PHL

12h 55m1 stop

$488British Airways

Find Deal

Mon, Sep 29 - Thu, Oct 9

9:10 pm - 1:25 pmPHL-LHR

11h 15m1 stop

7:50 am - 1:55 pmLHR-PHL

11h 05m1 stop

$489American Airlines

Find Deal

Tue, Nov 11 - Tue, Nov 18

2:00 pm - 6:30 amPHL-LHR

12h 30m1 stop

7:50 am - 1:55 pmLHR-PHL

11h 05m1 stop

$490American Airlines

Find Deal

Wed, Oct 29 - Fri, Nov 7

2:02 pm - 10:10 amPHL-LGW

15h 08m1 stop

11:20 am - 9:56 pmLGW-PHL

15h 36m1 stop

$490

Find Deal

Mon, Oct 6 - Thu, Nov 6

8:30 pm - 12:40 pmPHL-LHR

11h 10m1 stop

1:25 pm - 7:00 pmLHR-PHL

10h 35m1 stop

$499Aer Lingus

Find Deal

Wed, Sep 3 - Wed, Sep 10

6:35 pm - 6:35 amPHL-LHR

7h 00mnonstop

7:05 pm - 3:35 pmLHR-PHL

25h 30m1 stop

$506Iberia

Find Deal

Sun, Nov 9 - Mon, Nov 24

7:50 pm - 8:05 amPHL-LHR

7h 15mnonstop

7:10 pm - 3:55 pmLHR-PHL

25h 45m1 stop

$507Iberia

Find Deal

Sun, Sep 14 - Wed, Oct 1

8:30 pm - 11:10 amPHL-LHR

9h 40m1 stop

12:00 pm - 7:00 pmLHR-PHL

12h 00m1 stop

$526Aer Lingus

Find Deal

Thu, Sep 11 - Tue, Sep 23

3:10 pm - 9:35 amPHL-LGW

13h 25m1 stop

12:10 pm - 9:50 pmLGW-PHL

14h 40m1 stop

$599JetBlue

Find Deal

Wed, Sep 3 - Tue, Sep 9

American Airlines flights from Philadelphia to London

Our best American Airlines deals on Philadelphia to London flight tickets

American Airlines

Nov 11

PHL9:10 pmPhiladelphia

11h 15m

1 stop

LHR1:25 pmLondon Heathrow

Nov 18

LHR7:50 amLondon Heathrow

11h 05m

1 stop

PHL1:55 pmPhiladelphia

$489

Find similar

American Airlines

Oct 29

PHL2:00 pmPhiladelphia

12h 30m

1 stop

LHR6:30 amLondon Heathrow

Nov 7

LHR7:50 amLondon Heathrow

11h 05m

1 stop

PHL1:55 pmPhiladelphia

$490

Find similar

American Airlines

Oct 8

PHL6:30 pmPhiladelphia

7h 10m

LHR6:40 amLondon Heathrow

Oct 22

LHR8:45 amLondon Heathrow

13h 05m

1 stop

PHL4:50 pmPhiladelphia

$493

Find similar

British Airways flights from Philadelphia to London

Our best British Airways deals on Philadelphia to London flight tickets

British Airways

Oct 6

PHL3:50 pmPhiladelphia

13h 20m

1 stop

LGW10:10 amLondon Gatwick

Nov 6

LGW12:30 pmLondon Gatwick

25h 55m

2 stops

PHL9:25 amPhiladelphia

$487

Find similar

British Airways

Sep 29

PHL6:30 pmPhiladelphia

7h 10m

LHR6:40 amLondon Heathrow

Oct 9

LHR8:55 amLondon Heathrow

12h 55m

1 stop

PHL4:50 pmPhiladelphia

$488

Find similar

British Airways

Sep 1

PHL5:29 pmPhiladelphia

9h 21m

1 stop

LHR7:50 amLondon Heathrow

Dec 15

LHR3:20 pmLondon Heathrow

27h 35m

1 stop

PHL1:55 pmPhiladelphia

$491

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 10/6

3:50 pm-10:10 am

1 stop13h 20m

London Gatwick

Thu 11/6

12:30 pm-9:25 am

2 stops25h 55m

$487

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Mon 9/29

6:30 pm-6:40 am

Nonstop7h 10m

London Heathrow

Thu 10/9

8:55 am-4:50 pm

1 stop12h 55m

$488

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Tue 11/11

9:10 pm-1:25 pm

1 stop11h 15m

London Heathrow

Tue 11/18

7:50 am-1:55 pm

1 stop11h 05m

$489

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 10/29

2:00 pm-6:30 am

1 stop12h 30m

London Heathrow

Fri 11/7

7:50 am-1:55 pm

1 stop11h 05m

$490

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Mon 10/6

2:02 pm-10:10 am

1 stop15h 08m

London Gatwick

Thu 11/6

11:20 am-9:56 pm

1 stop15h 36m

$490

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 9/3

8:30 pm-12:40 pm

1 stop11h 10m

London Heathrow

Wed 9/10

1:25 pm-7:00 pm

1 stop10h 35m

$499

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Sun 11/9

6:35 pm-6:35 am

Nonstop7h 00m

London Heathrow

Mon 11/24

7:05 pm-3:35 pm

1 stop25h 30m

$506

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Sun 9/14

7:50 pm-8:05 am

Nonstop7h 15m

London Heathrow

Wed 10/1

7:10 pm-3:55 pm

1 stop25h 45m

$507

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Thu 9/11

8:30 pm-11:10 am

1 stop9h 40m

London Heathrow

Tue 9/23

12:00 pm-7:00 pm

1 stop12h 00m

$526

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Wed 9/3

3:10 pm-9:35 am

1 stop13h 25m

London Gatwick

Tue 9/9

12:10 pm-9:50 pm

1 stop14h 40m

$599

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Philadelphia to London

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

Layovers

Other information

What is the cheapest month to fly to London?

The cheapest month to fly to London from Philadelphia is in February. Flight prices, which tend to average around $663, are often lower during this time because this is during the off-season. The month of September is another great option to travel to London, with average flight prices from Philadelphia averaging around $681.

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

The cheapest day to depart from Philadelphia to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $782. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $986. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from Philadelphia at noon is the least expensive time of day to depart. momondo users have found prices as low as $764 when looking at flights departing at noon. Flights to London are more costly in the afternoon, with an average ticket price of $883. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Philadelphia to London flight route?

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

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

You are more likely to see cheaper flights to London from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $826 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Philadelphia for as low as $722 on momondo.

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

There are 4 cabin classes available to choose from on Philadelphia to London 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 Philadelphia to London flights?

You could potentially save up to 45% on your flight if you consider stops on a Philadelphia to London flight.

How have Philadelphia to London flight prices changed over time?

As of August 2025, prices for Philadelphia to London flights are approximately 1% more expensive when compared to flights at the same time last year.

When to book flights from Philadelphia to London

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

Estimated round-trip price

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

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

Best Price Found	$464
Fastest flight time	7h 00m
Direct flights	Every day
Airports in London	1 airport

The best one-way flight to London from Philadelphia in the past 72 hours is $464. The best round-trip flight deal from Philadelphia to London found on momondo in the last 72 hours is $568.

The fastest flight from Philadelphia to London takes 7h 00m

Direct flights go from Philadelphia to London every day.

There is 1 airport near London: London Heathrow (LHR)

Search flight deals

How far is Philadelphia to London by plane?
A flight from Philadelphia to London will travel around 3538.9 mi. Typically, this will take 7h 00m by plane in normal conditions.
When did momondo last update prices for flights from Philadelphia Airport to London?
Prices for flights from Philadelphia Airport to London refresh daily.
How many operators does momondo search for flights from Philadelphia Airport to London?
The number of operators available for flights from Philadelphia Airport to London is 8 as of August 2025.
How old do you have to be to fly from Philadelphia Airport to London?
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 Philadelphia Airport to London.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London 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 London. 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 Philadelphia to London?
Based on momondo bookings for flights between Philadelphia and London, the leading plane model is Boeing 787-9 Dreamliner, making up 47.03% of the total bookings. Other popular models include Airbus A350-1000 with 46.61%, Boeing 787-8 Dreamliner with 1.95%, and Boeing 787 Dreamliner with 1.77%.
What is the most popular airline from Philadelphia to London?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Philadelphia to London is British Airways (41% of total bookings). The next most popular airlines are Iberia (22%), American Airlines (16%), and JetBlue (7%).

Best airlines flying from Philadelphia to London

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

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $507	Free Cancellation	Rating 7.2 2,916 reviews	Search JetBlue flights
British Airways	PriceFrom $515	Free Cancellation	Rating 6.7 7,291 reviews	Search British Airways flights
American Airlines	PriceFrom $516	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Air Canada	PriceFrom $556	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
Finnair	PriceFrom $581	Free Cancellation	Rating 7.6 1,320 reviews	Search Finnair flights
Aer Lingus	PriceFrom $585	Free Cancellation	Rating 7.1 1,228 reviews	Search Aer Lingus flights
Iberia	PriceFrom $607	Free Cancellation	Rating 7.0 2,884 reviews	Search Iberia flights
United Airlines	PriceFrom $673	Free Cancellation	Rating 7.4 8,930 reviews	Search United Airlines flights

Finnair Flights From Philadelphia to London
Finnair operates around 21 flights from Philadelphia to London every week. The average price of these flights found in the last 72 hours has been $791, but momondo users have found Finnair deals from Philadelphia to London from as low as $581 round-trip. Finnair has been scored 7.6/10 in 1,320 reviews.
American Airlines Flights From Philadelphia to London
$516 is the best American Airlines flight deal from Philadelphia to London found on momondo over the last 72 hours. The average American Airlines ticket price found was closer to $857, however, with flight time and availability significantly affecting the price. American Airlines (7.2/10 from 10,000 user reviews) flies into London from Philadelphia 21 times in an average week so prices can vary.

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Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Philadelphia.

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

Yes. momondo allows you to filter the results for Philadelphia to London flights to just show those with flexible booking policies.

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

Once you have performed a search for Philadelphia to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to London from Philadelphia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your London 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.

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Flights to Manchesterfrom $383

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Flights to Belfastfrom $499

Flights to Newcastle upon Tynefrom $479

Flights to Bristolfrom $456

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Flights to Liverpoolfrom $450

Flights to Aberdeenfrom $518

Flights to Leedsfrom $468

Flights to Cardifffrom $587

Cheap flights from Philadelphia to London from $210

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to London departing on 9/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

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Filter for what you want

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Find the cheapest flights from Philadelphia to London

Cheap round-trip flights

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American Airlines flights from Philadelphia to London

Our best American Airlines deals on Philadelphia to London flight tickets

British Airways flights from Philadelphia to London

Our best British Airways deals on Philadelphia to London flight tickets

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

See travel insights to London from

How to get the cheapest flight ticket from Philadelphia to London

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 London?

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

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

What is the cheapest Philadelphia to London flight route?

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

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

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

There are 4 cabin classes available to choose from on Philadelphia to London 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 Philadelphia to London flights?

You could potentially save up to 45% on your flight if you consider stops on a Philadelphia to London flight.

How have Philadelphia to London flight prices changed over time?

As of August 2025, prices for Philadelphia to London flights are approximately 1% more expensive when compared to flights at the same time last year.

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

JetBlue is the most popular carrier operating from Philadelphia to London

What airlines fly to London?

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

Boston (BOS) was the most common stop: 73% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Boston (BOS) offer the lowest average round-trip price of $1.

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

Flights connecting via Dublin (DUB) have the shortest average one-way travel time: 9h 35m.

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

Frankfurt am Main (FRA) has the shortest average layover time for this route: 1h 18m.

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

As of August 2025, 15 flights take off from Philadelphia and land in London each day. The most common flight departure time for this route is 6:00PM, with 100% of daily flights taking off in the evening.

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

As of August 2025, 105 flights take off from Philadelphia and land in London each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

When to book flights from Philadelphia to London

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in London

How far is Philadelphia to London by plane?

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

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

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

What documentation or ID do you need to fly to London?

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

What is the most popular airline from Philadelphia to London?

Best airlines flying from Philadelphia to London

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

Finnair Flights From Philadelphia to London

American Airlines Flights From Philadelphia to London

Traveling to a place near London?

Why use momondo?

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

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

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

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

An easier way to manage your London 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 Kingdom