$384 Cheap Air Canada flights Washington (IAD) to London (LHR)

View $384 flight on Wed, Nov 26, 2025Opens in a new window

$384 Cheap Air Canada flights Washington (IAD) to London (LHR)

Prices were available within the past 7 days and start at $384 for one-way flights and $781 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, Dec 15 - Tue, Dec 23
IAD
Washington
LHR
London
$781 Roundtrip, found 11 hours ago
$781
Roundtrip
found 11 hours ago
Select Air Canada flight, departing Mon, Dec 15 from Washington to London, returning Tue, Dec 23, priced at $781 found 11 hours ago
Flights from Washington (IAD) to London (LHR)
Origin airport
Washington Dulles Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Popular airline
United
Distance
5866 km
Average flight time
12 hours 22 mins