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 | $607 (Mytrip) |
One-way from | $206 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $898 |
Good round-trip deal | $726 or less |
Good one-way deal | $448 or less |
Fly from
Fly to
Route
Depart
Return
Price
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
vie. 1/23
6:02 am-12:55 pm
3 stops25h 53m
London Heathrow
mar. 1/27
6:40 am-9:16 pm
2 stops19h 36m
PhiladelphiaLondon
PHL - STN
PHLSTN
Philadelphia
dom. 2/1
3:30 pm-5:30 pm
3 stops21h 00m
London Stansted
sáb. 2/7
9:25 pm-10:46 pm
3 stops30h 21m
PhiladelphiaLondon
PHL - LTN
PHLLTN
Philadelphia
lun. 1/12
3:30 pm-8:10 pm
2 stops23h 40m
London Luton
mar. 1/20
8:50 pm-2:47 pm
3 stops22h 57m
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
lun. 1/12
6:02 am-9:20 am
2 stops22h 18m
London Heathrow
mar. 1/20
6:40 am-9:16 pm
3 stops19h 36m
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
mar. 3/3
11:08 am-5:40 pm
2 stops25h 32m
London Heathrow
sáb. 3/7
6:40 am-12:26 am
2 stops22h 46m
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
sáb. 1/17
12:11 pm-5:40 pm
2 stops24h 29m
London Heathrow
sáb. 1/24
6:40 am-12:21 am
2 stops22h 41m
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
mar. 3/10
11:16 am-6:30 pm
2 stops27h 14m
London Heathrow
jue. 3/19
7:05 am-10:54 pm
3 stops19h 49m
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
mar. 3/3
6:00 am-4:00 pm
2 stops29h 00m
London Heathrow
mar. 3/10
7:05 am-9:23 pm
3 stops18h 18m
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
mié. 3/11
3:02 pm-6:55 am
1 stop11h 53m
London Heathrow
mié. 3/25
9:20 am-9:47 pm
1 stop16h 27m
PhiladelphiaLondon
PHL - LHR
PHLLHR
Philadelphia
mar. 3/10
3:02 pm-6:55 am
1 stop11h 53m
London Heathrow
sáb. 3/14
9:20 am-9:47 pm
1 stop16h 27m
| 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 Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
Booking 54 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, November is the cheapest month in which you can book a flight from Philadelphia to London (average of $282). 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 Monday, which is when the least amount of flights are scheduled (10 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.
Comfort
Boarding
Food
Crew
Entertainment
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Reviews
Anonymous,May 2025
FRA - DFW
Comfort
Boarding
Food
Crew
Entertainment
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Reviews
Anonymous,May 2025
FRA - DFW
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Anonymous,May 2025
FRA - DFW
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Anonymous,May 2025
FRA - DFW
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Anonymous,May 2025
FRA - DFW
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Anonymous,May 2025
FRA - DFW
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$503 | Average$638 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$505 | Average$834 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$508 | Average$729 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$514 | Average$778 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$522 | Average$792 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$560 | Average$936 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$578 | Average$785 | FlexibilityNo cancel fee | On-time77% |