$3,073 Cheap United flights London (LHR) to Washington (IAD)

View $3,073 flight on Mon, Sep 15, 2025Opens in a new window

$3,073 Cheap United flights London (LHR) to Washington (IAD)

Prices were available within the past 7 days and start at $3,073 for one-way flights and $3,745 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Sep 15 - Tue, Sep 16
LHR
London
IAD
Washington
$3,745 Roundtrip, found 1 day ago
$3,745
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 15 from London to Washington, returning Tue, Sep 16, priced at $3,745 found 1 day ago
Flights from London (LHR) to Washington (IAD)
Origin airport
Heathrow
Destination airport
Washington Dulles Intl.
Airlines serving
Aer Lingus, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, United, Virgin Atlantic
Popular airline
KLM
Distance
5866 km
Average flight time
3 hours 15 mins