$1,356 Cheap United flights London (LHR) to San Francisco (SFO)

View $1,356 flight on Sat, Sep 13, 2025Opens in a new window

$1,356 Cheap United flights London (LHR) to San Francisco (SFO)

Prices were available within the past 7 days and start at $1,356 for one-way flights and $536 for roundtrip, for the period specified. Prices and availability are subject to change. Additional terms apply.
United
Sat, Sep 13 - Sat, Sep 20
LHR
London
SFO
San Francisco
$536
Roundtrip
Found 2 days ago
Select United flight, departing Sat, Sep 13 from London to San Francisco, returning Sat, Sep 20, priced at $536 Found 2 days ago
United
Sat, Sep 13 - Sat, Sep 20
LHR
London
SFO
San Francisco
$540
Roundtrip
Found 2 days ago
Select United flight, departing Sat, Sep 13 from London to San Francisco, returning Sat, Sep 20, priced at $540 Found 2 days ago
United
Sat, Sep 13 - Sat, Sep 20
LHR
London
SFO
San Francisco
$542
Roundtrip
Found 2 days ago
Select United flight, departing Sat, Sep 13 from London to San Francisco, returning Sat, Sep 20, priced at $542 Found 2 days ago
United
Sat, Sep 13 - Sat, Sep 20
LHR
London
SFO
San Francisco
$557
Roundtrip
Found 2 days ago
Select United flight, departing Sat, Sep 13 from London to San Francisco, returning Sat, Sep 20, priced at $557 Found 2 days ago
United
Sat, Sep 13 - Sat, Sep 20
LHR
London
SFO
San Francisco
$563
Roundtrip
Found 2 days ago
Select United flight, departing Sat, Sep 13 from London to San Francisco, returning Sat, Sep 20, priced at $563 Found 2 days ago
United
Sat, Sep 13 - Sat, Sep 20
LHR
London
SFO
San Francisco
$575
Roundtrip
Found 2 days ago
Select United flight, departing Sat, Sep 13 from London to San Francisco, returning Sat, Sep 20, priced at $575 Found 2 days ago
Flights from London (LHR) to San Francisco (SFO)
Origin airport
Heathrow
Destination airport
San Francisco Intl.
Distance
8567 km
Average flight time
3 hours 2 mins