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Cheap flights from St. Louis to San José from $127

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 José departing on 11/4. 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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Find the cheapest flights from St. Louis to San José

Cheap round-trip flights

Delta Logo
9:00 am - 10:15 pmSTL-SJO
13h 15m1 stop
Delta Logo
7:00 am - 3:58 pmSJO-STL
8h 58m1 stop
$286Delta
Find Deal
Tue, Nov 18 - Tue, Nov 25
American Airlines Logo
6:10 am - 7:42 pmSTL-SJO
14h 32m2 stops
American Airlines Logo
6:00 am - 11:59 pmSJO-STL
16h 59m1 stop
$290American Airlines
Find Deal
Tue, Sep 23 - Thu, Sep 25
American Airlines Logo
8:40 am - 10:01 pmSTL-SJO
13h 21m1 stop
American Airlines Logo
11:35 am - 11:34 pmSJO-STL
11h 59m2 stops
$294American Airlines
Find Deal
Wed, Nov 26 - Thu, Dec 4
Spirit Airlines Logo
10:57 am - 11:30 amSTL-SJO
25h 33m1 stop
Spirit Airlines Logo
12:35 pm - 10:02 amSJO-STL
20h 27m1 stop
$317Spirit Airlines
Find Deal
Sun, Oct 19 - Sat, Oct 25
United Airlines Logo
6:15 am - 6:16 pmSTL-SJO
12h 01m1 stop
United Airlines Logo
6:30 am - 4:35 pmSJO-STL
10h 05m1 stop
$320United Airlines
Find Deal
Mon, Jan 12 - Sat, Jan 17
United Airlines Logo
6:15 am - 7:37 pmSTL-SJO
14h 22m1 stop
United Airlines Logo
7:55 am - 10:00 pmSJO-STL
13h 05m1 stop
$357United Airlines
Find Deal
Fri, Oct 10 - Tue, Oct 14
Logo
2:12 pm - 11:27 amSTL-SJO
21h 15m1 stop
Logo
2:20 am - 9:07 amSJO-STL
30h 47m2 stops
$447
Find Deal
Thu, Nov 6 - Mon, Nov 10
Logo
10:57 am - 3:13 pmSTL-SJO
29h 16m3 stops
Logo
7:30 am - 10:02 amSJO-STL
25h 32m2 stops
$455
Find Deal
Thu, Oct 9 - Mon, Oct 13
Southwest Logo
5:00 am - 1:15 pmSTL-SJO
8h 15m1 stop
Southwest Logo
2:15 pm - 11:35 pmSJO-STL
9h 20m1 stop
$492Southwest
Find Deal
Tue, Nov 25 - Mon, Dec 1
Spirit Airlines Logo
12:20 pm - 12:21 amSTL-SJO
12h 01m1 stop
Spirit Airlines Logo
1:16 am - 1:53 pmSJO-STL
12h 37m1 stop
$502Spirit Airlines
Find Deal
Thu, Jan 29 - Fri, Feb 6

Delta flights from St. Louis to San José, San José Province

Our best Delta deals on St. Louis to San José, San José Province flight tickets
Delta
Nov 18
STL9:00 amLambert-St Louis
13h 15m
1 stop
SJO10:15 pmSan José Juan Santamaria Intl
Nov 25
SJO7:00 amSan José Juan Santamaria Intl
8h 58m
1 stop
STL3:58 pmLambert-St Louis
$286
Find similar
Delta
Nov 27
STL8:30 amLambert-St Louis
13h 45m
1 stop
SJO10:15 pmSan José Juan Santamaria Intl
Dec 5
SJO7:00 amSan José Juan Santamaria Intl
16h 39m
1 stop
STL11:39 pmLambert-St Louis
$306
Find similar
Delta
Nov 27
STL8:30 amLambert-St Louis
13h 45m
1 stop
SJO10:15 pmSan José Juan Santamaria Intl
Dec 5
SJO7:00 amSan José Juan Santamaria Intl
11h 02m
1 stop
STL6:02 pmLambert-St Louis
$333
Find similar

American Airlines flights from St. Louis to San José, San José Province

Our best American Airlines deals on St. Louis to San José, San José Province flight tickets
American Airlines
Sep 23
STL6:10 amLambert-St Louis
14h 32m
2 stops
SJO7:42 pmSan José Juan Santamaria Intl
Sep 25
SJO6:00 amSan José Juan Santamaria Intl
16h 59m
1 stop
STL11:59 pmLambert-St Louis
$290
Find similar
American Airlines
Nov 26
STL8:40 amLambert-St Louis
13h 21m
1 stop
SJO10:01 pmSan José Juan Santamaria Intl
Dec 4
SJO11:35 amSan José Juan Santamaria Intl
11h 59m
2 stops
STL11:34 pmLambert-St Louis
$294
Find similar
American Airlines
Oct 19
STL8:05 pmLambert-St Louis
16h 55m
2 stops
SJO12:00 pmSan José Juan Santamaria Intl
Oct 25
SJO6:44 amSan José Juan Santamaria Intl
10h 45m
1 stop
STL6:29 pmLambert-St Louis
$310
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to San José, San José Province that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from St. Louis to San José, San José Province that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Tue 11/18

9:00 am-10:15 pm

1 stop13h 15m

San José Juan Santamaria Intl

Tue 11/25

7:00 am-3:58 pm

1 stop8h 58m

$286

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Tue 9/23

6:10 am-7:42 pm

2 stops14h 32m

San José Juan Santamaria Intl

Thu 9/25

6:00 am-11:59 pm

1 stop16h 59m

$290

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Wed 11/26

8:40 am-10:01 pm

1 stop13h 21m

San José Juan Santamaria Intl

Thu 12/4

11:35 am-11:34 pm

2 stops11h 59m

$294

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Sun 10/19

10:57 am-11:30 am

1 stop25h 33m

San José Juan Santamaria Intl

Sat 10/25

12:35 pm-10:02 am

1 stop20h 27m

$317

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Mon 1/12

6:15 am-6:16 pm

1 stop12h 01m

San José Juan Santamaria Intl

Sat 1/17

6:30 am-4:35 pm

1 stop10h 05m

$320

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Fri 10/10

6:15 am-7:37 pm

1 stop14h 22m

San José Juan Santamaria Intl

Tue 10/14

7:55 am-10:00 pm

1 stop13h 05m

$357

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Thu 11/6

2:12 pm-11:27 am

1 stop21h 15m

San José Juan Santamaria Intl

Mon 11/10

2:20 am-9:07 am

2 stops30h 47m

$447

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Thu 10/9

10:57 am-3:13 pm

3 stops29h 16m

San José Juan Santamaria Intl

Mon 10/13

7:30 am-10:02 am

2 stops25h 32m

$455

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Tue 11/25

5:00 am-1:15 pm

1 stop8h 15m

San José Juan Santamaria Intl

Mon 12/1

2:15 pm-11:35 pm

1 stop9h 20m

$492

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Thu 1/29

12:20 pm-12:21 am

1 stop12h 01m

San José Juan Santamaria Intl

Fri 2/6

1:16 am-1:53 pm

1 stop12h 37m

$502

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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How to get the cheapest flight ticket from St. Louis to San José, San José Province

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 typical price of a round-trip flight between St. Louis and San José, San José Province?

What is the cheapest month to fly to San José, San José Province?

The month of September is, on average, the cheapest month to fly to San José, San José Province from St. Louis, with most prices found around $475. If you’re not able to fly to San José, San José Province in September, then November is your next best option. Flight prices from St. Louis to San José, San José Province during November average around $502.

What is the cheapest day to depart on your flight to San José, San José Province?

The cheapest day to depart from St. Louis to San José, San José Province is on a Tuesday when prices can be found for as low as $519. The most expensive day to fly to San José, San José Province is Saturday, with ticket prices averaging around $687.

What is the cheapest time of day to depart on your flight to San José, San José Province?

In the evening is the cheapest time of day to fly from St. Louis to San José, San José Province when you can find flight prices for as low as $427. Flying to San José, San José Province in the evening is an ideal time because this is during off-peak travel hours. At noon is when there is more demand to fly to San José, San José Province, so prices are often more expensive at around $604 per ticket.

How far in advance should I book a flight to San José, San José Province?

You are more likely to see cheaper flights to San José, San José Province from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to San José, San José Province for around $604 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San José, San José Province from St. Louis for as low as $488 on momondo.

How have St. Louis to San José, San José Province flight prices changed over time?

As of August 2025, prices for St. Louis to San José, San José Province flights are approximately 39% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to San José, San José Province

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to San José, San José Province according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to San José, San José Province (STL to SJO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to San José, San José Province

Best Price Found

$127

Fastest flight time

6h 56m

Direct flights

None

Airports in San José, San José Province

1 airport
The best one-way flight to San José, San José Province from St. Louis in the past 72 hours is $127. The best round-trip flight deal from St. Louis to San José, San José Province found on momondo in the last 72 hours is $286.
The fastest flight from St. Louis to San José, San José Province takes 6h 56m
There are no direct flights from St. Louis to San José, San José Province. Popular non-direct route for this connection is Lambert-St Louis Airport - San José Juan Santamaria Intl Airport.
There is 1 airport near San José, San José Province: San José Juan Santamaria Intl (SJO)
Search flight deals

  • How far is Lambert-St Louis to San José Juan Santamaria Intl by plane?

    Lambert-St Louis and San José Juan Santamaria Intl are 2016.9 mi apart from one another. In terms of flight time, this usually takes a little over 6h 56m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to San José Juan Santamaria Intl Airport?

    Prices for flights from Lambert-St Louis Airport to San José Juan Santamaria Intl Airport are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to San José Juan Santamaria Intl Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to San José Juan Santamaria Intl 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 Lambert-St Louis Airport to San José Juan Santamaria Intl Airport.

  • What documentation or ID do you need to fly to San José Juan Santamaria Intl Airport?

    The travel and health documents you'll need for your trip to San José Juan Santamaria Intl Airport 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 José Juan Santamaria Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to San José, San José Province?

Best airlines flying from St. Louis to San José, San José Province

Compare and see reviews for airlines that fly from St. Louis to San José, San José Province with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $257Free CancellationRating
8.0
7,981 reviews
Search Delta flights
Spirit AirlinesPriceFrom $263Free CancellationRating
6.3
8,038 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $366Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $396Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
SouthwestPriceFrom $410Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Manuel Antonio
Jacó
Alajuela
Monteverde
Heredia
Dominical
Santa Elena
Esterillos Este

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to San José?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to San José. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to San José with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San José from St. Louis with this policy.

How can momondo help me find flights from St. Louis to San José?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to San José.

I’m not ready to book a flight from St. Louis to San José right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San José, momondo offers a useful price alert feature which will track prices for flights to San José from St. Louis and alert you when they change.

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