$287 Cheap United flights St. Louis (STL) to San Francisco (SFO)

View $287 flight on Mon, Mar 30, 2026Opens in a new window

$287 Cheap United flights St. Louis (STL) to San Francisco (SFO)

Prices were available within the past 7 days and start at $287 for one-way flights and $483 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Mar 30 - Thu, Apr 2
STL
St. Louis
SFO
San Francisco
$483 Roundtrip, found 12 hours ago
$483
Roundtrip
found 12 hours ago
Select United flight, departing Mon, Mar 30 from St. Louis to San Francisco, returning Thu, Apr 2, priced at $483 found 12 hours ago

Find the cheapest month to fly from St. Louis (STL) to San Francisco (SFO)

February is typically the cheapest month to fly

From $120 - $376 per traveler.
Flights from St. Louis (STL) to San Francisco (SFO)
Origin airport
Lambert-St. Louis Intl.
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Delta
Distance
2771 km
Average flight time
2 hours 57 mins