Find Deals on Flights from Philadelphia to United Kingdom

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Philadelphia to United Kingdom

(Round-trip)
Depart: Fri May 5 2017 Return: Sat May 6 2017 Trip spans 2 days
Major Airline
Major Airline
PHL
LHR
12h 25m
1 stop
LHR
PHL
28h 00m
1 stop
Depart: Tue Sep 5 2017 Return: Tue Sep 12 2017 Trip spans 8 days
Icelandair
Icelandair
PHL
LGW
10h 00m
1 stop
LGW
PHL
11h 05m
1 stop
Depart: Wed Aug 23 2017 Return: Thu Aug 31 2017 Trip spans 9 days
British Airways
British Airways
PHL
LGW
11h 50m
1 stop
LGW
PHL
11h 15m
1 stop
Depart: Wed Aug 23 2017 Return: Wed Sep 6 2017 Trip spans 15 days
Virgin Atlantic
Virgin Atlantic
PHL
LHR
7h 23m
nonstop
LHR
PHL
8h 27m
nonstop
Depart: Thu Sep 14 2017 Return: Wed Sep 27 2017 Trip spans 14 days
Finnair
Finnair
PHL
LHR
7h 20m
nonstop
LHR
PHL
21h 25m
1 stop
Depart: Tue Apr 25 2017 Return: Fri May 5 2017 Trip spans 11 days
Iberia
Iberia
PHL
LGW
20h 40m
1 stop
LGW
PHL
20h 15m
1 stop
Depart: Mon Aug 28 2017 Return: Tue Sep 5 2017 Trip spans 9 days
Lufthansa
Lufthansa
PHL
LCY
17h 35m
1 stop
LCY
PHL
13h 15m
1 stop
Depart: Sun Aug 20 2017 Return: Sun Aug 27 2017 Trip spans 8 days
American Airlines
American Airlines
PHL
LGW
11h 20m
1 stop
LGW
PHL
13h 25m
1 stop
Depart: Sat Jun 3 2017 Return: Sat Jun 10 2017 Trip spans 8 days
Thomas Cook Airlines
Thomas Cook Airlines
PHL
MAN
15h 23m
1 stop
MAN
PHL
11h 58m
1 stop
Depart: Tue May 2 2017 Return: Tue May 9 2017 Trip spans 8 days
KLM
KLM
PHL
SOU
18h 08m
2 stops
SOU
PHL
15h 09m
2 stops
Depart: Mon May 22 2017 Return: Mon May 29 2017 Trip spans 8 days
United
United
PHL
EDI
12h 15m
2 stops
EDI
PHL
11h 52m
1 stop
Depart: Fri Jul 7 2017 Return: Sat Jul 15 2017 Trip spans 9 days
Air Canada
Air Canada
PHL
BHD
23h 00m
2 stops
BHD
PHL
35h 33m
2 stops
Depart: Sat Aug 19 2017 Return: Tue Sep 5 2017 Trip spans 18 days
Air France
Air France
PHL
SOU
18h 57m
1 stop
SOU
PHL
14h 30m
1 stop
Depart: Fri Mar 31 2017 Return: Tue Apr 25 2017 Trip spans 26 days
TAP Portugal
TAP Portugal
PHL
LHR
30h 30m
2 stops
LHR
PHL
16h 32m
2 stops
Depart: Thu Mar 30 2017 Return: Sun Apr 2 2017 Trip spans 4 days
$1040
Select
Aer Lingus
Aer Lingus
PHL
LHR
26h 53m
2 stops
LHR
PHL
25h 22m
2 stops
Depart: Wed Sep 6 2017 Return: Tue Sep 12 2017 Trip spans 7 days
Icelandair
Icelandair
PHL
LGW
10h 10m
1 stop
LGW
PHL
11h 05m
1 stop
Depart: Wed Sep 6 2017 Return: Tue Sep 12 2017 Trip spans 7 days
Major Airline
Major Airline
PHL
LHR
10h 35m
1 stop
LHR
PHL
12h 05m
1 stop
Depart: Sun Aug 20 2017 Return: Sun Aug 27 2017 Trip spans 8 days
$1055
Select
SWISS
SWISS
PHL
LCY
19h 55m
2 stops
LCY
PHL
50h 35m
2 stops
Depart: Mon Sep 4 2017 Return: Sat Sep 16 2017 Trip spans 13 days
British Airways
British Airways
PHL
LHR
7h 05m
nonstop
LHR
PHL
7h 45m
nonstop
Depart: Thu Apr 27 2017 Return: Fri May 5 2017 Trip spans 9 days
Virgin Atlantic
Virgin Atlantic
PHL
LHR
7h 36m
nonstop
LHR
PHL
8h 23m
nonstop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Philadelphia
$507
Destination

Belfast
$766
Southampton
$703
London
only $507
only $627
only $518
Manchester
$676
Edinburgh
$711