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Cheap flights from London to Philadelphia from $278

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 1/22. 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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Find the cheapest flights from London to Philadelphia

Cheap round-trip flights

These are some of the best round-trip flight deals from London to Philadelphia that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from London to Philadelphia.

Cheap last minute flights

Planning a quick getaway from London to Philadelphia? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Philadelphia, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from London to Philadelphia

Find recent round-trip train or bus tickets from London to Philadelphia.

All round-trip flight deals to Philadelphia

The cheapest plane tickets to Philadelphia found on KAYAK recently.
8:25 am - 7:07 pmLHR-PHL
15h 42m1 stop
11:10 am - 5:55 amPHL-LHR
13h 45m1 stop
$472JetBlue
Find Deal
Tue, Jan 14 - Thu, Jan 30
8:25 am - 7:07 pmLHR-PHL
15h 42m1 stop
11:10 am - 5:55 amPHL-LHR
13h 45m1 stop
$486Icelandair
Find Deal
Wed, Jan 15 - Sun, Jan 19
8:55 am - 4:40 pmLHR-PHL
12h 45m1 stop
8:45 pm - 9:40 amPHL-LHR
31h 55m1 stop
$606Finnair
Find Deal
Wed, May 7 - Sun, May 11
10:55 am - 4:20 pmLHR-PHL
34h 25m1 stop
10:35 am - 8:40 amPHL-LHR
17h 05m1 stop
$614Finnair
Find Deal
Mon, Dec 23 - Mon, Jan 13
8:50 am - 4:25 pmLHR-PHL
12h 35m1 stop
1:40 pm - 5:55 amPHL-LHR
11h 15m1 stop
$633American Airlines
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Wed, Dec 4 - Wed, Dec 11
11:45 am - 7:55 pmLHR-PHL
13h 10m1 stop
10:20 pm - 9:20 amPHL-LHR
7h 00mnonstop
$638American Airlines
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Mon, Mar 3 - Wed, Mar 12
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$692British Airways
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Mon, Jan 6 - Thu, Jan 23
9:50 am - 4:25 pmLHR-PHL
11h 35m1 stop
9:10 pm - 1:25 pmPHL-LHR
11h 15m1 stop
$694British Airways
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Mon, Dec 9 - Mon, Dec 16
10:15 am - 1:15 pmLHR-PHL
8h 00mnonstop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$751Iberia
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Tue, Dec 10 - Mon, Dec 16
10:15 am - 1:15 pmLHR-PHL
8h 00mnonstop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$764Iberia
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Tue, Dec 10 - Mon, Dec 16
3:35 pm - 2:44 pmLTN-PHL
52h 09m2 stops
Wed, Jan 22
6:40 am - 2:44 pmSTN-PHL
37h 04m2 stops
Thu, Jan 23
9:50 am - 4:00 pmLHR-PHL
11h 10m1 stop
$509Aer Lingus
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Tue, Nov 26
1:25 pm - 7:05 pmLHR-PHL
10h 40m1 stop
$515Aer Lingus
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Mon, May 12
8:15 am - 4:20 pmLHR-PHL
13h 05m1 stop
$606British Airways
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Wed, Jan 22
6:05 am - 4:20 pmLHR-PHL
15h 15m1 stop
$607Iberia
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Mon, Jan 20
10:15 am - 1:30 pmLHR-PHL
8h 15mnonstop
$618Iberia
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Wed, Jan 15
11:45 am - 12:59 amLHR-PHL
18h 14m1 stop
$628British Airways
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Tue, Dec 31
7:40 pm - 2:05 pmLHR-PHL
23h 25m1 stop
$638Finnair
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Sun, Jan 26
10:15 am - 1:30 pmLHR-PHL
8h 15mnonstop
$684Finnair
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Mon, Jan 20
8:50 am - 4:00 pmLHR-PHL
12h 10m1 stop
5:30 pm - 8:05 amPHL-LHR
9h 35m1 stop
$657Aer Lingus
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Sun, Nov 24 - Sat, Dec 7
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
1:40 pm - 8:40 amPHL-LHR
14h 00m1 stop
$673Finnair
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Sun, Nov 24 - Sat, Dec 7
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
9:14 pm - 8:40 amPHL-LHR
30h 26m1 stop
$708Finnair
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Mon, Nov 25 - Mon, Dec 2
6:30 am - 4:00 pmSTN-PHL
14h 30m1 stop
5:30 pm - 9:35 amPHL-STN
11h 05m1 stop
Tue, Nov 26 - Sun, Dec 15
9:00 am - 4:00 pmLTN-PHL
12h 00m1 stop
5:30 pm - 8:50 amPHL-LTN
10h 20m1 stop
Tue, Nov 26 - Sun, Dec 15
11:45 am - 7:50 pmLHR-PHL
13h 05m1 stop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$830American Airlines
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Tue, Nov 26 - Tue, Dec 3
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$887Iberia
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Tue, Nov 26 - Tue, Dec 3
9:10 am - 4:25 pmLCY-PHL
12h 15m1 stop
9:25 pm - 12:40 pmPHL-LCY
10h 15m1 stop
$902British Airways
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Tue, Nov 26 - Tue, Dec 3
7:30 am - 4:25 pmLHR-PHL
13h 55m1 stop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$1,050Iberia
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Sat, Nov 23 - Mon, Nov 25
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$1,070British Airways
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Tue, Nov 26 - Sat, Dec 14
10:15 am - 1:30 pmLHR-PHL
8h 15mnonstop
9:15 pm - 9:20 amPHL-LHR
7h 05mnonstop
$664British Airways
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Tue, Jan 21 - Mon, Feb 17
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
$677Finnair
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Mon, Jan 6 - Thu, Jan 16
10:15 am - 1:30 pmLHR-PHL
8h 15mnonstop
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
Wed, Jan 8 - Wed, Jan 15
10:15 am - 1:30 pmLHR-PHL
8h 15mnonstop
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
$687British Airways
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Mon, Jan 13 - Mon, Jan 20
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
7:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$690Finnair
Find Deal
Mon, Feb 24 - Mon, Mar 24
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$692British Airways
Find Deal
Mon, Jan 6 - Thu, Jan 23
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
9:10 pm - 9:20 amPHL-LHR
7h 10mnonstop
$716Iberia
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Wed, Dec 4 - Tue, Dec 10
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$726Iberia
Find Deal
Wed, Dec 25 - Tue, Dec 31
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
9:15 pm - 9:20 amPHL-LHR
7h 05mnonstop
$728American Airlines
Find Deal
Wed, Feb 19 - Fri, Feb 28
1:10 pm - 4:20 pmLHR-PHL
8h 10mnonstop
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$739American Airlines
Find Deal
Tue, Dec 10 - Mon, Dec 16

British Airways flights from London to Philadelphia

Our best British Airways deals on London to Philadelphia flight tickets
British Airways
Jan 6
LHR10:15 amLondon Heathrow
8h 05m
PHL1:20 pmPhiladelphia
Jan 23
PHL6:40 pmPhiladelphia
6h 55m
LHR6:35 amLondon Heathrow
British Airways
Dec 9
LHR9:50 amLondon Heathrow
11h 35m
1 stop
PHL4:25 pmPhiladelphia
Dec 16
PHL9:10 pmPhiladelphia
11h 15m
1 stop
LHR1:25 pmLondon Heathrow
British Airways
Jan 6
LHR10:15 amLondon Heathrow
8h 05m
PHL1:20 pmPhiladelphia
Jan 23
PHL9:31 pmPhiladelphia
10h 54m
1 stop
LHR1:25 pmLondon Heathrow

Finnair flights from London to Philadelphia

Our best Finnair deals on London to Philadelphia flight tickets
Finnair
May 7
LHR8:55 amLondon Heathrow
12h 45m
1 stop
PHL4:40 pmPhiladelphia
May 11
PHL8:45 pmPhiladelphia
31h 55m
1 stop
LHR9:40 amLondon Heathrow
Finnair
Dec 23
LHR10:55 amLondon Heathrow
34h 25m
1 stop
PHL4:20 pmPhiladelphia
Jan 13
PHL10:35 amPhiladelphia
17h 05m
1 stop
LHR8:40 amLondon Heathrow
Finnair
Dec 11
LHR4:30 pmLondon Heathrow
27h 17m
1 stop
PHL2:47 pmPhiladelphia
Dec 17
PHL9:00 pmPhiladelphia
15h 45m
1 stop
LHR5:45 pmLondon Heathrow

See travel insights to Philadelphia from

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

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from London is in February. Flight prices, which tend to average around $664, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Philadelphia, with average flight prices from London averaging around $667.

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

The cheapest day to depart from London to Philadelphia is on a Monday. Travelers who choose to depart for Philadelphia on a Monday will often find tickets for as low as $719. On the other hand, Friday is the most expensive day to depart from London because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $891.

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 afternoon. momondo users have found flights departing from London to Philadelphia in the afternoon for as low as $715. 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 evening when prices are around $845.

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?

Most flyers found that booking tickets 55 days in advance of their planned departure date is the best time to get cheap flights to Philadelphia. During this timeframe, flight prices are around $742. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from London for as low as $646 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 55% 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 November 2024, prices for London to Philadelphia flights are approximately 4% more expensive 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 round-trip 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

$278

Fastest flight time

7h 45m

Direct flights

Every day

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from London in the past 72 hours is $278. The best round-trip flight deal from London to Philadelphia found on momondo in the last 72 hours is $472.
The fastest flight from London to Philadelphia takes 7h 45m
Direct flights go from London to Philadelphia every day.
There is 1 airport near Philadelphia: Philadelphia (PHL)

  • How far is London to Philadelphia by plane?

    There are 3538.9 mi between London and Philadelphia. 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 updated daily.

  • 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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?

  • 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
Airline
Rating
Free Cancellation
Price
IberiaPriceFrom $587Free CancellationRating
7.0
2,661 reviews
Search Iberia flights
American AirlinesPriceFrom $592Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $594Free CancellationRating
6.6
6,831 reviews
Search British Airways flights
Aer LingusPriceFrom $605Free CancellationRating
7.1
1,089 reviews
Search Aer Lingus flights
FinnairPriceFrom $617Free CancellationRating
7.7
1,300 reviews
Search Finnair flights
  • Finnair Flights From London to Philadelphia

    Finnair flight deals from London to Philadelphia start from $617 round-trip. Over the 14 Finnair flights for this route in a normal week, average airfare is usually $943 round-trip - but some users have found much cheaper deals with momondo.

  • American Airlines Flights From London to Philadelphia

    Across 10,000 American Airlines reviews on momondo, the average score is 7.2/10. American Airlines flies from London to Philadelphia about 14 times each week, with ticket deals ranging from $592 to $742. Price data is based on momondo searches in the last 72 hours.


Why use momondo?

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

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 Philadelphia from London.

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

momondo does allow users to show only those flights to Philadelphia from London which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for London to Philadelphia 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 London to Philadelphia right now. Can momondo alert me if prices change?

Price alerts on flights to Philadelphia from London 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.


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