Cheap flights from St. Louis to San Francisco Bay Area from $111
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to San Francisco Bay Area departing on 8/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines flights from St. Louis to San Francisco Bay Area
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How to get the cheapest flight ticket from St. Louis to San Francisco Bay Area
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to San Francisco Bay Area?
In general, August is the cheapest month to fly from St. Louis to San Francisco Bay Area. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $328. If you aren’t able to travel to San Francisco Bay Area during the month of August, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $331.
What is the cheapest day to depart on your flight to San Francisco Bay Area?
On average, the least expensive day to fly to San Francisco Bay Area from St. Louis is on a Thursday. momondo users have found tickets for Thursday departures for as low as $558. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,060.
What is the cheapest time of day to depart on your flight to San Francisco Bay Area?
Our most recent data shows that the best time of day to fly to San Francisco Bay Area is at noon. Flights from St. Louis to San Francisco Bay Area during this time can be as low as $454. In contrast, the most expensive time of day to depart to San Francisco Bay Area is in the evening when prices are around $1,186.
What is the cheapest Lambert-St Louis to San Francisco Bay Area flight route?
Fly from Lambert-St Louis to San Francisco for the best Lambert-St Louis - San Francisco Bay Area flight prices
How far in advance should I book a flight to San Francisco Bay Area?
You are more likely to see cheaper flights to San Francisco Bay Area from St. Louis when booking 11 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco Bay Area for around $371 when searching 11 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco Bay Area from St. Louis for as low as $302 on momondo.
What cabin class options are available on Lambert-St Louis to San Francisco Bay Area flights?
There are 4 cabin classes available to choose from on Lambert-St Louis to San Francisco Bay Area flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Lambert-St Louis to San Francisco Bay Area?
Sun Country Air, Frontier, and Spirit Airlines are the most popular carriers operating from Lambert-St Louis to San Francisco Bay Area
What airlines fly to San Francisco Bay Area?
United Airlines, Southwest and Delta are the top three most popular airlines that fly to San Francisco Bay Area from St. Louis according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to San Francisco Bay Area. Keep in mind that there are 5 different airlines that fly to San Francisco Bay Area on a routine basis, so you have a few additional options to choose from.
How many flights depart from St. Louis to San Francisco Bay Area on average per day?
7 flights are operational daily from St. Louis to San Francisco Bay Area as of June 2025. The most popular departure time for this route is 7:00PM, with 42% of flights per day taking off in the evening.
How many flights depart from St. Louis to San Francisco Bay Area on average per week?
As of June 2025, 49 flights take off from St. Louis and land in San Francisco Bay Area each week. The most common flight departure day for this route is Mon, with 22% of weekly flights taking off on this day.
Cheap St. Louis to San Francisco Bay Area flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to San Francisco Bay Area
Best Price Found | $111 |
|---|---|
Fastest flight time | 4h 10m |
Direct flights | Every day |
Airports in San Francisco Bay Area | 3 airports |
When did momondo last update prices for flights from Lambert-St Louis Airport to San Francisco Bay Area?
Prices for flights from Lambert-St Louis Airport to San Francisco Bay Area are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to San Francisco Bay Area?
As of June 2025, there are 5 operators available to choose from for flights from Lambert-St Louis Airport to San Francisco Bay Area.
How old do you have to be to fly from Lambert-St Louis Airport to San Francisco Bay Area?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to San Francisco Bay Area.
What documentation or ID do you need to fly to San Francisco Bay Area?
The travel and health documents you'll need for your trip to San Francisco Bay Area may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Bay Area. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from St. Louis to San Francisco Bay Area?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from St. Louis to San Francisco Bay Area is Boeing 737-800 Passenger/BBJ2 (winglets) (19.83% of total bookings). The next most popular plane models are Boeing 737-700 Passenger/BBJ1 (winglets) (16.95%), Boeing 737 MAX 8 (15.46%), and Airbus A319 (6.70%).
Best airlines flying from St. Louis to San Francisco Bay Area
Compare and see reviews for airlines that fly from St. Louis to San Francisco Bay Area with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $117 | Free Cancellation | Rating 5.9 3,295 reviews | |||
| PriceFrom $236 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $236 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $239 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 8.0 4,287 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to San Francisco Bay Area?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to San Francisco Bay Area for you.
Can I find flights from St. Louis to San Francisco Bay Area with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to San Francisco Bay Area from St. Louis with this policy.
How can momondo help me find flights from St. Louis to San Francisco Bay Area?
momondo provides multiple filters to help you find the best flight to San Francisco Bay Area from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from St. Louis to San Francisco Bay Area right now. Can momondo alert me if prices change?
If you are simply researching potential flights to San Francisco Bay Area, momondo offers a useful price alert feature which will track prices for flights to San Francisco Bay Area from St. Louis and alert you when they change.