Book United Philadelphia to London flight deals from $676

Select journey type

Enter to select travel class and passengers

Search flights from Philadelphia to London (PHL - LHR)

October

Skip to content

Sunday 21st

Return Monday 5th
from$ 676*Viewed: 2 hours ago

Monday 22nd

Return Tuesday 6th
from$ 676*Viewed: 2 hours ago

Monday 29th

Return Tuesday 13th
from$ 676*Viewed: 2 hours ago

November

Skip to content

Tuesday 6th

Return Wednesday 21st
from$ 676*Viewed: 2 hours ago

Friday 23rd

Return Saturday 8th
from$ 676*Viewed: 2 hours ago

Wednesday 28th

Return Thursday 13th
from$ 676*Viewed: 2 hours ago

December

Skip to content

Monday 10th

Return Tuesday 25th
from$ 686*Viewed: 2 hours ago

Tuesday 11th

Return Wednesday 26th
from$ 679*Viewed: 2 hours ago

Wednesday 12th

Return Thursday 27th
from$ 686*Viewed: 2 hours ago
**Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply..

Plan ahead for flights from Philadelphia to London

from
to
Type
Dates
Price*
Philadelphia (PHL)
to London (LHR)
Roundtrip
Depart Sun 21 Oct 2018
Return Mon 5 Nov 2018
from$ 676*Viewed: 2 hours ago
Philadelphia (PHL)
to London (LHR)
Roundtrip
Depart Mon 22 Oct 2018
Return Tue 6 Nov 2018
from$ 676*Viewed: 2 hours ago
Philadelphia (PHL)
to London (LHR)
Roundtrip
Depart Sun 28 Oct 2018
Return Mon 12 Nov 2018
from$ 676*Viewed: 2 hours ago
Philadelphia (PHL)
to London (LHR)
Roundtrip
Depart Mon 29 Oct 2018
Return Tue 13 Nov 2018
from$ 676*Viewed: 2 hours ago
Philadelphia (PHL)
to London (LHR)
Roundtrip
Depart Tue 30 Oct 2018
Return Wed 14 Nov 2018
from$ 676*Viewed: 2 hours ago
Philadelphia (PHL)
to London (LHR)
Roundtrip
Depart Thu 1 Nov 2018
Return Fri 16 Nov 2018
from$ 676*Viewed: 2 hours ago
Philadelphia (PHL)
to London (LHR)
Roundtrip
Depart Sat 3 Nov 2018
Return Sun 18 Nov 2018
from$ 676*Viewed: 2 hours ago
Philadelphia (PHL)
to London (LHR)
Roundtrip
Depart Sun 4 Nov 2018
Return Mon 19 Nov 2018
from$ 676*Viewed: 2 hours ago
Philadelphia (PHL)
to London (LHR)
Roundtrip
Depart Mon 5 Nov 2018
Return Tue 20 Nov 2018
from$ 676*Viewed: 2 hours ago
Philadelphia (PHL)
to London (LHR)
Roundtrip
Depart Tue 6 Nov 2018
Return Wed 21 Nov 2018
from$ 676*Viewed: 2 hours ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.