Your next trip, last seen at €342
Lowest observedWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
- Lowest observed
- €342, departing 7 Dec 2026 (Last checked: 7 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 9Check live prices for this route
- Airlines seen
- British Airways, Air Canada, Eurowings, SAS
- Reported fastest flight
- 10h 15m
- Non-stop
- Yes
About this route
Explore the fares we observed from London to Philadelphia. Prices move often, so pick your dates to see the latest options.
- Route distance
- 5,700 km
- Reported fastest flight
- 10h 15m
- Airlines seen
- British Airways, Air Canada, Eurowings, SAS
- Alternative airports
- LCY, LGW, LTN, SEN, STN, TTN
Route-level information; individual journeys vary.
Published schedules report non-stop service with British Airways. Check current timetables.
A clearer picture of your fare
Airport to city: straight-line distance
- London City Airport (LCY) → London, city gazetteer reference point (51.5074, -0.1278): ≈ 13 km.
- London Heathrow (LHR) → London, city gazetteer reference point (51.5074, -0.1278): ≈ 23 km.
- London Gatwick (LGW) → London, city gazetteer reference point (51.5074, -0.1278): ≈ 40 km.
- London Luton (LTN) → London, city gazetteer reference point (51.5074, -0.1278): ≈ 44 km.
- London Stansted (STN) → London, city gazetteer reference point (51.5074, -0.1278): ≈ 49 km.
- London Southend Airport (SEN) → London, city gazetteer reference point (51.5074, -0.1278): ≈ 57 km.
- Philadelphia International Airport (PHL) → Philadelphia, city gazetteer reference point (39.9523, -75.1638): ≈ 11 km.
- Trenton Mercer Airport (TTN) → Philadelphia, city gazetteer reference point (39.9523, -75.1638): ≈ 47 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by days before departure
Lowest fare from London to Philadelphia by days until departure (31 to 60 days): €342 (checked 7 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 31 to 60 days | €342 | 6 |
| 61 days or more | €405 | 3 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Frequently asked
How much is a flight from London to Philadelphia?
The lowest fare we have observed is €342, found on 7 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from London to Philadelphia?
In our observations December 2026 is the cheapest month so far, at €342.
Are there direct flights from London to Philadelphia?
Yes. We have seen non-stop flights on this route, flown by British Airways.
Which airlines fly from London to Philadelphia?
These are the carriers we have seen on the route: British Airways, Air Canada, Eurowings, SAS.
How many of the observed London to Philadelphia fares were non-stop?
7 of the 12 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 7 Oct 2026