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

Currently priced at $278, Southwest will fly you from San José, San José Province to St. Louis and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $283 and $347, respectively. Users have found that Southwest is 42% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from San José, San José Province to St. Louis one-way?

The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $184. However, be on the lookout for offers from United Airlines and Spirit Airlines, as they are both options that can get you from San José, San José Province to St. Louis for a low price.

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

Travelers seeking maximum savings on their San José, San José Province to St. Louis flight should consider departing on Tuesday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest day to fly round-trip from San José, San José Province to St. Louis?

Monday is generally a great day to depart. Flying on this day could help you save up to 64%.

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

Users have found that booking a flight from San José, San José Province to St. Louis at least 29 days early can save you up to 80% on average compared to booking a flight this week. If booking 29 days before your flight isn’t an option for you, users have found flights from San José, San José Province to St. Louis for as little as $385 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $639 for flights departing within the next 3 days.

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

February can be a great time to fly to St. Louis from San José, San José Province with a flight ticket averaging about $485. Cheapflights users have found deals in the month of February for as cheap as $366. The most expensive prices can be found in the month of April.

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

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

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

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

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

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

$184+ Flights from San José to St. Louis

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1. Tell us where you want to go

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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 San José Juan Santamaria Intl to Lambert-St Louis are usually found in February or August, booked 76 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from San José to St. Louis

Round-trip from	$278 (Southwest)
One-way from	$184 (American Airlines)
Popular in	April
Cheapest in	February
Average price	$432

From San José Juan Santamaria Intl to Lambert-St Louis

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

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($72 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from San José to St. Louis

Cheapest flights from San José to St. Louis
Explore the most affordable flight options available from San José to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Wed 9/38:50 amSJO - STL

1 stop10h 10mSouthwest

Tue 10/145:30 amSTL - SJO

1 stop7h 35mSouthwest

Deal found 7/1

$278

Wed 9/37:27 amSJO - STL

2 stops14h 40mAmerican Airlines

Tue 10/148:49 amSTL - SJO

1 stop10h 27mAmerican Airlines

Deal found 7/3

$283

Thu 9/41:30 pmSJO - STL

2 stops23h 49mUnited Airlines

Thu 10/168:25 amSTL - SJO

1 stop12h 12mUnited Airlines

Deal found 7/3

$347

Wed 9/312:18 pmSJO - STL

1 stop20h 22mMultiple Airlines

Mon 10/132:22 pmSTL - SJO

1 stop23h 18mMultiple Airlines

Deal found 7/2

$398

Thu 9/41:35 pmSJO - STL

1 stop7h 27mDelta

Tue 10/146:00 amSTL - SJO

1 stop6h 48mDelta

Deal found 7/3

$409

Best flights from San José to St. Louis
Discover carefully curated flight deals from San José to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Wed 9/38:50 amSJO - STL

1 stop10h 10mSouthwest

Tue 10/145:30 amSTL - SJO

1 stop7h 35mSouthwest

Deal found 7/1

$278

Wed 9/37:27 amSJO - STL

2 stops14h 40mAmerican Airlines

Tue 10/147:53 pmSTL - SJO

2 stops17h 07mAmerican Airlines

Deal found 7/2

$283

Thu 9/47:55 amSJO - STL

2 stops30h 49mUnited Airlines

Thu 10/168:25 amSTL - SJO

1 stop12h 12mUnited Airlines

Deal found 7/3

$347

Wed 9/312:18 pmSJO - STL

1 stop20h 22mMultiple Airlines

Mon 10/132:22 pmSTL - SJO

1 stop23h 18mMultiple Airlines

Deal found 7/3

$398

Thu 9/41:35 pmSJO - STL

1 stop7h 27mDelta

Sun 10/126:00 amSTL - SJO

1 stop6h 48mDelta

Deal found 7/3

$409

Wed 9/312:18 pmSJO - STL

1 stop20h 22mSpirit Airlines

Mon 10/138:44 amSTL - SJO

2 stops51h 34mSpirit Airlines

Deal found 7/1

$502

Last-minute flights from San José to St. Louis
Discover last-minute flight deals from San José to St. Louis. Data last updated July 3, 2025 and is based on user searches.

Fri 7/1811:59 pmSJO - STL

1 stop17h 34mAmerican Airlines

Thu 7/319:26 amSTL - SJO

1 stop13h 39mAmerican Airlines

Deal found 7/3

$386

Fri 7/1811:24 amSJO - STL

2 stops26h 15mSpirit Airlines

Thu 7/3110:47 amSTL - SJO

2 stops25h 24mSpirit Airlines

Deal found 7/2

$543

Sat 8/161:35 pmSJO - STL

1 stop7h 27mDelta

Sat 8/306:00 amSTL - SJO

1 stop7h 10mDelta

Deal found 7/3

$459

Sat 8/167:30 amSJO - STL

1 stop15h 17mMultiple Airlines

Sat 8/303:02 pmSTL - SJO

2 stops25h 11mMultiple Airlines

Deal found 7/3

$466

Sun 8/317:55 amSJO - STL

2 stops30h 49mUnited Airlines

Sat 10/115:28 pmSTL - SJO

2 stops19h 58mUnited Airlines

Deal found 7/1

$368

One-way flights from San José to St. Louis
Search for one-way flight options from San José to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Wed 9/37:27 amSJO - STL

1 stop9h 56mAmerican Airlines

Deal found 7/3

$184

Tue 9/27:55 amSJO - STL

2 stops27h 30mUnited Airlines

Deal found 7/1

$187

Sat 8/3012:18 pmSJO - STL

1 stop20h 22mSpirit Airlines

Deal found 7/3

$207

Fri 9/512:23 pmSJO - STL

1 stop28h 47mVolaris

Deal found 7/2

$267

Thu 9/411:27 amSJO - STL

1 stop24h 40mMultiple Airlines

Deal found 7/2

$271

Sat 8/304:20 pmSJO - STL

2 stops16h 42mAvianca

Deal found 7/3

$348

Cheapflights Fare Finder

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

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 9/3

8:50 am-8:00 pm

1 stop10h 10m

Lambert-St Louis

Tue 10/14

5:30 am-12:05 pm

1 stop7h 35m

$278

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 9/3

7:27 am-11:07 pm

2 stops14h 40m

Lambert-St Louis

Tue 10/14

8:49 am-6:16 pm

1 stop10h 27m

$283

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 9/4

1:30 pm-10:08 pm

1 stop7h 38m

Lambert-St Louis

Thu 10/16

6:15 am-7:37 pm

1 stop14h 22m

$347

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 9/3

12:18 pm-9:40 am

1 stop20h 22m

Lambert-St Louis

Mon 10/13

2:22 pm-12:40 pm

1 stop23h 18m

$398

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Thu 9/4

1:35 pm-10:02 pm

1 stop7h 27m

Lambert-St Louis

Tue 10/14

6:00 am-11:48 am

1 stop6h 48m

$409

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 9/3

12:18 pm-9:40 am

1 stop20h 22m

Lambert-St Louis

Mon 10/13

8:44 am-11:18 am

2 stops51h 34m

$502

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Wed 9/3

7:27 am-8:15 pm

1 stop11h 48m

$184

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Tue 9/2

7:55 am-12:25 pm

2 stops27h 30m

$187

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Sat 8/30

12:18 pm-9:40 am

1 stop20h 22m

$207

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

Fri 9/5

12:23 pm-6:10 pm

1 stop28h 47m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 12 results

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from San José 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 San José to St. Louis

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

To ensure you get the cheapest price possible for a flight from San José, San José Province to St. Louis, you should look to book at least 74 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 San José, San José Province to St. Louis?

Currently, August is the cheapest month in which you can book a flight from San José, San José Province to St. Louis (average of $311). Flying from San José, San José Province to St. Louis in March is currently the most expensive (average of $356). 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 SJO to STL?

A simple way to save on the total cost of your ticket is to fly from San José, San José Province to St. Louis in the morning. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight in the afternoon.

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

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from San José to St. Louis, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Southwest

8.0

Very good

4,266 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Delta

8.0

Very good

7,982 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

United Airlines

7.4

Good

8,861 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Avianca

6.7

Okay

2,363 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

What are the cheapest airlines flying from San José, San José Province to St. Louis round-trip?
Currently priced at $278, Southwest will fly you from San José, San José Province to St. Louis and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $283 and $347, respectively. Users have found that Southwest is 42% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from San José, San José Province to St. Louis one-way?
The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $184. However, be on the lookout for offers from United Airlines and Spirit Airlines, as they are both options that can get you from San José, San José Province to St. Louis for a low price.
Can I find deals for flights from San José to St. Louis that include hotel bookings?
Yes. In addition to deals on San José to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San José to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San José to St. Louis.
Can I find deals for business class flights from San José to St. Louis?
Yes. Cheapflights offers flight deals from San José to St. Louis 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 San José, San José Province to St. Louis?
Currently, August is the cheapest month in which you can book a flight from San José, San José Province to St. Louis (average of $311). Flying from San José, San José Province to St. Louis in March is currently the most expensive (average of $356). 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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Collinsville

Eureka

St. Peters

Glencoe

Alton

Festus

Chesterfield

Farmington

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Top 2 airlines flying from San José to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$328	Average$454	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$334	Average$432	FlexibilityNo cancel fee	On-time71%

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$184+ Cheap flights from San José (SJO) to St. Louis (STL)

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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San José to St. Louis 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 San José Juan Santamaria Intl to Lambert-St Louis are usually found in February or August, booked 76 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from San José to St. Louis

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San José to St. Louis

Cheapest flights from San José to St. LouisExplore the most affordable flight options available from San José to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from San José to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

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

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

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from San José to St. Louis. Price data was last updated on June 27, 2025.

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

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

Find hourly flight availability from San José to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

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

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from San José to St. Louis, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

What are the cheapest airlines to fly from San José, San José Province to St. Louis one-way?

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

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

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

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

Traveling to a place near San José?

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Alternative routes for San José to St. Louis

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Top 2 airlines flying from San José to St. Louis

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Cheapest flights from San José to St. Louis
Explore the most affordable flight options available from San José to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.