$828 Cheap United flights London (LHR) to Washington (IAD)

View $828 flight on Mon, Jun 15, 2026Opens in a new window

$828 Cheap United flights London (LHR) to Washington (IAD)

Prices were available within the past 7 days and start at $828 for one-way flights and $1,110 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Jun 15 - Thu, Jul 2
LHR
London
IAD
Washington
$1,110 Roundtrip, found 3 hours ago
$1,110
Roundtrip
found 3 hours ago
Select United flight, departing Mon, Jun 15 from London to Washington, returning Thu, Jul 2, priced at $1,110 found 3 hours ago

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

February is typically the cheapest month to fly

From $463 - $777 per traveler.

Travel information

Origin airport
Heathrow
Destination airport
Washington Dulles Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, Icelandair, KLM, Lufthansa, Royal Air Maroc, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Popular airline
Aer Lingus
Distance
5866 km
Average flight time
3 hours 11 mins

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