Insights
Latest deals
Reviews
FAQs

Cheap flights from London to Philadelphia from £209

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 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
From?
To?
Tue 14/5
Tue 21/5

Deals available from 900+ travel sites.

'This year, momondo is the #1 place for airfares on the internet.'
Voted winner of Europe's Best Travel App 2023
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? Create a price alert to track prices.

Easily compare return flights from London to Philadelphia

Below you can see the best fares for your return flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from London to Philadelphia by changing tabs
American Airlines
16 Sept
LHR07:40London Heathrow
13h 40m
1 stop
PHL16:20Philadelphia
23 Sept
PHL13:35Philadelphia
11h 40m
1 stop
LHR06:15London Heathrow
Multiple Airlines
10 Sept
LGW14:00London Gatwick
33h 28m
1 stop
PHL18:28Philadelphia
18 Sept
PHL14:12Philadelphia
14h 48m
1 stop
LGW10:00London Gatwick
Finnair
10 Sept
LHR18:15London Heathrow
20h 35m
1 stop
PHL09:50Philadelphia
24 Sept
PHL18:52Philadelphia
12h 18m
1 stop
LHR12:10London Heathrow
JetBlue
10 Sept
LGW12:10London Gatwick
14h 20m
1 stop
PHL21:30Philadelphia
24 Sept
PHL14:25Philadelphia
11h 25m
1 stop
LGW06:50London Gatwick
Alaska Airlines
10 Sept
LHR11:40London Heathrow
13h 14m
1 stop
PHL19:54Philadelphia
17 Sept
PHL13:26Philadelphia
15h 24m
2 stops
LHR09:50London Heathrow
Iberia
10 Sept
LHR13:00London Heathrow
7h 55m
PHL15:55Philadelphia
17 Sept
PHL13:35Philadelphia
15h 15m
1 stop
LHR09:50London Heathrow

Find the cheapest one-way flights from London to Philadelphia

If you're looking for one-way flights from London to Philadelphia, view some of our deals below provided by British Airways, Finnair and WestJet
Multiple Airlines
1 Oct
LGW21:45London Gatwick
41h 02m
2 stops
PHL09:47Philadelphia
British Airways
27 Aug
LHR21:00London Heathrow
24h 15m
1 stop
PHL16:15Philadelphia
WestJet
11 Jun
LHR14:10London Heathrow
26h 54m
2 stops
PHL12:04Philadelphia

Search last-minute flights to Philadelphia from London

Find and compare return flight prices for your last-minute flight from London to Philadelphia
Multiple Airlines
16 May
LGW10:00London Gatwick
19h 38m
1 stop
PHL00:38Philadelphia
17 Sept
PHL05:30Philadelphia
20h 30m
1 stop
LGW07:00London Gatwick
Lufthansa
16 May
LHR08:30London Heathrow
12h 30m
1 stop
PHL16:00Philadelphia
25 May
PHL15:59Philadelphia
23h 41m
1 stop
LHR20:40London Heathrow
American Airlines
16 May
LHR09:45London Heathrow
7h 45m
PHL12:30Philadelphia
9 Jun
PHL20:57Philadelphia
28h 18m
1 stop
LHR06:15London Heathrow
Delta
16 May
LHR09:55London Heathrow
16h 52m
2 stops
PHL21:47Philadelphia
4 Feb
PHL15:45Philadelphia
16h 45m
1 stop
LHR13:30London Heathrow
Finnair
16 May
LHR09:45London Heathrow
7h 45m
PHL12:30Philadelphia
25 May
PHL13:36Philadelphia
11h 54m
1 stop
LHR06:30London Heathrow
British Airways
17 May
LHR13:00London Heathrow
7h 45m
PHL15:45Philadelphia
19 May
PHL18:30Philadelphia
7h 10m
LHR06:40London Heathrow

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
KLMPriceFrom £336Free CancellationRating
7.8
1,590 reviews
Search KLM flights
JetBluePriceFrom £371Free CancellationRating
7.6
4,521 reviews
Search JetBlue flights
Air CanadaPriceFrom £388Free CancellationRating
7.0
6,926 reviews
Search Air Canada flights
American AirlinesPriceFrom £423Free CancellationRating
7.3
14,665 reviews
Search American Airlines flights
British AirwaysPriceFrom £433Free CancellationRating
6.8
6,867 reviews
Search British Airways flights
Austrian AirlinesPriceFrom £438Free CancellationRating
7.6
1,062 reviews
Search Austrian Airlines flights
Aer LingusPriceFrom £440Free CancellationRating
7.2
1,338 reviews
Search Aer Lingus flights
Virgin AtlanticPriceFrom £445Free CancellationRating
7.6
738 reviews
Search Virgin Atlantic flights
FinnairPriceFrom £450Free CancellationRating
7.7
1,378 reviews
Search Finnair flights
Alaska AirlinesPriceFrom £469Free CancellationRating
8.0
9,142 reviews
Search Alaska Airlines flights
  • Finnair Flights From London to Philadelphia

    Finnair flies from London to Philadelphia around 14 times per week, with 1,378 momondo users rating the airline 7.7/10. The cheapest Finnair deal from London to Philadelphia in the last 72 hours was £562 (round-trip), much lower than the average airfare cost of £755 for Finnair flights on this route.

  • American Airlines Flights From London to Philadelphia

    Another popular option for London to Philadelphia flights is American Airlines (7.3/10, 14,665 ratings). American Airlines flies from London to Philadelphia around 14 times per week, with deals starting from £528 round-trip and rising to an average price of around £736.


Finnair flights from London to Philadelphia

Our best Finnair deals on London to Philadelphia flight tickets
Finnair
10 Sept
LHR18:15London Heathrow
20h 35m
1 stop
PHL09:50Philadelphia
24 Sept
PHL18:52Philadelphia
12h 18m
1 stop
LHR12:10London Heathrow
Finnair
10 Sept
LGW15:05London Gatwick
22h 30m
2 stops
PHL08:35Philadelphia
24 Sept
PHL20:45Philadelphia
30h 25m
2 stops
LGW08:10London Gatwick
Finnair
10 Sept
LGW14:30London Gatwick
24h 20m
1 stop
PHL09:50Philadelphia
24 Sept
PHL20:45Philadelphia
30h 25m
2 stops
LGW08:10London Gatwick

JetBlue flights from London to Philadelphia

Our best JetBlue deals on London to Philadelphia flight tickets
JetBlue
10 Sept
LGW12:10London Gatwick
14h 20m
1 stop
PHL21:30Philadelphia
24 Sept
PHL14:25Philadelphia
11h 25m
1 stop
LGW06:50London Gatwick
JetBlue
7 Jun
LGW12:10London Gatwick
31h 50m
1 stop
PHL15:00Philadelphia
10 Jun
PHL15:45Philadelphia
10h 45m
1 stop
LGW07:30London Gatwick
JetBlue
17 Jun
LGW12:10London Gatwick
15h 16m
1 stop
PHL22:26Philadelphia
27 Jun
PHL09:06Philadelphia
16h 59m
1 stop
LGW07:05London Gatwick

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 from London to Philadelphia?

November. The cheapest time of year to fly to Philadelphia from London is November. The most expensive is July.

What is the cheapest day to depart London for Philadelphia?

Tuesday. The cheapest day of the week is usually Tuesday. The most expensive is usually Sunday.

When is the cheapest time to fly from London to Philadelphia?

In the afternoon. London to Philadelphia flights are approximately 10% more expensive at midday than in the afternoon

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

KLM. Aer Lingus, Air Canada, and British Airways are the most popular carriers operating from London to Philadelphia

What is the cheapest London to Philadelphia flight route?

London Gatwick - Philadelphia. Fly from London Gatwick to Philadelphia for the best London - Philadelphia flight prices

How far in advance should you book London to Philadelphia flights?

28 days before. The cheapest time to buy a flight from London to Philadelphia is approximately 28 days to departure

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

12 flights are operational weekly from London to Philadelphia as of May 2024. The most popular departure time for this route is 12:00, with 64% of flights per day taking off in the afternoon.

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

84 flights are operational weekly from London to Philadelphia as of May 2024. The most popular departure day for this route is Monday, with 14% of flights per week taking off on this day.

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

There are 2 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 7% on your flight if you consider stops on a London to Philadelphia flight.

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

£209

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 £209. The best return flight deal from London to Philadelphia found on momondo in the last 72 hours is £422.
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?

    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?

  • 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.


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.


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.
1 adult
From?
To?
Tue 14/5
Tue 21/5
Email me momondo's favourite deals

Find better results for your stay in the United States