Cheap flights from San Jose to St. Louis from $123
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Jose to St. Louis departing on 9/20. 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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Alaska Airlines flights from San Jose to St. Louis
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Delta flights from San Jose to St. Louis
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How to get the cheapest flight ticket from San Jose to St. Louis
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 St. Louis?
In general, August is the cheapest month to fly from San Jose to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $328. The month of July is another great option to travel to St. Louis, with average flight prices from San Jose averaging around $332.
What is the cheapest day to depart on your flight to St. Louis?
The cheapest day to depart on your flight to St. Louis is on a Monday when prices can be found for as low as $441. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $645. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.
What is the cheapest time of day to depart on your flight to St. Louis?
Flying to St. Louis from San Jose in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $358 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $557 per ticket.
What is the cheapest San Jose to Lambert-St Louis flight route?
Fly from San Jose to Lambert-St Louis for the best San Jose - Lambert-St Louis flight prices
How far in advance should I book a flight to St. Louis?
You are more likely to see cheaper flights to St. Louis from San Jose when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $386 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from San Jose for as low as $289 on momondo.
What cabin class options are available on San Jose to Lambert-St Louis flights?
There are 1 cabin classes available to choose from on San Jose to Lambert-St Louis 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 San Jose to Lambert-St Louis?
Spirit Airlines, Frontier, and Hawaiian Airlines are the most popular carriers operating from San Jose to Lambert-St Louis
What airlines fly to St. Louis?
United Airlines, Southwest and Delta are the top three most popular airlines that fly to St. Louis from San Jose according to our data. United Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.
How many flights depart from San Jose to St. Louis on average per day?
As of June 2025, there are 1 flights per day flying from San Jose to St. Louis. The most common time of day flights depart is 6:00AM, with 100% of flights taking off at noon.
How many flights depart from San Jose to St. Louis on average per week?
9 flights are operational weekly from San Jose to St. Louis as of June 2025. The most popular departure day for this route is Mon, with 33% of flights per week taking off on this day.
When to book flights from San Jose to St. Louis
Cheap San Jose to St. Louis (SJC to STL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Jose to St. Louis
How far is San Jose to Lambert-St Louis by plane?
San Jose and Lambert-St Louis are 1718.3 mi apart from one another. Typically, this will take 5h 30m by plane in normal conditions.
When did momondo last update prices for flights from San Jose Airport to Lambert-St Louis Airport?
Prices for flights from San Jose Airport to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from San Jose Airport to Lambert-St Louis Airport?
As of June 2025, there are 5 operators available to choose from for flights from San Jose Airport to Lambert-St Louis Airport.
How old do you have to be to fly from San Jose Airport to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Jose Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from San Jose to St. Louis?
momondo data reveals that the most frequently booked plane model on the route from San Jose to St. Louis is Boeing 737 MAX 9, representing 14.81% of all bookings. The subsequent popular models are Boeing 737-900 at 14.81%, Boeing 777 at 11.11%, and Boeing 787-8 Dreamliner at 11.11%.
What is the most popular airline from San Jose to St. Louis?
Based on momondo bookings for flights between San Jose and St. Louis, the leading airline is Delta, making up 37% of the total bookings. Other popular airlines include Southwest with 28%, United Airlines with 20%, and American Airlines with 11%.
Best airlines flying from San Jose to St. Louis
Compare and see reviews for airlines that fly from San Jose to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $118 | Free Cancellation | Rating 5.9 3,295 reviews | |||
| PriceFrom $246 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $246 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $332 | Free Cancellation | Rating 8.0 4,287 reviews |
Southwest Flights From San Jose to St. Louis
Southwest flight deals from San Jose to St. Louis start from $332 round-trip. Over the 9 Southwest flights for this route in a normal week, average airfare is usually $437 round-trip - but some users have found much cheaper deals with momondo.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from San Jose to St. Louis?
Finding the right flight to St. Louis from San Jose is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.
Can I find flights from San Jose to St. Louis with flexible booking policies on momondo?
Yes. All flights to St. Louis from San Jose on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from San Jose to St. Louis?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from San Jose.
I’m not ready to book a flight from San Jose to St. Louis right now. Can momondo alert me if prices change?
Price alerts on flights to St. Louis from San Jose are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.