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STL - SJO

Find cheap flights from St. Louis to San José from $83

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to San José departing on 6/2. 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
0 bags
Wed 6/12
Wed 6/19

Search hundreds of travel sites at once for deals on flights to San José

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to San José.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to San José.
In the last 7 days travelers have searched 41,771,603 times on KAYAK, and here is why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to San José 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 and deals for you by selecting your travel dates.
Choose your dates
2:35 pm - 12:04 amSTL-SJO
10h 29m2 stops
12:59 am - 5:28 pmSJO-STL
15h 29m1 stop
$236Spirit Airlines
Find Deal
Tue, May 28 - Wed, Jun 5
2:35 pm - 12:47 pmSTL-SJO
23h 12m1 stop
12:59 am - 5:28 pmSJO-STL
15h 29m1 stop
$244Spirit Airlines
Find Deal
Tue, May 28 - Wed, Jun 5
8:13 am - 12:09 amSTL-SJO
16h 56m2 stops
12:32 pm - 5:28 pmSJO-STL
27h 56m1 stop
Wed, Jun 5 - Wed, Jun 12
5:55 am - 10:14 pmSTL-SJO
17h 19m2 stops
12:50 pm - 8:33 amSJO-STL
18h 43m2 stops
$345American Airlines
Find Deal
Tue, Jun 4 - Thu, Jun 6
6:00 am - 10:35 pmSTL-SJO
17h 35m2 stops
11:59 pm - 10:02 pmSJO-STL
21h 03m2 stops
$347American Airlines
Find Deal
Wed, Jun 5 - Wed, Jun 12
6:15 am - 10:39 pmSTL-SJO
17h 24m1 stop
7:55 am - 10:15 pmSJO-STL
13h 20m1 stop
$372United Airlines
Find Deal
Tue, May 28 - Thu, Jun 6
5:31 pm - 10:03 amSTL-SJO
17h 32m2 stops
7:55 am - 3:39 pmSJO-STL
30h 44m2 stops
$391United Airlines
Find Deal
Tue, May 28 - Thu, Jun 6
1:55 pm - 12:09 amSTL-SJO
35h 14m3 stops
4:55 pm - 5:28 pmSJO-STL
23h 33m2 stops
Wed, Jun 5 - Wed, Jun 12
7:32 pm - 8:00 pmSTL-SJO
25h 28m2 stops
12:50 am - 11:59 pmSJO-STL
22h 09m2 stops
$1,147Alaska Airlines
Find Deal
Thu, Aug 1 - Tue, Aug 6
7:32 pm - 8:00 pmSTL-SJO
25h 28m2 stops
12:50 am - 1:20 pmSJO-STL
35h 30m2 stops
$1,364Alaska Airlines
Find Deal
Fri, Jul 12 - Wed, Jul 17

Flights from St. Louis to San José - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from St. Louis to San José?

The average price of all flights from St. Louis to San José, San José Province clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to San José on a Tuesday and more expensive on a Friday. On your return trip to St. Louis, you should consider flying back on a Tuesday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to San José, San José Province, 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 St. Louis to San José, San José Province is September, where tickets cost $441 on average. On the other hand, the most expensive months are December and March, where the average cost of tickets is $734 and $713 respectively.

How far in advance should I book a flight from St. Louis to San José, San José Province?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to San José, San José Province, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to San José, San José Province, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 58 days before departure.

Which airlines provide the cheapest flights from St. Louis to San José?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from St. Louis to San José found on KAYAK was with Spirit Airlines for $83. Spirit Airlines proposed a round-trip connection from $236 and American Airlines from $345.

Good to know

Low season

April

High season

June

Cheapest flight

$83
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from St. Louis to San José

When to book flights from St. Louis to San José

Are your dates flexible? Find out the best times to travel from St. Louis to San José 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 St. Louis to San José

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

    In the last 3 days, the lowest price for a flight from St. Louis to San José, San José Province was $83 for a one-way ticket and $236 for a round-trip.

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from St. Louis to San José are Alaska Airlines and United Airlines. With an average price for the route of $762 and an overall rating of 8.0, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $663 and an overall rating of 7.4.

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

    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 St. Louis to San José.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San José from St. Louis 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 St. Louis to San José?

    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 San José with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and SJO 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 St. Louis to San José?

    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 San José from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from St. Louis to San José

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to San José. 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 St. Louis to San José? 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.
8.0
DeltaOverall score based on 10736 reviews
8.6Crew
8.2Boarding
8.0Entertainment
7.4Food
7.9Comfort
Airline reviews

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

2.0 MediocreDevan, May 2024AUS - BOS
Read more about Delta reviews

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Best airline! Always friendly and welcoming. Skyclub was great and loved the fast free wifi on board. I also love that you can pre-order your meal on the app!

Atlanta boarding crew at gate were filled with arrogance and were disrespectful. In flight crew showed indifference to the needs of passengers. This is about the flight from ATL to BDL.

The plane was FREEZING SEATS UNCOMFORTABLE Otherwise smooth Thank you

Boarding was chaotic. I didn’t finish dinner because I went to bed early. Breakfast omelet was overcooked and tasteless but croissant was better than usual. Plane was dirty—crumbs in every seam and lavatory was poorly maintained (paint peeling, etc.) and toilet paper had not been refreshed before takeoff. No cubby for storage in first and seat was narrow.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

West Jet has a horrible boarding process and the seats have no cushion.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Not a fan of the diagonal partially enclosed business class seats or how they have to be converted to beds manually by crew. I prefer more isolation and user control for switching to lie flat.

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Energetic crew - flight full of swiftied going to Taylor's opening show in Paris! Long lines for bathroom made out kind of suck though

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Flight was delayed 2.5 hours - a big deal on an overnight when you plan to sleep.

I feel like they have upgraded the app since I last flew United and I found it to be super helpful. I had stopped flying United unless absolutely necessary and my experience on this trip indicates they have been working hard to improve their services.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Liked - nothing. Disliked - delayed 35+ min sitting on the plane. Caused me to miss my connection in Charlotte. American Airlines is the worst US Air Carrier company with atrocious customer service.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. Very comfortable business seats with nice bedding. Good food. We were delayed to let late passengers on the flight, but otherwise great experience.

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

They canceled the flight on us very close to the flight date .

It took 66 hours to get from Seattle to Tel Aviv. As a minor, I was left for more than 12 hours in Toronto and Frankfurt without hotel and food vouchers. It took 5 layovers. It was insane and not okay

It was delayed but got us to YYZ. I had great copassengers.

Flew SEA-CA, then CA-NRT. First flight was short but very uncomfortable, dirty, and had very small overhead storage space. The seats and fans were not cleaned and had visible dirt on them. Second flight was perfect.

My second flight ended up being through United and it was fine. Again, just frustrating that it was so late.

My experience was pretty frustrating because the first leg of my flight on United (though booked through Air Canada) was delayed causing me to miss my connecting flight on Air Canada. This could have been an easy solve as there was a direct flight later that morning via Air Canada that they easily could have put me on which would have only gotten me to my destination 2 1/2 hours later but because United and Air Canada don’t seem to have good communication they gave me the run around both telling me to talk with the other which I did three times to no avail. I ended up taking the delayed flight and getting on a new connecting flight which ended up getting me to my destination 6 hours later and I missed the event I was planning to go to this evening.

Everything went smoothly and as expected. We were on time and one flight arrived early.

First time flying Air Canada and the trip was very pleasant! They did a great job getting us out of Toronto and into Rome (early!) For an international flight it was very enjoyable.

This is not a Business Class equipped airplane and even the crew apologize before take over BUT BUT Air Canada charged full business class fare

All was good, except our baggage was lost for most of a day. We are thankful that it was found quickly and delivered to our hotel. Rouge was fine outside of that problem.

They stuck us with multiple extra fees. I will never fly spirit again

Arrived 3 hours early and never made it past baggage drop

Flight delayed then canceled! I will NEVER fly Spirit Airlines again and will tell all my friends!

Absolutely terrible. The boarding process had zero organization. Mobs of people trying to board. People were climbing over my child's stroller with her in it. No families were boarded first. Boarding was delayed with no reasoning or notification that it would be late. We were then stuck on the plane for 45 minutes after landing. Then waited over two hours for our luggage. There was zero communication with the travelers. Never have I experienced such I professionalism and disgrace of others. Extremely disappointed.

For it to have left on time! Instead of two hours early with zero notice

Flight kept delayed from morning to late afternoon so I had to make other arrangements

Crew was nice, explained emergency protocol very well. Flight took off and arrived on time. Pilot explained the small delay that occurred with docking and providing updates. I would definitely fly spirit again.

Terrible… missed our flight due to ridiculously long time to go thru baggage check-in!

The crew was not great or professional. It seemed like they didn't really want to be there. A true lack of effort for accommodating customers.

Everything was really good but the seats are not very comfortable.

Book cheap flights from St. Louis to San José

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to San José found on KAYAK in the last 72 hours.
6/2Sun
1 stopSpirit Airlines
6h 45mSTL-SJO
$83
5/30Thu
2 stopsSpirit Airlines
17h 02mSTL-SJO
$111
5/30Thu
1 stopSpirit Airlines
14h 51mSTL-SJO
$112
5/26Sun
1 stopSpirit Airlines
14h 51mSTL-SJO
$129
7/1Mon
1 stopUnited Airlines
18h 00mSTL-SJO
$199
7/1Mon
2 stopsAmerican Airlines
14h 00mSTL-SJO
$205
5/26Sun
3 stops
33h 01mSTL-SJO
$211
5/31Fri
1 stopUnited Airlines
17h 24mSTL-SJO
$230
5/31Fri
2 stopsAmerican Airlines
11h 48mSTL-SJO
$284
7/1Mon
3 stops
28h 47mSTL-SJO
$318

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Last minute flights from St. Louis to San José

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to San José that are departing in the next 10 days.
5/14Tue
multi-stopSpirit Airlines
19h 46mSTL-SJO
5/23Thu
multi-stopSpirit Airlines
7h 29mSJO-STL
$514
5/14Tue
multi-stopSpirit Airlines
19h 46mSTL-SJO
5/25Sat
multi-stopSpirit Airlines
27h 58mSJO-STL
$522
5/14Tue
multi-stopSpirit Airlines
10h 29mSTL-SJO
5/23Thu
multi-stopSpirit Airlines
7h 29mSJO-STL
$535
5/15Wed
multi-stopUnited Airlines
9h 27mSTL-SJO
5/25Sat
multi-stopUnited Airlines
7h 30mSJO-STL
$549
5/14Tue
multi-stopSpirit Airlines
19h 46mSTL-SJO
5/24Fri
multi-stopSpirit Airlines
14h 26mSJO-STL
$551
5/15Wed
multi-stopUnited Airlines
14h 37mSTL-SJO
5/25Sat
multi-stopUnited Airlines
7h 30mSJO-STL
$554
5/14Tue
multi-stopSpirit Airlines
19h 46mSTL-SJO
5/22Wed
multi-stopSpirit Airlines
16h 41mSJO-STL
$557
5/14Tue
multi-stopUnited Airlines
33h 27mSTL-SJO
5/25Sat
multi-stopUnited Airlines
27h 38mSJO-STL
$573
5/14Tue
multi-stopSpirit Airlines
10h 29mSTL-SJO
5/22Wed
multi-stopSpirit Airlines
16h 41mSJO-STL
$578
5/14Tue
multi-stopAmerican Airlines
8h 46mSTL-SJO
5/23Thu
multi-stopAmerican Airlines
12h 15mSJO-STL
$608

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St. Louis - San José Flights

Departure:

St. Louis (undefined)United States

Destination:

San José (SJO)Costa Rica

Return flight deals:

San José - St. Louis

Cabin classes: