$384 Cheap American Airlines flights Washington (IAD) to London (LHR)

View $384 flight on Sun, Mar 22, 2026Opens in a new window

$384 Cheap American Airlines flights Washington (IAD) to London (LHR)

Prices were available within the past 7 days and start at $384 for one-way flights and $581 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Dec 2 - Wed, Dec 10
IAD
Washington
LHR
London
$581 Roundtrip, found 10 hours ago
$581
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, Dec 2 from Washington to London, returning Wed, Dec 10, priced at $581 found 10 hours ago
American Airlines
Tue, Dec 2 - Wed, Dec 10
IAD
Washington
LHR
London
$591 Roundtrip, found 10 hours ago
$591
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, Dec 2 from Washington to London, returning Wed, Dec 10, priced at $591 found 10 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, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Royal Air Maroc, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Popular airline
British Airways
Distance
5866 km
Average flight time
12 hours 22 mins