$385 Cheap American Airlines flights San Francisco (SFO) to London (LHR)

View $385 flight on Tue, Apr 21, 2026Opens in a new window

$385 Cheap American Airlines flights San Francisco (SFO) to London (LHR)

Prices were available within the past 7 days and start at $385 for one-way flights and $610 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Apr 13 - Thu, Apr 30
SFO
San Francisco
LHR
London
$610 Roundtrip, found 1 day ago
$610
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Apr 13 from San Francisco to London, returning Thu, Apr 30, priced at $610 found 1 day ago
American Airlines
Mon, Apr 13 - Thu, Apr 30
SFO
San Francisco
LHR
London
$640 Roundtrip, found 1 day ago
$640
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Apr 13 from San Francisco to London, returning Thu, Apr 30, priced at $640 found 1 day ago

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

February is typically the cheapest month to fly

From $446 - $805 per traveler.
Flights from San Francisco (SFO) to London (LHR)
Origin airport
San Francisco Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic
Popular airline
United
Distance
8567 km
Average flight time
18 hours 28 mins