How long is the flight from St. Louis to San José?

Departing from St. Louis to San José will take you 16h. St. Louis and San José are separated by a distance of 2022 mi.

What are the cheapest airlines flying from St. Louis to San José round-trip?

Delta, at $209, was found to be the cheapest airline from St. Louis to San José.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Delta is priced at 64% lower than the current average price of a flight leaving 3 months from now.

In terms of precipitation, rainfall in San José ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit San José when rainfall is around 0.0 in.

If weather is an important factor for your trip to San José, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

What are the most popular airlines that fly from St. Louis to San José?

When booking a flight from St. Louis to San José, you may want to consider flying on American Airlines, United Airlines or Southwest as they are the most popular for this route.

Most accurate provider : When it comes to deals on St. Louis-San José flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-San José flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-San José flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-San José flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-San José flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from St. Louis to San José that include hotel bookings?

Yes. In addition to deals on St. Louis to San José flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to San José?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to San José.

Can I find deals for business class flights from St. Louis to San José?

Yes. Cheapflights offers flight deals from St. Louis to San José by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$183+ Flights from St. Louis to San José

Q: How much does it cost to fly round-trip from St. Louis to San José?

Airfare is below average for this route at the moment. St. Louis to San José flights typically cost between $587 and $1,515 in January. The cheapest round-trip price found within the last 3 days was $293 on Multiple Airlines (Jan 6-Jan 11).

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Lambert-St Louis to San José Juan Santamaria Intl are usually found in October or September, booked 43 days in advance, depart on a Tuesday or Sunday and return on a Tuesday

Cheap flight deals from St. Louis to San José

Cheapest flights from St. Louis to San José
Explore the most affordable flight options available from St. Louis to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Sun 12/1411:34 amSTL - SJO

1 stop11h 25mAmerican Airlines

Mon 12/2212:34 amSJO - STL

1 stop8h 22mAmerican Airlines

Deal found 12/11

$446

Sat 12/136:00 amSTL - SJO

1 stop7h 06mDelta

Tue 12/232:21 pmSJO - STL

1 stop9h 21mDelta

Deal found 12/11

$456

Thu 12/1810:42 amSTL - SJO

2 stops46h 39mMultiple Airlines

Thu 12/2512:39 pmSJO - STL

1 stop9h 54mMultiple Airlines

Deal found 12/10

$515

Sat 12/135:30 pmSTL - SJO

1 stop20h 36mAmerican Airlines

Tue 12/236:20 amSJO - STL

2 stops13h 02mAmerican Airlines

Deal found 12/11

$537

Sat 12/131:35 pmSTL - SJO

1 stop8h 25mUnited Airlines

Mon 12/158:45 amSJO - STL

1 stop13h 13mUnited Airlines

Deal found 12/9

$544

Mon 12/2210:10 pmSTL - SJO

2 stops37h 32mMultiple Airlines

Wed 1/712:39 pmSJO - STL

1 stop9h 54mMultiple Airlines

Deal found 12/11

$547

Thu 12/1810:42 amSTL - SJO

1 stop27h 00mFrontier

Wed 12/242:52 pmSJO - STL

1 stop18h 48mFrontier

Deal found 12/10

$566

Sun 12/2110:57 amSTL - SJO

2 stops24h 45mMultiple Airlines

Wed 1/712:39 pmSJO - STL

1 stop9h 54mMultiple Airlines

Deal found 12/11

$568

Best flights from St. Louis to San José
Discover carefully curated flight deals from St. Louis to San José that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Sat 1/35:55 amSTL - SJO

1 stop16h 00mDelta

Thu 1/152:31 pmSJO - STL

1 stop9h 08mDelta

Deal found 12/10

$390

Wed 3/46:00 amSTL - SJO

1 stop14h 39mUnited Airlines

Thu 3/511:28 pmSJO - STL

2 stops23h 31mUnited Airlines

Deal found 12/9

$474

Tue 3/36:00 amSTL - SJO

1 stop16h 02mDelta

Mon 3/97:00 amSJO - STL

1 stop15h 42mDelta

Deal found 12/9

$428

Tue 1/67:10 amSTL - SJO

1 stop15h 05mDelta

Wed 1/147:00 amSJO - STL

1 stop16h 39mDelta

Deal found 12/10

$430

Wed 3/47:41 amSTL - SJO

2 stops12h 12mUnited Airlines

Fri 3/612:35 pmSJO - STL

2 stops23h 52mUnited Airlines

Deal found 12/11

$474

Tue 3/38:21 amSTL - SJO

2 stops11h 32mUnited Airlines

Fri 3/68:45 amSJO - STL

2 stops27h 42mUnited Airlines

Deal found 12/9

$474

Sun 3/17:10 amSTL - SJO

1 stop14h 52mDelta

Fri 3/67:00 amSJO - STL

1 stop10h 42mDelta

Deal found 12/11

$448

Mon 3/26:45 pmSTL - SJO

2 stops18h 30mUnited Airlines

Fri 3/62:20 pmSJO - STL

2 stops22h 07mUnited Airlines

Deal found 12/11

$474

Sun 3/17:10 amSTL - SJO

1 stop14h 52mDelta

Mon 3/97:00 amSJO - STL

1 stop15h 42mDelta

Deal found 12/11

$448

Sun 3/16:00 amSTL - SJO

1 stop14h 39mUnited Airlines

Wed 3/411:28 pmSJO - STL

2 stops21h 32mUnited Airlines

Deal found 12/11

$474

Thu 3/57:10 amSTL - SJO

1 stop14h 52mDelta

Mon 3/97:00 amSJO - STL

1 stop15h 42mDelta

Deal found 12/9

$448

Last-minute flights from St. Louis to San José
Discover last-minute flight deals from St. Louis to San José. Data last updated December 12, 2025 and is based on user searches.

Tue 1/65:11 pmSTL - SJO

2 stops20h 37mMultiple Airlines

Sun 1/1112:33 pmSJO - STL

1 stop19h 32mMultiple Airlines

Deal found 12/10

$293

Tue 1/65:11 pmSTL - SJO

1 stop18h 31mMultiple Airlines

Tue 1/1312:33 pmSJO - STL

2 stops18h 18mMultiple Airlines

Deal found 12/10

$306

Tue 1/65:11 pmSTL - SJO

1 stop18h 31mMultiple Airlines

Wed 1/141:30 pmSJO - STL

2 stops33h 04mMultiple Airlines

Deal found 12/10

$316

Tue 1/65:11 pmSTL - SJO

1 stop18h 31mMultiple Airlines

Mon 1/122:58 pmSJO - STL

2 stops31h 36mMultiple Airlines

Deal found 12/10

$325

Wed 1/75:11 pmSTL - SJO

2 stops19h 11mMultiple Airlines

Sun 1/1112:33 pmSJO - STL

1 stop19h 32mMultiple Airlines

Deal found 12/10

$301

Thu 1/85:11 pmSTL - SJO

1 stop18h 26mMultiple Airlines

Tue 1/1312:33 pmSJO - STL

2 stops18h 18mMultiple Airlines

Deal found 12/10

$318

Thu 1/85:11 pmSTL - SJO

1 stop18h 26mMultiple Airlines

Sun 1/1112:33 pmSJO - STL

1 stop19h 32mMultiple Airlines

Deal found 12/10

$321

Fri 1/93:43 pmSTL - SJO

1 stop20h 31mMultiple Airlines

Tue 1/1312:33 pmSJO - STL

2 stops18h 18mMultiple Airlines

Deal found 12/10

$297

Fri 1/93:43 pmSTL - SJO

1 stop20h 31mMultiple Airlines

Sun 1/1112:33 pmSJO - STL

1 stop19h 32mMultiple Airlines

Deal found 12/10

$299

Fri 1/93:43 pmSTL - SJO

1 stop20h 31mFrontier

Mon 1/122:58 pmSJO - STL

2 stops31h 36mFrontier

Deal found 12/10

$315

Mon 1/125:11 pmSTL - SJO

1 stop18h 26mMultiple Airlines

Sat 1/173:12 pmSJO - STL

2 stops17h 59mMultiple Airlines

Deal found 12/10

$327

One-way flights from St. Louis to San José
Search for one-way flight options from St. Louis to San José. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Mon 1/510:10 pmSTL - SJO

2 stops39h 38mFrontier

Deal found 12/10

$183

Sun 1/46:00 amSTL - SJO

1 stop14h 14mAmerican Airlines

Deal found 12/10

$189

Mon 1/54:27 pmSTL - SJO

1 stop19h 15mMultiple Airlines

Deal found 12/10

$194

Fri 1/168:32 pmSTL - SJO

1 stop17h 10mFrontier

Deal found 12/10

$213

Sun 1/46:00 amSTL - SJO

1 stop14h 39mUnited Airlines

Deal found 12/9

$219

Sun 1/411:51 amSTL - SJO

2 stops23h 51mSpirit Airlines

Deal found 12/9

$244

Fri 12/194:27 pmSTL - SJO

1 stop16h 54mFrontier

Deal found 12/9

$277

Sun 1/410:10 pmSTL - SJO

3 stops37h 32mMultiple Airlines

Deal found 12/9

$295

Find flight deals from St. Louis to San José

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$293 (Kiwi.com)
One-way from	$183 (Kiwi.com)
Popular in	December
Cheapest in	October
Average price	$1,154

Provider with most accurate pricing for Lambert-St Louis-San José Juan Santamaria Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Lambert-St Louis-San José Juan Santamaria Intl flights.

Search Deals

From Lambert-St Louis to San José Juan Santamaria Intl

Search Deals

One-way flight from Lambert-St Louis to San José Juan Santamaria Intl

Search Deals

Highest demand for flights based on searches. 19% potential increase in price ($142 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 9% potential price decrease ($51 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to San José that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Sat 1/3

5:55 am-9:55 pm

1 stop16h 00m

San José Juan Santamaria Intl

Thu 1/15

2:31 pm-11:39 pm

1 stop9h 08m

$390

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Tue 3/3

6:00 am-10:02 pm

1 stop16h 02m

San José Juan Santamaria Intl

Mon 3/9

7:00 am-11:42 pm

1 stop15h 42m

$428

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Tue 1/6

7:10 am-10:15 pm

1 stop15h 05m

San José Juan Santamaria Intl

Wed 1/14

7:00 am-11:39 pm

1 stop16h 39m

$430

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Sun 3/1

7:10 am-10:02 pm

1 stop14h 52m

San José Juan Santamaria Intl

Fri 3/6

7:00 am-5:42 pm

1 stop10h 42m

$448

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Sun 3/1

7:10 am-10:02 pm

1 stop14h 52m

San José Juan Santamaria Intl

Mon 3/9

7:00 am-11:42 pm

1 stop15h 42m

$448

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Thu 3/5

7:10 am-10:02 pm

1 stop14h 52m

San José Juan Santamaria Intl

Mon 3/9

7:00 am-11:42 pm

1 stop15h 42m

$448

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Wed 3/4

6:00 am-8:39 pm

1 stop14h 39m

San José Juan Santamaria Intl

Thu 3/5

11:28 pm-10:59 pm

2 stops23h 31m

$474

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Wed 3/4

7:41 am-7:53 pm

2 stops12h 12m

San José Juan Santamaria Intl

Fri 3/6

12:35 pm-12:27 pm

2 stops23h 52m

$474

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Tue 3/3

8:21 am-7:53 pm

2 stops11h 32m

San José Juan Santamaria Intl

Fri 3/6

8:45 am-12:27 pm

2 stops27h 42m

$474

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

Mon 3/2

6:45 pm-1:15 pm

2 stops18h 30m

San José Juan Santamaria Intl

Fri 3/6

2:20 pm-12:27 pm

2 stops22h 07m

$474

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 19 results

Compare providers for flights from St. Louis to San José

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to San José in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on St. Louis-San José flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-San José flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-San José flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-San José flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-San José flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to San José

Have a flexible travel schedule? Discover the best time to fly to San José from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from St. Louis to San José?

To ensure you get the cheapest price possible for a flight from St. Louis to San José, you should look to book at least 43 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from St. Louis to San José?

Currently, February is the cheapest month in which you can book a flight from St. Louis to San José (average of $321). Flying from St. Louis to San José in December is currently the most expensive (average of $460). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to SJO?

When flying from St. Louis to San José, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 29% versus a flight at noon.

How much does it cost to fly round-trip from St. Louis to San José?

Reviews of airlines servicing San José

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from St. Louis to San José to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

7.9

Good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Southwest

7.9

Good

4,253 reviews

Southwest

7.9

Good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Delta

7.9

Good

8,008 reviews

Southwest

7.9

Good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

United Airlines

7.4

Good

9,095 reviews

Southwest

7.9

Good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

American Airlines

7.2

Good

11,050 reviews

Southwest

7.9

Good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

How long is the flight from St. Louis to San José?
Departing from St. Louis to San José will take you 16h. St. Louis and San José are separated by a distance of 2022 mi.
What are the cheapest airlines flying from St. Louis to San José round-trip?
Delta, at $209, was found to be the cheapest airline from St. Louis to San José.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Delta is priced at 64% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for flights from St. Louis to San José that include hotel bookings?
Yes. In addition to deals on St. Louis to San José flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to San José?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to San José.
Can I find deals for business class flights from St. Louis to San José?
Yes. Cheapflights offers flight deals from St. Louis to San José by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to San José?
Currently, February is the cheapest month in which you can book a flight from St. Louis to San José (average of $321). Flying from St. Louis to San José in December is currently the most expensive (average of $460). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alajuela

Monteverde

Jacó

Heredia

Dominical

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Alternative routes for St. Louis to San José

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Other flights to San José

Top 4 airlines flying from St. Louis to San José

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$257	Average$556	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$336	Average$566	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$383	Average$662	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$386	Average$548	FlexibilityNo cancel fee	On-time69%

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$183+ Cheap flights from St. Louis (STL) to San José (SJO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to San José with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Lambert-St Louis to San José Juan Santamaria Intl are usually found in October or September, booked 43 days in advance, depart on a Tuesday or Sunday and return on a Tuesday

Cheap flight deals from St. Louis to San José

Cheapest flights from St. Louis to San JoséExplore the most affordable flight options available from St. Louis to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Explore the most affordable flight options available from St. Louis to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Find flight deals from St. Louis to San José

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to San José that are best for you.

Compare providers for flights from St. Louis to San José

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to San José in December.

Best time to book a flight from St. Louis to San José

Have a flexible travel schedule? Discover the best time to fly to San José from St. Louis with our price prediction graph.

Cheapflights Insights

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

How far ahead should I book a flight from St. Louis to San José?

What is the cheapest month to book a flight from St. Louis to San José?

What is the cheapest time of day to fly from STL to SJO?

How much does it cost to fly round-trip from St. Louis to San José?

Reviews of airlines servicing San José

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from St. Louis to San José to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to San José. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from St. Louis to San José?

What are the cheapest airlines flying from St. Louis to San José round-trip?

Can I find deals for flights from St. Louis to San José that include hotel bookings?

How can I find direct flights from St. Louis to San José?

Can I find deals for business class flights from St. Louis to San José?

What is the cheapest month to book a flight from St. Louis to San José?

Traveling to a place near San José?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to San José

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from St. Louis to San José

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Cheapest flights from St. Louis to San José
Explore the most affordable flight options available from St. Louis to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.