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Cheap flights from Philadelphia to London Heathrow Airport from $217

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 Heathrow Airport departing on 1/14. 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 Philadelphia to London

Cheap round-trip flights

These are some of the best round-trip flight deals from Philadelphia to London 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 Philadelphia to London.

Cheap last minute flights

Planning a quick getaway from Philadelphia to London? 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 London, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Philadelphia to London

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

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
3:15 pm - 5:55 amPHL-LHR
9h 40m1 stop
8:25 am - 4:43 pmLHR-PHL
13h 18m1 stop
$476JetBlue
Find Deal
Tue, Jan 21 - Wed, Jan 29
3:15 pm - 5:55 amPHL-LHR
9h 40m1 stop
8:25 am - 4:43 pmLHR-PHL
13h 18m1 stop
$502JetBlue
Find Deal
Mon, Jan 27 - Tue, Feb 4
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
10:40 am - 4:40 pmLHR-PHL
11h 00m1 stop
$689British Airways
Find Deal
Tue, Feb 4 - Wed, Feb 12
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
6:30 am - 4:40 pmLHR-PHL
15h 10m1 stop
$696British Airways
Find Deal
Mon, Jan 20 - Tue, Feb 4
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
8:10 am - 3:35 pmLHR-PHL
12h 25m1 stop
$708Iberia
Find Deal
Tue, Jan 21 - Tue, Jan 28
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
8:50 am - 4:40 pmLHR-PHL
12h 50m1 stop
$717American Airlines
Find Deal
Tue, Jan 14 - Tue, Jan 21
7:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
7:50 am - 5:35 pmLHR-PHL
13h 45m1 stop
$718American Airlines
Find Deal
Tue, Mar 11 - Thu, Mar 27
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
$720Iberia
Find Deal
Wed, Feb 12 - Fri, Feb 21
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
$739Finnair
Find Deal
Tue, Feb 25 - Tue, Mar 4
7:35 pm - 7:45 amPHL-LHR
7h 10mnonstop
8:15 pm - 1:45 pmLHR-PHL
22h 30m1 stop
$741Finnair
Find Deal
Wed, Apr 23 - Mon, Apr 28
6:00 am - 2:25 pmPHL-LHR
27h 25m2 stops
Tue, Jan 14
11:10 am - 5:55 amPHL-LHR
13h 45m1 stop
$233JetBlue
Find Deal
Wed, Jan 15
6:00 am - 2:25 pmPHL-LHR
27h 25m2 stops
Thu, Jan 16
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$443British Airways
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Wed, Feb 5
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
$448British Airways
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Sun, Jan 19
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
$449Finnair
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Mon, Feb 10
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$498Finnair
Find Deal
Fri, Jan 17
6:35 pm - 10:20 amPHL-LHR
10h 45m1 stop
$501American Airlines
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Thu, Apr 17
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
$803American Airlines
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Mon, Dec 30
9:15 pm - 9:20 amPHL-LHR
7h 05mnonstop
$951Iberia
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Tue, Dec 24
6:18 pm - 5:55 amPHL-LHR
30h 37m1 stop
8:25 am - 7:07 pmLHR-PHL
15h 42m1 stop
$1,084JetBlue
Find Deal
Thu, Dec 19 - Fri, Jan 17
8:15 am - 5:55 amPHL-LHR
16h 40m1 stop
8:25 am - 5:33 pmLHR-PHL
14h 08m1 stop
$1,086JetBlue
Find Deal
Fri, Dec 20 - Wed, Dec 25
1:40 pm - 8:15 amPHL-LHR
13h 35m1 stop
1:10 pm - 4:20 pmLHR-PHL
8h 10mnonstop
$1,338British Airways
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Mon, Dec 23 - Tue, Dec 31
1:40 pm - 8:15 amPHL-LHR
13h 35m1 stop
2:30 pm - 12:59 amLHR-PHL
15h 29m1 stop
$1,398British Airways
Find Deal
Mon, Dec 23 - Tue, Dec 31
7:10 pm - 10:10 amPHL-LHR
10h 00m1 stop
8:15 am - 3:30 pmLHR-PHL
12h 15m1 stop
$1,655American Airlines
Find Deal
Sun, Dec 22 - Thu, Jan 2
6:55 pm - 8:25 amPHL-LHR
32h 30m2 stops
11:55 am - 7:56 pmLHR-PHL
13h 01m1 stop
$1,705Iberia
Find Deal
Mon, Dec 23 - Tue, Dec 31
9:10 pm - 1:25 pmPHL-LHR
11h 15m1 stop
8:15 am - 3:30 pmLHR-PHL
12h 15m1 stop
$1,898American Airlines
Find Deal
Mon, Dec 23 - Sat, Jan 4
9:15 pm - 9:20 amPHL-LHR
7h 05mnonstop
10:35 am - 7:29 pmLHR-PHL
13h 54m1 stop
$1,949Iberia
Find Deal
Mon, Dec 23 - Thu, Jan 2
9:10 pm - 4:50 pmPHL-LHR
14h 40m1 stop
8:50 am - 5:33 pmLHR-PHL
13h 43m2 stops
$2,161Aer Lingus
Find Deal
Thu, Dec 19 - Sun, Dec 22
5:30 pm - 8:05 amPHL-LHR
9h 35m1 stop
7:50 am - 7:07 pmLHR-PHL
16h 17m2 stops
$2,210Aer Lingus
Find Deal
Thu, Dec 19 - Fri, Jan 17
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
1:10 pm - 4:20 pmLHR-PHL
8h 10mnonstop
$719British Airways
Find Deal
Tue, Feb 4 - Tue, Feb 11
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
$720Iberia
Find Deal
Wed, Feb 12 - Fri, Feb 21
10:20 pm - 9:20 amPHL-LHR
7h 00mnonstop
2:45 pm - 6:55 pmLHR-PHL
8h 10mnonstop
$721British Airways
Find Deal
Tue, Mar 11 - Thu, Mar 27
10:20 pm - 9:20 amPHL-LHR
7h 00mnonstop
9:45 am - 12:30 pmLHR-PHL
7h 45mnonstop
$722British Airways
Find Deal
Sun, Mar 23 - Fri, Apr 4
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
10:15 am - 1:30 pmLHR-PHL
8h 15mnonstop
$727British Airways
Find Deal
Mon, Jan 20 - Tue, Feb 4
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
1:10 pm - 4:20 pmLHR-PHL
8h 10mnonstop
$734Iberia
Find Deal
Tue, Jan 14 - Tue, Jan 21
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
10:15 am - 1:20 pmLHR-PHL
8h 05mnonstop
$739Finnair
Find Deal
Tue, Feb 25 - Tue, Mar 4
6:40 pm - 6:35 amPHL-LHR
6h 55mnonstop
1:10 pm - 4:20 pmLHR-PHL
8h 10mnonstop
$741Finnair
Find Deal
Tue, Jan 14 - Tue, Jan 21
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
1:10 pm - 4:20 pmLHR-PHL
8h 10mnonstop
$749American Airlines
Find Deal
Tue, Jan 14 - Tue, Jan 21
9:21 pm - 9:20 amPHL-LHR
6h 59mnonstop
10:15 am - 1:30 pmLHR-PHL
8h 15mnonstop
$799American Airlines
Find Deal
Thu, Jan 16 - Thu, Jan 23

JetBlue flights from Philadelphia to London Heathrow Airport

Our best JetBlue deals on Philadelphia to London Heathrow Airport flight tickets
JetBlue
Jan 21
PHL3:15 pmPhiladelphia
9h 40m
1 stop
LHR5:55 amLondon Heathrow
Jan 29
LHR8:25 amLondon Heathrow
13h 18m
1 stop
PHL4:43 pmPhiladelphia
JetBlue
Jan 27
PHL3:15 pmPhiladelphia
9h 40m
1 stop
LHR5:55 amLondon Heathrow
Feb 4
LHR8:25 amLondon Heathrow
13h 18m
1 stop
PHL4:43 pmPhiladelphia
JetBlue
Jan 13
PHL3:15 pmPhiladelphia
9h 40m
1 stop
LHR5:55 amLondon Heathrow
Jan 23
LHR8:25 amLondon Heathrow
13h 18m
1 stop
PHL4:43 pmPhiladelphia

British Airways flights from Philadelphia to London Heathrow Airport

Our best British Airways deals on Philadelphia to London Heathrow Airport flight tickets
British Airways
Feb 4
PHL6:40 pmPhiladelphia
6h 55m
LHR6:35 amLondon Heathrow
Feb 12
LHR10:40 amLondon Heathrow
11h 00m
1 stop
PHL4:40 pmPhiladelphia
British Airways
Jan 20
PHL9:21 pmPhiladelphia
6h 59m
LHR9:20 amLondon Heathrow
Feb 4
LHR6:30 amLondon Heathrow
15h 10m
1 stop
PHL4:40 pmPhiladelphia
British Airways
Feb 12
PHL6:40 pmPhiladelphia
6h 55m
LHR6:35 amLondon Heathrow
Feb 19
LHR6:30 amLondon Heathrow
15h 05m
1 stop
PHL4:35 pmPhiladelphia

See travel insights to London from

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

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 Heathrow Airport?

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from Philadelphia, with most prices found around $725. If you’re not able to fly to London Heathrow Airport in October, then January is your next best option. Flight prices from Philadelphia to London Heathrow Airport during January average around $733.

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

Our data shows that Monday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $811. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $942.

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

According to our data, the cheapest time of day to fly to London Heathrow Airport is at noon. momondo users have found flights departing from Philadelphia to London Heathrow Airport at noon for as low as $786. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $874.

What is the cheapest Philadelphia to London Heathrow flight route?

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

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

We recommend purchasing flights from Philadelphia to London Heathrow Airport 56 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to London Heathrow Airport for $865. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $678.

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

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

You could potentially save up to 48% on your flight if you consider stops on a Philadelphia to London Heathrow Airport flight.

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

As of December 2024, prices for Philadelphia to London Heathrow Airport flights are approximately 1% cheaper when compared to flights at the same time last year.

When to book flights from Philadelphia to London Heathrow Airport

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

Cheap Philadelphia to London Heathrow Airport (PHL to LHR) flight deals and tips

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

Best Price Found

$217

Fastest flight time

6h 55m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Philadelphia in the past 72 hours is $217. The best round-trip flight deal from Philadelphia to London Heathrow Airport found on momondo in the last 72 hours is $476.
The fastest flight from Philadelphia to London Heathrow Airport takes 6h 55m
Direct flights go from Philadelphia to London Heathrow Airport every day.

  • How far is Philadelphia to London Heathrow by plane?

    Philadelphia and London Heathrow are 3526.0 mi apart from one another. Flights usually cover this in 6h 55m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Philadelphia Airport to London Heathrow Airport refresh daily.

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

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

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow 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 London Heathrow 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 Philadelphia to London Heathrow Airport?

  • What is the most popular airline from Philadelphia to London Heathrow Airport?


Best airlines flying from Philadelphia to London Heathrow Airport

Compare and see reviews for airlines that fly from Philadelphia to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom $514Free CancellationRating
7.5
668 reviews
Search Virgin Atlantic flights
LufthansaPriceFrom $525Free CancellationRating
6.8
7,091 reviews
Search Lufthansa flights
Air CanadaPriceFrom $529Free CancellationRating
7.0
8,382 reviews
Search Air Canada flights
JetBluePriceFrom $552Free CancellationRating
7.4
3,279 reviews
Search JetBlue flights
American AirlinesPriceFrom $609Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $618Free CancellationRating
7.0
2,656 reviews
Search Iberia flights
DeltaPriceFrom $625Free CancellationRating
8.0
8,604 reviews
Search Delta flights
FinnairPriceFrom $626Free CancellationRating
7.7
1,285 reviews
Search Finnair flights
Aer LingusPriceFrom $629Free CancellationRating
7.1
1,073 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $636Free CancellationRating
6.6
6,820 reviews
Search British Airways flights
  • Finnair Flights From Philadelphia to London Heathrow Airport

    Finnair flies from Philadelphia to London Heathrow Airport around 9 times per week, with 1,285 momondo users rating the airline 7.7/10. The cheapest Finnair deal from Philadelphia to London Heathrow Airport in the last 72 hours was $626 (round-trip), much lower than the average airfare cost of $904 for Finnair flights on this route.

  • American Airlines Flights From Philadelphia to London Heathrow Airport

    The best American Airlines deal for Philadelphia to London Heathrow Airport flight tickets found on momondo in the last 72 hours was $609, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $896 round-trip. American Airlines operates 9 flights out of Philadelphia into London Heathrow Airport in an average week, so prices vary by time and availability. 10,000 American Airlines reviews by users on momondo have scored the airline at 7.2/10.


Why use momondo?

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

It is quick and easy to find Philadelphia to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Flights from Philadelphia to London 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 Philadelphia to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Philadelphia.

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

If you are not ready to book a flight from Philadelphia to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.


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