$1,041 Cheap United flights London (LHR) to San Francisco (SFO)

View $1,041 flight on Wed, Jul 22, 2026Opens in a new window

$1,041 Cheap United flights London (LHR) to San Francisco (SFO)

Prices were available within the past 7 days and start at $1,041 for one-way flights and $1,042 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Apr 15 - Mon, Apr 20
LHR
London
SFO
San Francisco
$1,042 Roundtrip, found 11 hours ago
$1,042
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Apr 15 from London to San Francisco, returning Mon, Apr 20, priced at $1,042 found 11 hours ago

Find the cheapest month to fly from London (LHR) to San Francisco (SFO)

March is typically the cheapest month to fly

From $477 - $1,070 per traveler.

Travel information

Origin airport
Heathrow
Destination airport
San Francisco Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic
Popular airline
Icelandair
Distance
8567 km
Average flight time
3 hours 5 mins

Explore a world of travel with Expedia