SJO - STL

$278 Find Cheap Flights from San José to St. Louis - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San José to St. Louis departing on 9/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$444
Typical prices: $437-$453
United Airlines
Thu 9/17Fri 9/25
SJO - STL • 2 stops
Cheapest one-way
$278
Overall average: $263
American Airlines
Sun 9/27
SJO - STL • 1 stop
Top airlines
Cheapest • from $444 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San José and St. Louis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $477 (round-trip)
Shortest trip • 7h 36m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San José to St. Louis (SJO-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San José to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San José to St. Louis

Thu, Sep 17 - Fri, Sep 25
United Airlines Logo
1:25 pm - 12:02 pm
SJO
-
STL
21h 37m
2 stops
United Airlines Logo
1:29 pm - 11:38 am
STL
-
SJO
23h 09m
2 stops
$444United Airlines
Thu, Sep 17 - Fri, Sep 25
United Airlines Logo
1:25 pm - 10:30 pm
SJO
-
STL
8h 05m
1 stop
United Airlines Logo
6:15 am - 7:37 pm
STL
-
SJO
14h 22m
1 stop
$444United Airlines
Thu, Sep 17 - Fri, Sep 25
United Airlines Logo
7:55 am - 10:30 pm
SJO
-
STL
13h 35m
1 stop
United Airlines Logo
1:29 pm - 7:37 pm
STL
-
SJO
31h 08m
2 stops
$444United Airlines
Thu, Sep 10 - Thu, Sep 17
American Airlines Logo
2:57 pm - 9:29 am
SJO
-
STL
17h 32m
2 stops
American Airlines Logo
6:53 am - 8:07 pm
STL
-
SJO
14h 14m
2 stops
$458American Airlines
Thu, Sep 10 - Thu, Sep 17
American Airlines Logo
2:57 pm - 9:29 am
SJO
-
STL
17h 32m
2 stops
American Airlines Logo
5:00 am - 11:59 am
STL
-
SJO
7h 59m
1 stop
$458American Airlines
Thu, Sep 10 - Thu, Sep 17
Southwest Logo
1:40 pm - 9:55 pm
SJO
-
STL
7h 15m
1 stop
Southwest Logo
12:15 pm - 6:45 pm
STL
-
SJO
7h 30m
1 stop
$485Southwest
Tue, Sep 15 - Wed, Sep 23
United Airlines Logo
1:25 pm - 3:38 pm
SJO
-
STL
25h 13m
2 stops
United Airlines Logo
5:30 pm - 7:37 pm
STL
-
SJO
27h 07m
2 stops
$491United Airlines
Thu, Sep 10 - Thu, Sep 17
Southwest Logo
1:40 pm - 9:55 pm
SJO
-
STL
7h 15m
1 stop
Southwest Logo
12:15 pm - 6:45 pm
STL
-
SJO
7h 30m
1 stop
$500Southwest
Fri, Nov 13 - Tue, Nov 17
Delta Logo
2:30 pm - 11:56 pm
SJO
-
STL
9h 26m
1 stop
Delta Logo
10:00 am - 10:15 pm
STL
-
SJO
12h 15m
1 stop
$506Delta
Fri, Sep 4 - Fri, Sep 18
American Airlines Logo
1:07 pm - 11:42 pm
SJO
-
STL
9h 35m
1 stop
American Airlines Logo
2:11 pm - 8:07 pm
STL
-
SJO
6h 56m
1 stop
$538American Airlines
Booking Insights

KAYAK's insights & trends for San José to St. Louis flights

Get data-powered insights and trends into flights from San José to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San José to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San José to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San José to St. Louis is September, where tickets cost $437 (return) on average. On the other hand, the most expensive months are January and July, where the average cost of round-trip tickets is $719 and $683 respectively.

Good to know

Low season

October

Cheapest flight

$278
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from San José to St. Louis

When to book flights from San José to St. Louis

Are your dates flexible? Find out the best times to travel from San José to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San José to St. Louis

  • What is the cheapest flight from San José to St. Louis?

    In the last 5 days, the lowest price for a flight from San José to St. Louis was $278 for a one-way ticket and $444 for a round-trip.

  • Do I need a passport to fly between San José and St. Louis?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San José and on arrival in St. Louis.

  • Which airports will I be using when flying from San José to St. Louis?

    On your way to St. Louis, you’ll fly out from San José Juan Santamaria Intl. You’ll be landing at Lambert-St Louis.

  • Which aircraft models fly most regularly from San José to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San José to St. Louis?

    Star Alliance, and oneworld are the airline alliances operating flights between San José and St. Louis, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from San José to St. Louis, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from San José to St. Louis are United Airlines and American Airlines. With an average price for the route of $549 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $488 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from San José to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San José to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San José to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from San José is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San José to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to San José with another airline. Booking your flights between San José and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San José to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from San José up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from San José to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from San José to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San José to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10062 reviews
7.3Comfort
7.1Entertainment
6.7Food
8.1Crew
7.7Boarding
Airline reviews

Flight was delayed “due to earlier delays of that plane”, so we were nearly three hours late.

8.0 ExcellentTodd, Jul 2026
DEN - STL
Read more United Airlines reviews

Flight was delayed “due to earlier delays of that plane”, so we were nearly three hours late.

The flight to Houston the agents were not very helpful

Airport terminal was outdated, flight was on a small jet with no wifi

It was good, although we could not get our preferred seats, we did enjoy the whole experience from Costa Rica. I still don't understand why our luggage is not the first to come out at the band.

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

I love United was disappointed we had a two hour delay, however the Pilot did say safety first.

Since when do I have to pay for my checked bag? I have a United Explorer mileage plus silver card and I was charged for my checked bags. This also is an international flight. So I would like an explanation to be clear before I choose an airline please?

Boarding was terrible. My wife uses a wheel chair and she was in an incredibly hot closed metal cargo box for close to 20 minutes before getting on board

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

We called Kayak for a change due to the TSA situation in Atlanta. What we got was a canceled return flight (in error) and we had to find the mistake. Not happy with Kayak who blamed it on AA.

Small plane, poor meal choices for first class, bad terminal and boarding experience at LAX

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Improvements in communication and empathy are absolutely necessary for American Airlines staff (top down). It’s like they are numb to the needs of their customers.

I like the speed of boarding and deplaning and the fact that everything was on time. The crew (attendants) were probably quite new and did not begin the in cabin service until 30 min before landing even though there was little to no air turbulence for the last 1.5 hours of the flight. It made for a mad scramble at the end to get trash collected and carts stowed before touch down.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

I did like the employee's, they are very friendly and all smiled most of the time, Overall, from checking in bags to getting on plane, not enough employees to be able to get all on the plane, therefore I was not able to get on the plane, due to no one wea there for me to check in my bag, so I decided to go thru the security point and by the time they were done with my bags, I was told that my bag cannot be checked in, and then found out that the lady that does the check in was boarding the customers onto the plane, she said that she was going back and fourth, there for was not able to get on the plane, which changed all my flights by the time I got to Dallas, I was on standby 3 times, and wasn't sure about being able to get on the fourth plane, so ended up buying another plane ticket, so I could make my destination on time.

Not sure about entertainment as I didn't use any, so maybe there should be an NA option on this survey. Otherwise everything was just as it should be. Of course I wish planes were more comfortable and had seats that would tilt back further.

American Airlines “Randy” questioned why I needed preboarding and denied my request for same. Then Randy attempted to berate me when I boarded with my group. I was seated in an exit roll with a young man with a disability that exhibited difficulty controlling and settling himself. But Tandy questioned my disability. The flight was horrible. It was overpacked.

Everything you need to know for your flight from San José to St. Louis

Information on your arrival and departure airports