For quick access to Center City, SEPTA's Airport Line is efficient and operates from 5:00 a.m. to midnight.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | Gurufare 3 stars |
Round-trip from | $549 (Mytrip) |
One-way from | $187 (Norse) |
Popular in | June |
Cheapest in | September |
Average price | $680 |
Good round-trip deal | $747 or less |
Good one-way deal | $477 or less |
Fly from
Fly to
Route
Depart
Return
Price
PhiladelphiaLondon
PHL - STN
PHLSTN
Philadelphia
Wed 11/26
3:30 pm-9:05 pm
3 stops24h 35m
London Stansted
Tue 12/2
6:45 pm-2:50 pm
3 stops25h 05m
PhiladelphiaLondon
PHL - STN
PHLSTN
Philadelphia
Wed 12/3
3:30 pm-9:05 pm
3 stops24h 35m
London Stansted
Sat 12/6
5:00 pm-2:50 pm
3 stops26h 50m
PhiladelphiaLondon
PHL - STN
PHLSTN
Philadelphia
Fri 11/14
5:30 pm-4:35 pm
1 stop18h 05m
London Stansted
Mon 11/17
10:15 am-4:00 pm
1 stop10h 45m
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
Tue 3/3
11:30 am-9:20 am
2 stops16h 50m
London Heathrow
Tue 3/10
6:40 am-9:17 pm
2 stops18h 37m
PhiladelphiaLondon
PHL - LGW
PHLLGW
Philadelphia
Mon 12/8
5:30 am-10:00 am
1 stop23h 30m
London Gatwick
Fri 12/12
2:00 pm-11:34 pm
1 stop14h 34m
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
Thu 2/5
11:30 am-4:25 pm
3 stops23h 55m
London Heathrow
Mon 2/9
6:40 am-12:22 am
2 stops22h 42m
PhiladelphiaLondon
PHL - LTN
PHLLTN
Philadelphia
Thu 1/15
9:20 am-4:00 pm
2 stops25h 40m
London Luton
Mon 1/19
7:05 pm-2:47 pm
3 stops24h 42m
PhiladelphiaLondon
PHL - STN
PHLSTN
Philadelphia
Fri 1/16
4:35 pm-1:20 pm
2 stops15h 45m
London Stansted
Thu 1/22
4:30 pm-2:47 pm
3 stops27h 17m
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
Sun 12/7
3:30 pm-7:10 am
1 stop10h 40m
London Heathrow
Tue 12/16
6:30 am-4:05 pm
1 stop14h 35m
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
Sun 11/9
10:34 am-10:50 am
1 stop19h 16m
London Heathrow
Tue 11/18
8:30 am-4:05 pm
1 stop12h 35m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
Booking 88 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, February is the cheapest month in which you can book a flight from Philadelphia to London (average of $241). Flying from Philadelphia to London in June is currently the most expensive (average of $534). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
A simple way to save on the total cost of your ticket is to fly from Philadelphia to London at noon. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the afternoon.
Travelers seeking maximum savings on their Philadelphia to London flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from PHL to LON are scheduled on a Monday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).
Dublin (DUB) – chosen by Cheapflights users on 90% of 1-stop itineraries from Philadelphia to London on Cheapflights.
Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $687.
Flights via Dublin (DUB) have the shortest average one-way travel time for 1-stop routes: 9h 35m.
Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 38m.
Boarding
Overall
Crew
Food
Entertainment
Comfort
Reviews
Anonymous,May 2025
FRA - DFW
Boarding
Overall
Crew
Food
Entertainment
Comfort
Reviews
Anonymous,May 2025
FRA - DFW
Boarding
Overall
Crew
Food
Entertainment
Comfort
Reviews
Anonymous,May 2025
FRA - DFW
Boarding
Overall
Crew
Food
Entertainment
Comfort
Reviews
Anonymous,May 2025
FRA - DFW
Boarding
Overall
Crew
Food
Entertainment
Comfort
Reviews
Anonymous,May 2025
FRA - DFW
Boarding
Overall
Crew
Food
Entertainment
Comfort
Reviews
Anonymous,May 2025
FRA - DFW
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$505 | Average$842 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$507 | Average$638 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$509 | Average$733 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$514 | Average$778 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$523 | Average$800 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$560 | Average$936 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$587 | Average$783 | FlexibilityNo cancel fee | On-time77% |