Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from San Francisco to St Louis
The cheapest flights right now
San Francisco – St Louis
Outbound – Nov 26, 2026
direct
3h 45m Return – Dec 3, 2026
direct
4h 25m $348
today
San Francisco – St Louis
Outbound – Nov 26, 2026
direct
3h 45m Return – Dec 3, 2026
1 stop
6h 40m DEN
$361
today
San Francisco – St Louis
Outbound – Nov 26, 2026
direct
3h 45m Return – Dec 3, 2026
1 stop
6h 35m DAL
$359
today
San Francisco – St Louis
Outbound – Nov 26, 2026
direct
3h 49m Return – Dec 3, 2026
direct
4h 38m $490
today
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$200
Average price of a round trip
$307
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
13h32
A flight from San Francisco to St Louis takes on average 13h32.
Best time
September
According to user searches, the ideal month to go to St Louis is September.
The best flight deals for a week
San Francisco – St Louis
Outbound – Nov 26, 2026
direct
3h 45m Return – Dec 3, 2026
direct
4h 25m $348
today
San Francisco – St Louis
Outbound – Nov 26, 2026
direct
3h 45m Return – Dec 3, 2026
1 stop
6h 40m DEN
$361
today
San Francisco – St Louis
Outbound – Nov 26, 2026
direct
3h 45m Return – Dec 3, 2026
1 stop
6h 35m DAL
$359
today
San Francisco – St Louis
Outbound – Nov 26, 2026
direct
3h 49m Return – Dec 3, 2026
direct
4h 38m $490
today
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Tips for finding a cheap flight from San Francisco to St Louis
Check out our tips for booking your flight to St Louis (USA) from San Francisco (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is October, with an average flight ticket price of $307 (calculation over the last two years). The most touristic season corresponds to the months of October, November and January.
For the cheapest flights, it is advisable to buy your ticket at least 21 days before the departure date.
The airline offering the cheapest flight tickets is Frontier Airlines. A ticket from the airline Frontier Airlines to St Louis costs on average $261.
The airlines that offer the most flights are .
Price of flight tickets from San Francisco to St Louis
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $200 to $511
- The average price of a flight ticket is about $307
- Prices are lowest for stays in the month of October
- The month in which booking a ticket is cheaper is: October
info departure city :
San Francisco, USA
airport :
San Francisco International Airport (SFO)
local time :
San Francisco is a city in the country USA, the time zone is [[timezone]]. In San Francisco, it is currently {fromLocalTime}, the temperature is on average 14°C, with a minimum of 13°C and a maximum of 15°C.
The city of San Francisco has 1 airport(s): San Francisco
destination info :
St Louis, USA
airports :
Lambert-St. Louis International Airport (STL)
St. Louis Downtown Airport (CPS)
Spirit of St. Louis Airport (SUS)
local time :
St Louis is in the country USA, the time zone is [[timezone]]. In St Louis, it is currently {toLocalTime}, the temperature is on average 16°C, with a minimum of 10°C and a maximum of 22°C.
The city of St Louis has 3 airport(s): Lambert-St. Louis, St. Louis Downtown and Spirit of St. Louis
Useful info about St Louis
What is the least touristic period to go to St Louis?
If you want to visit St Louis during the least touristic period, choose the month of September.
What is the most popular time to travel to St Louis?
In St Louis, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from San Francisco to St Louis?
According to our data, it is recommended to book your flight 21 days before your departure. If you book your flight ticket 4 weeks before your departure, you may find a price below average. The cheapest day to book a flight from San Francisco to St Louis is Saturday.
What are the arrival and destination airports when traveling between San Francisco and St Louis?
When you leave, you can leave from San Francisco, and you will arrive at Lambert-St. Louis.
How to reach San Francisco airport from the city centre?
This information is not available at this time.
Are there other means of transportation to go from San Francisco to St Louis?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between San Francisco and St Louis?
In summer, the average temperature is 25°C in St Louis and 17°C in San Francisco. The average rainfall in summer is 135 mm in St Louis and 2 mm in San Francisco. In summer, it is warmer in St Louis and it rains less in San Francisco. In winter, it is colder in San Francisco and it rains more in San Francisco.
