$495 Cheap American Airlines flights Washington (IAD) to London (LHR)

View $495 flight on Wed, May 13, 2026Opens in a new window

$495 Cheap American Airlines flights Washington (IAD) to London (LHR)

Prices were available within the past 7 days and start at $495 for one-way flights and $879 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Apr 27 - Wed, May 6
IAD
Washington
LHR
London
$879 Roundtrip, found 3 days ago
$879
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Apr 27 from Washington to London, returning Wed, May 6, priced at $879 found 3 days ago

Find the cheapest month to fly from Washington (IAD) to London (LHR)

February is typically the cheapest month to fly

From $444 - $791 per traveler.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, Royal Air Maroc, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Popular airline
Virgin Atlantic
Distance
5866 km
Average flight time
12 hours 32 mins

Explore a world of travel with Expedia