Find Cheap 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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Book cheap flights from Philadelphia to United Kingdom

(Round-trip)
Depart: Mon Aug 7 2017 Return: Mon Aug 28 2017 Trip spans 22 days
Virgin Atlantic
Virgin Atlantic
PHL
LHR
7h 23m
nonstop
LHR
PHL
8h 15m
nonstop
Depart: Fri Nov 10 2017 Return: Sun Nov 12 2017 Trip spans 3 days
British Airways
British Airways
PHL
LHR
19h 55m
1 stop
LHR
PHL
10h 40m
1 stop
Depart: Sun Aug 6 2017 Return: Wed Aug 30 2017 Trip spans 25 days
Major Airline
Major Airline
PHL
LGW
11h 05m
1 stop
LGW
PHL
11h 15m
1 stop
Depart: Sat Sep 9 2017 Return: Sat Sep 16 2017 Trip spans 8 days
Icelandair
Icelandair
PHL
LGW
10h 10m
1 stop
LGW
PHL
11h 05m
1 stop
Depart: Tue May 30 2017 Return: Mon Jun 5 2017 Trip spans 7 days
Iberia
Iberia
PHL
LHR
7h 25m
nonstop
LHR
PHL
26h 05m
1 stop
Depart: Fri Sep 22 2017 Return: Sun Oct 1 2017 Trip spans 10 days
Air Canada
Air Canada
PHL
LHR
10h 35m
1 stop
LHR
PHL
19h 15m
1 stop
Depart: Sun Aug 6 2017 Return: Tue Aug 22 2017 Trip spans 17 days
Air France
Air France
PHL
SOU
18h 55m
1 stop
SOU
PHL
14h 30m
1 stop
Depart: Thu Nov 30 2017 Return: Thu Dec 7 2017 Trip spans 8 days
KLM
KLM
PHL
SOU
14h 55m
2 stops
SOU
PHL
14h 53m
2 stops
Depart: Tue Aug 15 2017 Return: Tue Aug 22 2017 Trip spans 8 days
Lufthansa
Lufthansa
PHL
LCY
20h 00m
1 stop
LCY
PHL
11h 50m
1 stop
Depart: Tue Aug 22 2017 Return: Mon Sep 4 2017 Trip spans 14 days
SWISS
SWISS
PHL
LCY
20h 55m
2 stops
LCY
PHL
24h 50m
2 stops
Depart: Tue Nov 28 2017 Return: Wed Dec 6 2017 Trip spans 9 days
Finnair
Finnair
PHL
EDI
12h 35m
1 stop
EDI
PHL
11h 40m
1 stop
Depart: Fri Jul 14 2017 Return: Wed Jul 19 2017 Trip spans 6 days
Delta
Delta
PHL
BHX
14h 08m
1 stop
BHX
PHL
18h 46m
2 stops
Depart: Fri Jun 16 2017 Return: Mon Jun 19 2017 Trip spans 4 days
United
United
PHL
BHX
16h 00m
2 stops
BHX
PHL
19h 15m
2 stops
Depart: Fri Aug 18 2017 Return: Thu Aug 31 2017 Trip spans 14 days
Virgin Atlantic
Virgin Atlantic
PHL
LHR
7h 23m
nonstop
LHR
PHL
8h 15m
nonstop
Depart: Fri Nov 10 2017 Return: Fri Nov 17 2017 Trip spans 8 days
British Airways
British Airways
PHL
LGW
19h 00m
1 stop
LGW
PHL
26h 25m
1 stop
Depart: Thu Nov 30 2017 Return: Thu Dec 7 2017 Trip spans 8 days
British Airways
British Airways
PHL
LGW
13h 00m
1 stop
LGW
PHL
12h 50m
1 stop
Depart: Tue Aug 22 2017 Return: Sat Sep 2 2017 Trip spans 12 days
Major Airline
Major Airline
PHL
LGW
12h 40m
2 stops
LGW
PHL
33h 09m
2 stops
Depart: Tue Aug 15 2017 Return: Tue Aug 22 2017 Trip spans 8 days
Virgin Atlantic
Virgin Atlantic
PHL
LHR
7h 23m
nonstop
LHR
PHL
8h 15m
nonstop
Depart: Thu Nov 30 2017 Return: Thu Dec 7 2017 Trip spans 8 days
British Airways
British Airways
PHL
LHR
7h 05m
nonstop
LHR
PHL
10h 40m
1 stop
Depart: Mon Jun 5 2017 Return: Thu Jun 15 2017 Trip spans 11 days
Iberia
Iberia
PHL
LHR
7h 30m
nonstop
LHR
PHL
14h 20m
1 stop
* 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.

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Airports
Origin

Philadelphia
$539
Destination

Southampton
$756
London
only $539
only $770
only $566
Edinburgh
$803
Birmingham
$964