Flight Routes from Philadelphia to London

Trip type

Our cheapest offers for flights from Philadelphia to London

Here you can compare cheap flights from Philadelphia (PHL) to London (LON) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to London. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Philadelphia
London
Outbound
08/11/26
direct
AY3866
07h 10min
Return
08/18/26
1 Stopover (EDI)
AY5943, AY3853
22h 35min
Finnair
$833
found yesterday
Best option
Philadelphia
London
Outbound
08/11/26
direct
AY5466
07h 05min
Return
08/18/26
direct
AY5467
07h 55min
Finnair
$889
found yesterday
Philadelphia
London
Outbound
06/15/26
1 Stopover (DUB)
EI7004, EI0156
10h 30min
Return
07/14/26
1 Stopover (DUB)
EI0183, EI7159
23h 55min
Aer Lingus Irish Airlines
$1,279
found yesterday
Philadelphia
London
Outbound
08/11/26
direct
AY5466
07h 05min
Return
08/18/26
1 Stopover (EDI)
AY5943, AY3853
22h 35min
Finnair ?
$881
found yesterday
Philadelphia
London
Outbound
08/11/26
direct
AY5466
07h 05min
Return
08/18/26
direct
AY5467
07h 55min
Finnair
$891
found yesterday
Philadelphia
London
Outbound
08/11/26
1 Stopover (YUL)
AC8860, AC0866
10h 05min
Return
08/18/26
1 Stopover (FRA)
LH0919, LH4272
25h 35min
Air Canada ?
$897
found yesterday
Philadelphia
London
Outbound
08/11/26
2 Stopovers (FRA, WAW)
UA9657, UA8890, BA0845
21h 15min
Return
08/18/26
2 Stopovers (HAM, DUB)
BA0970, EI0393, EI0115
27h 40min
United Airlines, British Airways ?
$902
found yesterday
Philadelphia
London
Outbound
08/11/26
direct
IB4664
07h 00min
Return
08/18/26
1 Stopover (MAD)
IB0712, IB4675
13h 20min
Iberia
$908
found yesterday
Philadelphia
London
Outbound
08/11/26
direct
BA1587
07h 00min
Return
08/18/26
direct
BA0067
07h 55min
British Airways ?
$939
found yesterday
Philadelphia
London
Outbound
08/11/26
1 Stopover (ORD)
UA2784, UA0929
12h 14min
Return
08/18/26
2 Stopovers (BRU, YUL)
AC6345, AC0833, AC8859
25h 59min
United Airlines ?
$982
found yesterday
Prices based on recent searches, subject to last-minute changes
Page 1 / 3

Tips and tricks to help you find cheap flights from Philadelphia to London

Favorite airline: Aer Lingus
67 % of travelers choose to book flights on this route with Aer Lingus, United Airlines and British Airways.
Aer Lingus
26 %
United Airlines
25 %
British Airways
16 %
Direct flights are cheaper
Flights with a stopover are on average $21.00 more expensive than direct flights.
non stop flight
1 stop
2 stops
07h 05min
29h 10min
31h 12min
$578
$599
$602
Favourite connection: via Dublin
35 % of booked tickets on this route are for flights with a transfer in Dublin.
Route
bookings
1 stopover Dublin
10h 35min, from $719
35 %
1 stopover Montréal-Pierre Elliott Trudeau International Airport
09h 50min, from $678
25 %
Direct flights
07h 05min, from $578
20 %

Important flight information

Flight information: Philadelphia - London

Roundtrip from $832.43
Flight duration min. 07:00 / max. 07:25
Return flight duration min. 08:10/ max. 08:45
Distance 5715 km
Flights per week 24
Departure airport Airport Philadelphia International Airport, PA (PHL)
Arrival airport Airport London, all Airports (LON)
Destination country Flights to United Kingdom
Alternative flights to London
Flight destinations with a similar price