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Cheap flights from San José to St. Louis from $270

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 José to St. Louis departing on 7/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San José to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:35 am - 11:59 pm
SJO
-
STL
13h 24m
1 stop
Multiple Airlines Logo
8:55 am - 10:00 pm
STL
-
SJO
14h 05m
1 stop
$514Multiple Airlines
Thu, Aug 13 - Tue, Aug 18
United Airlines Logo
7:55 am - 10:45 pm
SJO
-
STL
13h 50m
1 stop
United Airlines Logo
6:14 am - 10:39 pm
STL
-
SJO
17h 25m
1 stop
$569United Airlines
Fri, Jul 24 - Tue, Jul 28
United Airlines Logo
12:30 am - 9:26 pm
SJO
-
STL
19h 56m
2 stops
United Airlines Logo
6:14 am - 10:39 pm
STL
-
SJO
17h 25m
1 stop
$574United Airlines
Thu, Jul 23 - Tue, Jul 28
Air Canada Logo
7:10 am - 6:42 pm
SJO
-
STL
34h 32m
2 stops
Air Canada Logo
8:55 am - 8:20 pm
STL
-
SJO
12h 25m
2 stops
$577Air Canada
Sun, Aug 9 - Sun, Aug 30
United Airlines Logo
8:45 am - 10:06 pm
SJO
-
STL
13h 21m
1 stop
United Airlines Logo
11:00 am - 10:32 pm
STL
-
SJO
11h 32m
1 stop
$581United Airlines
Thu, Dec 24 - Thu, Dec 31
Multiple Airlines Logo
7:10 am - 8:22 pm
SJO
-
STL
12h 12m
1 stop
Multiple Airlines Logo
4:09 pm - 8:30 am
STL
-
SJO
17h 21m
1 stop
$589Multiple Airlines
Tue, Jul 21 - Fri, Jul 24
Multiple Airlines Logo
9:35 am - 11:59 pm
SJO
-
STL
13h 24m
1 stop
Multiple Airlines Logo
12:10 pm - 8:20 pm
STL
-
SJO
9h 10m
1 stop
$592Multiple Airlines
Sun, Aug 9 - Sun, Aug 30
American Airlines Logo
12:34 am - 5:10 pm
SJO
-
STL
16h 36m
1 stop
American Airlines Logo
5:05 am - 12:33 pm
STL
-
SJO
7h 28m
1 stop
$601American Airlines
Wed, Dec 23 - Thu, Dec 31
American Airlines Logo
1:31 pm - 8:35 am
SJO
-
STL
19h 04m
1 stop
American Airlines Logo
5:17 am - 2:29 pm
STL
-
SJO
9h 12m
1 stop
$602American Airlines
Thu, Dec 24 - Thu, Dec 31
American Airlines Logo
12:34 am - 5:10 pm
SJO
-
STL
16h 36m
1 stop
American Airlines Logo
5:05 am - 12:33 pm
STL
-
SJO
7h 28m
1 stop
$603American Airlines
Wed, Dec 23 - Thu, Dec 31

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JetBlue flights from San José to St. Louis

Our best JetBlue deals on San José to St. Louis flight tickets
JetBlue
Jul 6
SJO1:40 pmSan José Juan Santamaria Intl
10h 05m
1 stop
STL12:45 amLambert-St Louis
Jul 12
STL8:35 amLambert-St Louis
11h 05m
1 stop
SJO6:40 pmSan José Juan Santamaria Intl
$800
JetBlue
Jul 6
SJO8:45 amSan José Juan Santamaria Intl
13h 30m
1 stop
STL11:15 pmLambert-St Louis
Jul 12
STL8:55 pmLambert-St Louis
16h 50m
1 stop
SJO12:45 pmSan José Juan Santamaria Intl
$858

Air Canada flights from San José to St. Louis

Our best Air Canada deals on San José to St. Louis flight tickets
Air Canada
Aug 9
SJO7:10 amSan José Juan Santamaria Intl
34h 32m
2 stops
STL6:42 pmLambert-St Louis
Aug 30
STL8:55 amLambert-St Louis
12h 25m
2 stops
SJO8:20 pmSan José Juan Santamaria Intl
$577
Air Canada
Jul 21
SJO7:10 amSan José Juan Santamaria Intl
12h 12m
1 stop
STL8:22 pmLambert-St Louis
Jul 24
STL12:10 pmLambert-St Louis
34h 50m
2 stops
SJO10:00 pmSan José Juan Santamaria Intl
$605
Air Canada
Nov 25
SJO9:20 amSan José Juan Santamaria Intl
30h 06m
2 stops
STL3:26 pmLambert-St Louis
Nov 30
STL4:05 pmLambert-St Louis
30h 25m
1 stop
SJO10:30 pmSan José Juan Santamaria Intl
$680

momondo Fare Finder

 
Customize your flight search to find flights from San José to St. Louis 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 July 5, 2026.
Use the filters below to find and compare flights from San José to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 8/13

9:35 am-11:59 pm

1 stop13h 24m

Lambert-St Louis

Tue 8/18

8:55 am-10:00 pm

1 stop14h 05m

$514

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 7/24

7:55 am-10:45 pm

1 stop13h 50m

Lambert-St Louis

Tue 7/28

6:14 am-10:39 pm

1 stop17h 25m

$569

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 7/23

12:30 am-9:26 pm

2 stops19h 56m

Lambert-St Louis

Tue 7/28

6:14 am-10:39 pm

1 stop17h 25m

$574

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sun 8/9

7:10 am-6:42 pm

2 stops34h 32m

Lambert-St Louis

Sun 8/30

8:55 am-8:20 pm

2 stops12h 25m

$577

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 12/24

8:45 am-10:06 pm

1 stop13h 21m

Lambert-St Louis

Thu 12/31

11:00 am-10:32 pm

1 stop11h 32m

$581

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Tue 7/21

7:10 am-8:22 pm

1 stop12h 12m

Lambert-St Louis

Fri 7/24

4:09 pm-8:30 am

1 stop17h 21m

$589
Quickest round-trip

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sun 8/9

9:35 am-11:59 pm

1 stop13h 24m

Lambert-St Louis

Sun 8/30

12:10 pm-8:20 pm

1 stop9h 10m

$592

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 12/23

12:34 am-5:10 pm

1 stop16h 36m

Lambert-St Louis

Thu 12/31

5:05 am-12:33 pm

1 stop7h 28m

$601

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 12/24

1:31 pm-8:35 am

1 stop19h 04m

Lambert-St Louis

Thu 12/31

5:17 am-2:29 pm

1 stop9h 12m

$602

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 12/23

12:34 am-5:10 pm

1 stop16h 36m

Lambert-St Louis

Thu 12/31

5:05 am-12:33 pm

1 stop7h 28m

$603

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from San José 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 typical price of a round-trip flight between San José and St. Louis?

What is the cheapest month to fly to St. Louis?

In general, October is the cheapest month to fly from San José to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. The month of September is another great option to travel to St. Louis, with average flight prices from San José averaging around $437.

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

As of July 2026, prices for San José to St. Louis flights are approximately 49% more expensive when compared to flights at the same time last year.

When to book flights from San José to St. Louis

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

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

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

Fastest flight time

12h 38m

Direct flights

None
The fastest flight from San José to St. Louis takes 12h 38m
There are no direct flights from San José to St. Louis. There are no popular flight routes from San José to St. Louis.
Search flight deals

Frequently asked questions about flying from San José to St. Louis

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

    The straight-line distance from San José Juan Santamaria Intl to Lambert-St Louis is 2016.9 mi. Typically, this will take 12h 38m by plane in normal conditions.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San José Juan Santamaria Intl Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from San José to St. Louis

Compare and see reviews for airlines that fly from San José to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $274Free CancellationRating
7.1
11,777 reviews
Search American Airlines flights
United AirlinesPriceFrom $396Free CancellationRating
7.4
9,933 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Fenton
Farmington
Wentzville
Clayton
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San José to St. Louis for you.

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

Yes. momondo allows you to filter the results for San José to St. Louis flights to just show those with flexible booking policies.

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

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 San José to St. Louis.

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

Price alerts on flights to St. Louis from San José 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.

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