Book United London to Washington, D.C. flight deals from $585

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Search flights from London to Washington, D.C. (LHR - IAD)

October

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Tuesday 9th

Return Monday 15th
from$ 1,072*Viewed: 20 hours ago

Friday 19th

Return Monday 22nd
from$ 828*Viewed: 1 day ago

Friday 26th

Return Monday 29th
from$ 704*Viewed: 1 day ago

November

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Wednesday 7th

Return Saturday 10th
from$ 1,283*Viewed: 2 hours ago

Wednesday 21st

Return Saturday 24th
from$ 1,958*Viewed: 1 day ago

December

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Saturday 1st

Return Tuesday 4th
from$ 697*Viewed: 1 day ago

Wednesday 26th

Return Thursday 10th
from$ 585*Viewed: 1 day ago

Thursday 27th

Return Saturday 5th
from$ 870*Viewed: 1 day 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 London to Washington, D.C.

from
to
Type
Dates
Price*
London (LHR)
to Washington, D.C. (IAD)
Roundtrip
Depart Wed 26 Dec 2018
Return Thu 10 Jan 2019
from$ 585*Viewed: 1 day ago
London (LHR)
to Washington, D.C. (WAS)
Roundtrip
Depart Fri 16 Nov 2018
Return Wed 21 Nov 2018
from$ 603*Viewed: 5 hours ago
London (LHR)
to Washington, D.C. (IAD)
Roundtrip
Depart Sat 1 Dec 2018
Return Tue 4 Dec 2018
from$ 697*Viewed: 1 day ago
London (LHR)
to Washington, D.C. (IAD)
Roundtrip
Depart Fri 26 Oct 2018
Return Mon 29 Oct 2018
from$ 704*Viewed: 1 day ago
London (LHR)
to Washington, D.C. (WAS)
Roundtrip
Depart Sat 1 Dec 2018
Return Sat 15 Dec 2018
from$ 704*Viewed: 20 hours ago
London (LHR)
to Washington, D.C. (WAS)
Roundtrip
Depart Sat 15 Dec 2018
Return Sat 29 Dec 2018
from$ 736*Viewed: 20 hours ago
London (LHR)
to Washington, D.C. (IAD)
Roundtrip
Depart Fri 29 Mar 2019
Return Sat 20 Apr 2019
from$ 736*Viewed: 1 day ago
London (LHR)
to Washington, D.C. (IAD)
Roundtrip
Depart Mon 15 Apr 2019
Return Mon 22 Apr 2019
from$ 756*Viewed: 1 day ago
London (LHR)
to Washington, D.C. (IAD)
Roundtrip
Depart Fri 3 May 2019
Return Thu 9 May 2019
from$ 789*Viewed: 1 day ago
London (LHR)
to Washington, D.C. (IAD)
Roundtrip
Depart Fri 19 Oct 2018
Return Mon 22 Oct 2018
from$ 828*Viewed: 1 day 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.