Flights from St. Louis to San Jose Starting at £103

We've found these cheap flights for you. You can book one-way or return flight tickets.

Round-trip
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from St. Louis to San Jose

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Cheapest flights

From price

16 23
23 30
Apr

30 6
6 13
13 20
20 27
May

27 4
4 11
11 18
18 25
Jun

25 1
1 8

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

When are flight tickets from St. Louis (STL) to San Jose (SJO) the cheapest?

Airlines adjust prices for flights from St. Louis to San Jose based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from St. Louis (STL) to San Jose (SJO) cost?

According to Trip.com's data, the lowest price is around £1,420.
What is the transportation method from the main airport to downtown in San Jose?
- The distance from Juan Santamaria International Airport to downtown is about 15km, by taxi about 30 minutes.
How many airports in San Jose (SJO)?

There are 2 airport(s) in San Jose (SJO): Juan Santamaria International Airport and Tobias Bolanos International Airport.

How to find a cheap flight from St. Louis to San Jose

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from St. Louis to San Jose. Book your flights at the right time and save more.

Be flexible with your travel dates to get the cheapest flight from St. Louis to San Jose.

Simply tap "Date" on the flight search bar to browse through the calendar and check out airfare from St. Louis to San Jose over the next 6 months in 2025. If you're planning to fly within the next three months, it looks like the most affordable option is on Thu, Apr 3, with one-way flights priced at just £103.

Compare cheap flight deals from St. Louis to San Jose across hundreds of airlines.

With our extensive search, you can compare prices from over 500 airlines to find the cheapest flight tickets from St. Louis to San Jose. The cheapest airline for this route is Frontier Airlines.

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You can always find the latest offers through Trip.com Deals and Promo Codes for cheap flights. By signing up for a free membership, you'll get access to even more deals for your flights.

Book early or wait until the last minute.

It's usually best to book early. Flight tickets are often cheapest when they're first released, typically about a year before the departure date. So, have a look online as soon as the flights you're interested in become available. If you miss the cheapest time, you might still find some good deals as the departure date gets closer.

Search for flights on the go.

For the best travel flight booking experience, download the Trip.com app. You can search for cheap flights from St. Louis to San Jose and snag some exclusive deals just for you.

Flight Information from St. Louis to San Jose

Cheapest one-way flight price	£102
Off-season travel month	April
Peak season for travel	June
Flight distance	3,246.5km
Popular airline	Alaska Airlines