$404 Cheap American Airlines flights Washington (IAD) to London (LHR)

View $404 flight on Mon, Oct 6, 2025Opens in a new window

$404 Cheap American Airlines flights Washington (IAD) to London (LHR)

Prices were available within the past 7 days and start at $404 for one-way flights and $675 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Oct 6 - Fri, Oct 31
IAD
Washington
LHR
London
$675 Roundtrip, found 6 days ago
$675
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, Oct 6 from Washington to London, returning Fri, Oct 31, priced at $675 found 6 days 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
Virgin Atlantic
Distance
5866 km