Cheap Flights From Lambert-St. Louis Intl. (STL) To San Francisco Intl. (SFO)

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Cheapest Flights from St. Louis (STL) to San Francisco (SFO)

The cheapest flights to San Francisco Intl. found within the past 7 days were CA $562 round trip and CA $296 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Apr 2 - Tue, Apr 7
STL
St. Louis
SFO
San Francisco
CA $562 Roundtrip, found 4 days ago
CA $562
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Apr 2 from St. Louis to San Francisco, returning Tue, Apr 7, priced at CA $562 found 4 days ago
Fri, Apr 3 - Wed, Apr 8
STL
St. Louis
SFO
San Francisco
CA $612 Roundtrip, found 4 days ago
CA $612
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Apr 3 from St. Louis to San Francisco, returning Wed, Apr 8, priced at CA $612 found 4 days ago
Thu, Apr 2 - Tue, Apr 7
STL
St. Louis
SFO
San Francisco
CA $643 Roundtrip, found 4 days ago
CA $643
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Apr 2 from St. Louis to San Francisco, returning Tue, Apr 7, priced at CA $643 found 4 days ago
Fri, Apr 24 - Mon, Apr 27
STL
St. Louis
SFO
San Francisco
CA $697 Roundtrip, found 6 days ago
CA $697
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Apr 24 from St. Louis to San Francisco, returning Mon, Apr 27, priced at CA $697 found 6 days ago
Fri, Apr 24 - Mon, Apr 27
STL
St. Louis
SFO
San Francisco
CA $701 Roundtrip, found 6 days ago
CA $701
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Apr 24 from St. Louis to San Francisco, returning Mon, Apr 27, priced at CA $701 found 6 days ago
Fri, Apr 24 - Mon, Apr 27
STL
St. Louis
SFO
San Francisco
CA $711 Roundtrip, found 6 days ago
CA $711
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Apr 24 from St. Louis to San Francisco, returning Mon, Apr 27, priced at CA $711 found 6 days ago

Frequently asked questions

Are there direct flights from STL to San Francisco Intl. Airport (SFO)?
If you want to travel as fast as possible from STL to San Francisco Intl. Airport (SFO), look up United Airlines, American Airlines and Delta. No airlines offer nonstop flights on this route, so you'll need to make at least one stopover.
What airlines fly from St. Louis Lambert International Airport to San Francisco Airport?
No airlines are currently offering direct flights between St. Louis Lambert International Airport and San Francisco Airport. Save time and avoid irritating stopovers by researching the most efficient routes in advance.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

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*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.