On this page, you can find and book flights from San Francisco to St. Louis. The distance between the cities is 2,809 km, with a flight frequency of approximately 4 flights per week.
Flights on this route are operated by United Airlines and Southwest Airlines. Since ticket prices are dynamic, we recommend using the low-fare calendar and checking transfer information in the sections on how to get to the airport in San Francisco and from the airport in St. Louis.
Below is a calendar of the lowest flight ticket prices for San Francisco — St. Louis by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $107 in y, and the most expensive are around $233 in a. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.
San Francisco → St. Louis, average one-way price
| Month | Average price | Level | Month | Average price | Level | Month | Average price | Level |
|---|---|---|---|---|---|---|---|---|
| Jan | $239 | medium | May | $259 | medium | Sep | $219 | low |
| Feb | $289 | high | Jun | $279 | high | Oct | $229 | low |
| Mar | $299 | high | Jul | $289 | high | Nov | $279 | high |
| Apr | $249 | medium | Aug | $269 | medium | Dec | $289 | high |
Some values are estimated based on seasonality.
Weather conditions in St. Louis vary significantly throughout the year: July is the warmest month, with daytime temperatures reaching up to 31.4°C. The coldest weather and frequent precipitation are typical for January and March, which can see up to 123.57 mm of moisture.
The lowest flight cost was recorded in July, starting $107. During peak periods, such as March, ticket prices can increase significantly, starting $260.
July is a great month to visit due to the lowest prices, despite the summer heat. If you're planning a budget-friendly trip, you might want to avoid March due to higher fares and a high probability of rain.
Two main airlines operate regular flights on the route from San Francisco to St. Louis: United Airlines and Southwest Airlines. The total flight frequency is about 4 flights per week, including direct flights. A full schedule for specific dates and connection details are available in the interactive list of carriers below.
Flights San Francisco — St. Louis depart from San Francisco International Airport and arrive at Lambert-St. Louis International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.
The estimated direct flight time is about 3 hours and 30 minutes, considering the 2,809 km distance between the cities.
Regular flights between San Francisco and St. Louis are operated by United Airlines and Southwest Airlines.
Ticket prices constantly change based on demand; you can find the current minimum for your dates in the low-fare calendar on this page.
Most flights from San Francisco arrive at St. Louis Lambert International Airport (STL).
The best deals usually appear 1–2 months before the trip, with June and July considered the cheapest months to fly.
We use cookies and services to collect user information. This is essential for the functioning of the site and for marketing purposes. You can find out more in .
Where travelers fly most — pick a route and check prices
