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

Currently priced at $253, American Airlines will fly you from San José, San José Province to St. Louis and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Southwest - these airlines can fly you to your destination from $326 and $335, respectively. Users have found that American Airlines is 47% 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 United Airlines, with whom users have recently found tickets for as low as $187. However, be on the lookout for offers from Spirit Airlines and American 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.

$187+ Flights from San José to St. Louis

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1. Tell us where you want to go

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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	$253 (American Airlines)
One-way from	$187 (United 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

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

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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 julio 7, 2025.

jue. 9/41:30 pmSJO - STL

1 stop19h 31mUnited Airlines

mar. 10/146:15 amSTL - SJO

1 stop14h 22mUnited Airlines

Deal found 7/7

$326

mié. 9/38:50 amSJO - STL

1 stop10h 10mSouthwest

mar. 10/145:05 amSTL - SJO

1 stop7h 35mSouthwest

Deal found 7/7

$335

mié. 9/36:00 amSJO - STL

2 stops14h 10mAmerican Airlines

mar. 10/147:01 amSTL - SJO

1 stop12h 15mAmerican Airlines

Deal found 7/7

$340

sáb. 8/211:24 amSJO - STL

1 stop11h 23mMultiple Airlines

jue. 9/410:35 amSTL - SJO

1 stop25h 39mMultiple Airlines

Deal found 7/4

$403

lun. 8/412:16 pmSJO - STL

1 stop27h 15mSpirit Airlines

jue. 8/2810:37 amSTL - SJO

1 stop25h 35mSpirit Airlines

Deal found 7/7

$411

sáb. 9/61:35 pmSJO - STL

1 stop7h 27mDelta

lun. 10/136:00 amSTL - SJO

1 stop6h 48mDelta

Deal found 7/7

$438

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 julio 7, 2025.

mié. 9/37:27 amSJO - STL

1 stop9h 56mAmerican Airlines

mar. 10/145:20 amSTL - SJO

1 stop13h 56mAmerican Airlines

Deal found 7/7

$253

jue. 9/47:55 amSJO - STL

2 stops30h 49mUnited Airlines

dom. 10/126:15 amSTL - SJO

1 stop14h 22mUnited Airlines

Deal found 7/7

$326

mié. 9/38:50 amSJO - STL

1 stop10h 10mSouthwest

mar. 10/145:05 amSTL - SJO

1 stop7h 35mSouthwest

Deal found 7/7

$335

sáb. 8/211:24 amSJO - STL

1 stop11h 23mMultiple Airlines

jue. 9/410:35 amSTL - SJO

1 stop25h 39mMultiple Airlines

Deal found 7/4

$403

lun. 8/412:16 pmSJO - STL

1 stop27h 15mSpirit Airlines

jue. 8/2810:37 amSTL - SJO

1 stop25h 35mSpirit Airlines

Deal found 7/7

$411

sáb. 9/61:35 pmSJO - STL

1 stop7h 27mDelta

lun. 10/136:00 amSTL - SJO

1 stop6h 48mDelta

Deal found 7/7

$438

Last-minute flights from San José to St. Louis
Discover last-minute flight deals from San José to St. Louis. Data last updated julio 7, 2025 and is based on user searches.

jue. 7/1712:50 amSJO - STL

2 stops22h 09mAlaska Airlines

jue. 7/317:32 pmSTL - SJO

2 stops28h 58mAlaska Airlines

Deal found 7/6

$1,325

vie. 7/1811:59 pmSJO - STL

1 stop10h 57mAmerican Airlines

jue. 7/317:03 amSTL - SJO

1 stop16h 02mAmerican Airlines

Deal found 7/6

$386

sáb. 8/211:24 amSJO - STL

1 stop11h 23mMultiple Airlines

jue. 9/410:35 amSTL - SJO

1 stop25h 39mMultiple Airlines

Deal found 7/4

$403

lun. 8/412:16 pmSJO - STL

1 stop27h 15mSpirit Airlines

jue. 8/2810:37 amSTL - SJO

1 stop25h 35mSpirit Airlines

Deal found 7/7

$411

mar. 8/55:30 amSJO - STL

2 stops16h 15mUnited Airlines

mar. 8/265:30 pmSTL - SJO

2 stops19h 56mUnited Airlines

Deal found 7/7

$326

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 julio 7, 2025.

jue. 9/41:30 pmSJO - STL

1 stop28h 20mUnited Airlines

Deal found 7/7

$187

sáb. 8/3012:18 pmSJO - STL

1 stop20h 22mSpirit Airlines

Deal found 7/5

$190

mar. 9/21:55 pmSJO - STL

1 stop22h 14mAmerican Airlines

Deal found 7/7

$198

sáb. 8/305:05 amSJO - STL

3 stops27h 35mMultiple Airlines

Deal found 7/7

$219

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

jue. 9/4

1:30 pm-6:50 pm

1 stop28h 20m

Lambert-St Louis

dom. 10/12

6:15 am-7:37 pm

1 stop14h 22m

$326

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

mié. 9/3

8:50 am-8:00 pm

1 stop10h 10m

Lambert-St Louis

mar. 10/14

5:05 am-11:40 am

1 stop7h 35m

$335

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

mié. 9/3

7:27 am-8:32 pm

2 stops12h 05m

Lambert-St Louis

mar. 10/14

7:53 pm-12:00 pm

2 stops17h 07m

$340

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

sáb. 8/2

11:24 am-11:47 pm

1 stop11h 23m

Lambert-St Louis

jue. 9/4

10:35 am-11:14 am

1 stop25h 39m

$403

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

lun. 8/4

12:16 pm-4:31 pm

1 stop27h 15m

Lambert-St Louis

jue. 8/28

10:37 am-11:12 am

1 stop25h 35m

$411

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

sáb. 9/6

1:35 pm-10:02 pm

1 stop7h 27m

Lambert-St Louis

lun. 10/13

6:00 am-11:48 am

1 stop6h 48m

$438

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

jue. 9/4

1:30 pm-6:50 pm

1 stop28h 20m

$187

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

sáb. 8/30

12:18 pm-9:40 am

1 stop20h 22m

$190

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

mar. 9/2

1:55 pm-1:09 pm

1 stop22h 14m

$198

San JoséSt. Louis

SJO - STL

SJOSTL

San José Juan Santamaria Intl

sáb. 8/30

5:05 am-9:40 am

3 stops27h 35m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/7

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

4,257 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

4,257 reviews

Southwest

8.0

Very good

4,257 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

7,963 reviews

Southwest

8.0

Very good

4,257 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

8,846 reviews

Southwest

8.0

Very good

4,257 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

4,257 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.

Spirit Airlines

6.3

Okay

8,066 reviews

Southwest

8.0

Very good

4,257 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 $253, American Airlines will fly you from San José, San José Province to St. Louis and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Southwest - these airlines can fly you to your destination from $326 and $335, respectively. Users have found that American Airlines is 47% 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 United Airlines, with whom users have recently found tickets for as low as $187. However, be on the lookout for offers from Spirit Airlines and American 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

O'Fallon

Maryland Heights

Fairview Heights

Collinsville

Eureka

St. Peters

Glencoe

Alton

Festus

Chesterfield

Farmington

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from San José to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$328	Average$443	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$334	Average$432	FlexibilityNo cancel fee	On-time71%

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$187+ 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 9/4. 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 julio 7, 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 julio 7, 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 julio 7, 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 julio 7, 2025.