Cheap flights from St. Louis (STL) to Costa Rica from $115

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 5/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — SJO
May 21 — May 281

How far in advance should I book a flight from St. Louis to Costa Rica?

Find a great deal and save up to 101% by booking at least 59 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St. Louis to Costa Rica within the next two weeks, with the cheapest ticket starting at $316.

What is the cheapest month to fly from St. Louis to Costa Rica?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to Costa Rica. Flights to Costa Rica from St. Louis in September are about $592 on average during September, but can be found for as low as $349.

When is the cheapest time to fly from St. Louis to Costa Rica (STL - CR)?

When flying from St. Louis to Costa Rica, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Spirit Airlines flights from St. Louis to Costa Rica

Explore cheap flight options specifically provided by Spirit Airlines for the route between St. Louis and Costa Rica. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a look at some of the lowest-priced Spirit Airlines flights heading from St. Louis to Costa Rica. It's recommended that users confirm their flight details before booking.
Tue 5/2110:34 amSTL - SJO
1 stop14h 30mSpirit Airlines
Wed 5/2912:32 pmSJO - STL
1 stop27h 57mSpirit Airlines
Deal found 5/14$302
Tue 6/42:35 pmSTL - SJO
2 stops22h 02mSpirit Airlines
Wed 6/1212:32 pmSJO - STL
1 stop27h 56mSpirit Airlines
Deal found 5/16$326
Thu 7/256:19 pmSTL - SJO
1 stop6h 50mSpirit Airlines
Mon 7/2912:59 amSJO - STL
1 stop7h 27mSpirit Airlines
Deal found 5/15$352
Tue 7/23:23 pmSTL - SJO
1 stop9h 46mSpirit Airlines
Mon 7/812:59 amSJO - STL
1 stop12h 24mSpirit Airlines
Deal found 5/15$358
Tue 6/42:35 pmSTL - SJO
2 stops22h 02mSpirit Airlines
Wed 6/1212:32 pmSJO - STL
2 stops29h 50mSpirit Airlines
Deal found 5/16$375
Tue 7/211:57 amSTL - SJO
2 stops13h 12mSpirit Airlines
Mon 7/812:59 amSJO - STL
1 stop12h 24mSpirit Airlines
Deal found 5/15$376
Tue 5/282:35 pmSTL - SJO
1 stop23h 12mSpirit Airlines
Wed 6/512:59 amSJO - STL
1 stop15h 29mSpirit Airlines
Deal found 5/15$378
Tue 5/282:35 pmSTL - SJO
2 stops10h 29mSpirit Airlines
Wed 6/512:59 amSJO - STL
1 stop15h 29mSpirit Airlines
Deal found 5/15$385
Thu 7/258:49 pmSTL - SJO
1 stop16h 56mSpirit Airlines
Mon 7/2912:32 pmSJO - STL
1 stop19h 54mSpirit Airlines
Deal found 5/15$398

Cheap American Airlines flights from St. Louis to Costa Rica

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Costa Rica. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a gander at the lowest prices we've found on American Airlines flights from St. Louis to Costa Rica. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Tue 5/284:20 pmSTL - SJO
2 stops20h 31mAmerican Airlines
Thu 6/612:50 pmSJO - STL
2 stops18h 43mAmerican Airlines
Deal found 5/15$344
Tue 5/284:20 pmSTL - SJO
2 stops20h 31mAmerican Airlines
Thu 6/66:25 amSJO - STL
1 stop16h 01mAmerican Airlines
Deal found 5/15$345
Tue 6/45:55 amSTL - SJO
2 stops17h 19mAmerican Airlines
Thu 6/611:59 pmSJO - STL
1 stop7h 55mAmerican Airlines
Deal found 5/15$347
Mon 10/146:58 pmSTL - LIR
2 stops17h 13mAmerican Airlines
Tue 10/222:02 pmLIR - STL
2 stops19h 02mAmerican Airlines
Deal found 5/15$400
Mon 10/146:58 pmSTL - LIR
2 stops17h 13mAmerican Airlines
Tue 10/222:02 pmLIR - STL
1 stop17h 58mAmerican Airlines
Deal found 5/15$402
Mon 10/147:56 pmSTL - LIR
1 stop18h 16mAmerican Airlines
Tue 10/222:02 pmLIR - STL
1 stop7h 22mAmerican Airlines
Deal found 5/15$406
Thu 8/17:00 amSTL - SJO
1 stop16h 01mAmerican Airlines
Thu 8/82:25 pmSJO - STL
1 stop16h 54mAmerican Airlines
Deal found 5/15$407
Mon 8/125:30 amSTL - SJO
1 stop8h 50mAmerican Airlines
Tue 8/202:25 pmSJO - STL
1 stop7h 58mAmerican Airlines
Deal found 5/16$425
Mon 8/127:00 amSTL - SJO
2 stops13h 55mAmerican Airlines
Tue 8/207:01 amSJO - STL
2 stops14h 07mAmerican Airlines
Deal found 5/16$431

Cheap St. Louis to Costa Rica flights in May & June 2024

Find cheap flight options from St. Louis to Costa Rica specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
These are some of the most attractive deals on flights from St. Louis to Costa Rica in 2024. For more flight deals, be sure to check back very soon.
Wed 5/299:10 pmSTL - SJO
2 stops27h 54mMultiple Airlines
Wed 6/512:32 pmSJO - STL
1 stop27h 56mMultiple Airlines
Deal found 5/15$258
Thu 6/66:22 pmSTL - SJO
1 stop6h 47mSpirit Airlines
Wed 6/1212:32 pmSJO - STL
1 stop27h 56mSpirit Airlines
Deal found 5/16$266
Tue 6/410:34 amSTL - SJO
1 stop26h 03mSpirit Airlines
Wed 6/512:59 amSJO - STL
1 stop15h 29mSpirit Airlines
Deal found 5/15$272
Wed 5/299:10 pmSTL - SJO
1 stop13h 11mMultiple Airlines
Wed 6/512:32 pmSJO - STL
1 stop27h 56mMultiple Airlines
Deal found 5/15$275
Tue 6/410:34 amSTL - SJO
1 stop26h 03mSpirit Airlines
Wed 6/1212:32 pmSJO - STL
1 stop27h 56mSpirit Airlines
Deal found 5/16$279
Tue 6/42:35 pmSTL - SJO
2 stops22h 02mSpirit Airlines
Wed 6/512:59 amSJO - STL
1 stop15h 29mSpirit Airlines
Deal found 5/15$281
Thu 5/307:30 pmSTL - SJO
1 stop14h 51mSpirit Airlines
Mon 6/31:42 pmSJO - STL
1 stop22h 55mSpirit Airlines
Deal found 5/16$287
Thu 5/307:44 pmSTL - SJO
2 stops40h 48mMultiple Airlines
Mon 6/31:42 pmSJO - STL
1 stop16h 26mMultiple Airlines
Deal found 5/16$300
Tue 5/2110:34 amSTL - SJO
1 stop14h 30mSpirit Airlines
Wed 5/2912:32 pmSJO - STL
1 stop27h 57mSpirit Airlines
Deal found 5/14$302

St. Louis to Costa Rica 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Costa Rica in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
These are some of the most attractive deals on flights from St. Louis to Costa Rica in 2024. For more flight deals, be sure to check back very soon.
Wed 5/299:10 pmSTL - SJO
2 stops27h 54mMultiple Airlines
Wed 6/512:32 pmSJO - STL
1 stop27h 56mMultiple Airlines
Deal found 5/15$258
Thu 6/66:22 pmSTL - SJO
1 stop6h 47mSpirit Airlines
Wed 6/1212:32 pmSJO - STL
1 stop27h 56mSpirit Airlines
Deal found 5/16$266
Tue 6/410:34 amSTL - SJO
1 stop26h 03mSpirit Airlines
Wed 6/512:59 amSJO - STL
1 stop15h 29mSpirit Airlines
Deal found 5/15$272
Wed 5/299:10 pmSTL - SJO
1 stop13h 11mMultiple Airlines
Wed 6/512:32 pmSJO - STL
1 stop27h 56mMultiple Airlines
Deal found 5/15$275
Tue 6/410:34 amSTL - SJO
1 stop26h 03mSpirit Airlines
Wed 6/1212:32 pmSJO - STL
1 stop27h 56mSpirit Airlines
Deal found 5/16$279
Tue 9/2410:34 amSTL - SJO
1 stop25h 58mSpirit Airlines
Wed 10/212:32 pmSJO - STL
1 stop27h 58mSpirit Airlines
Deal found 5/15$280
Tue 6/42:35 pmSTL - SJO
2 stops22h 02mSpirit Airlines
Wed 6/512:59 amSJO - STL
1 stop15h 29mSpirit Airlines
Deal found 5/15$281
Thu 5/307:30 pmSTL - SJO
1 stop14h 51mSpirit Airlines
Mon 6/31:42 pmSJO - STL
1 stop22h 55mSpirit Airlines
Deal found 5/16$287
Thu 5/307:44 pmSTL - SJO
2 stops40h 48mMultiple Airlines
Mon 6/31:42 pmSJO - STL
1 stop16h 26mMultiple Airlines
Deal found 5/16$300

St. Louis to Costa Rica flights leaving soon

Find last-minute flight options from St. Louis to Costa Rica for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Check out these flights departing soon from St. Louis to Costa Rica. It's wise to confirm all flight details are correct before booking.
Tue 5/2110:34 amSTL - SJO
1 stop14h 30mSpirit Airlines
Wed 5/2912:32 pmSJO - STL
1 stop27h 57mSpirit Airlines
Deal found 5/14$302
Tue 5/2110:34 amSTL - SJO
1 stop14h 30mMultiple Airlines
Wed 5/299:36 amSJO - STL
2 stops23h 37mMultiple Airlines
Deal found 5/14$321
Tue 5/2110:34 amSTL - SJO
1 stop14h 30mMultiple Airlines
Wed 5/299:36 amSJO - STL
3 stops25h 29mMultiple Airlines
Deal found 5/14$354
Tue 5/2110:34 amSTL - SJO
2 stops22h 36mMultiple Airlines
Wed 5/299:36 amSJO - STL
3 stops25h 29mMultiple Airlines
Deal found 5/14$402
Tue 5/2110:34 amSTL - SJO
3 stops23h 47mMultiple Airlines
Wed 5/299:36 amSJO - STL
3 stops25h 29mMultiple Airlines
Deal found 5/14$440
Fri 5/247:44 pmSTL - SJO
1 stop14h 37mMultiple Airlines
Mon 5/274:59 pmSJO - STL
2 stops40h 14mMultiple Airlines
Deal found 5/15$491
Fri 5/247:44 pmSTL - SJO
1 stop18h 03mMultiple Airlines
Mon 5/271:42 pmSJO - STL
1 stop22h 55mMultiple Airlines
Deal found 5/15$507
Fri 5/247:44 pmSTL - SJO
1 stop18h 03mMultiple Airlines
Sun 5/2612:59 amSJO - STL
2 stops18h 21mMultiple Airlines
Deal found 5/15$519
Fri 5/247:44 pmSTL - SJO
1 stop18h 03mMultiple Airlines
Sat 6/112:59 amSJO - STL
1 stop15h 30mMultiple Airlines
Deal found 5/15$602

One-way flights to Costa Rica from St. Louis

Search for one-way flight options from St. Louis to Costa Rica. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Some of the best available deals we've found on one-way flights from St. Louis to Costa Rica. Users in need of a round-trip flight from St. Louis to Costa Rica instead should update the search form at the top of page.
Tue 5/2110:34 amSTL - SJO
1 stop14h 30mSpirit Airlines
Deal found 5/15$115
Mon 6/39:20 pmSTL - SJO
2 stops15h 12mMultiple Airlines
Deal found 5/15$128
Sun 5/267:30 pmSTL - SJO
1 stop14h 51mSpirit Airlines
Deal found 5/15$132
Mon 6/39:20 pmSTL - SJO
1 stop16h 27mMultiple Airlines
Deal found 5/15$134
Sat 6/296:22 pmSTL - SJO
1 stop6h 47mSpirit Airlines
Deal found 5/15$154
Sun 8/116:00 amSTL - SJO
1 stop6h 53mDelta
Deal found 5/15$165
Tue 5/2110:34 amSTL - SJO
2 stops22h 15mMultiple Airlines
Deal found 5/15$167
Sat 6/2911:34 amSTL - SJO
2 stops13h 35mSpirit Airlines
Deal found 5/15$175
Sun 7/146:20 amSTL - SJO
1 stop17h 19mUnited Airlines
Deal found 5/14$176

Find flights from St. Louis to Costa Rica within your budget

Customize your flight search to find flights from St. Louis to Costa Rica 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, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$321 - $607

Route

Depart

Return

Price

Lambert-St LouisSan José Juan Santamaria Intl

STL - SJO

STLSJO

Lambert-St Louis

Tue 5/21

1 stop14h 30m

San José Juan Santamaria Intl

Wed 5/29

2 stops23h 37m

$321

Lambert-St LouisSan José Juan Santamaria Intl

STL - SJO

STLSJO

Lambert-St Louis

Tue 6/4

2 stops22h 02m

San José Juan Santamaria Intl

Wed 6/12

1 stop27h 56m

$326

Lambert-St LouisSan José Juan Santamaria Intl

STL - SJO

STLSJO

Lambert-St Louis

Tue 5/28

2 stops20h 31m

San José Juan Santamaria Intl

Thu 6/6

2 stops18h 43m

$344

Lambert-St LouisSan José Juan Santamaria Intl

STL - SJO

STLSJO

Lambert-St Louis

Tue 5/28

2 stops20h 31m

San José Juan Santamaria Intl

Thu 6/6

1 stop16h 01m

$345

Lambert-St LouisSan José Juan Santamaria Intl

STL - SJO

STLSJO

Lambert-St Louis

Thu 7/25

1 stop6h 50m

San José Juan Santamaria Intl

Mon 7/29

1 stop7h 27m

$352

Lambert-St LouisSan José Juan Santamaria Intl

STL - SJO

STLSJO

Lambert-St Louis

Tue 5/21

1 stop14h 30m

San José Juan Santamaria Intl

Wed 5/29

3 stops25h 29m

$354

Lambert-St LouisSan José Juan Santamaria Intl

STL - SJO

STLSJO

Lambert-St Louis

Tue 5/28

1 stop14h 22m

San José Juan Santamaria Intl

Thu 6/6

1 stop15h 45m

$372

Lambert-St LouisLiberia

STL - LIR

STLLIR

Lambert-St Louis

Sat 9/28

1 stop6h 43m

Liberia

Wed 10/2

1 stop9h 22m

$419

Lambert-St LouisSan José Juan Santamaria Intl

STL - SJO

STLSJO

Lambert-St Louis

Fri 5/24

2 stops43h 56m

San José Juan Santamaria Intl

Sun 6/2

2 stops44h 28m

$607

Flights are sorted by cheapest first

Deals found on 5/14

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Rica. Reviews last updated May 16, 2024.
Read reviews from past customers who have flown Spirit Airlines, American Airlines and United Airlines from St. Louis to Costa Rica. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,157 reviews

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

8.1
Very good
9,157 reviews
8.1
Very good
9,157 reviews

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

8.0
Very good
10,673 reviews
8.1
Very good
9,157 reviews

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

7.4
Good
10,924 reviews
8.1
Very good
9,157 reviews

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

7.3
Good
14,514 reviews
8.1
Very good
9,157 reviews

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

6.4
Okay
8,672 reviews
8.1
Very good
9,157 reviews

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from St. Louis to Costa Rica?

    If you book a flight to Costa Rica from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • Can I find flights from St. Louis to Costa Rica for under $400 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Costa Rica for under $400. The cheapest flight booked recently is on Multiple Airlines for just $321, but on average you can expect to pay $364.

  • Are there last-minute flights available from St. Louis to Costa Rica for under $400?

    There are currently 20+ open flights from St. Louis to Costa Rica within the next 7 days for less than $400.

  • What are the cheapest airlines to fly from St. Louis to Costa Rica one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $115. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from St. Louis to Costa Rica for a low price.

  • What are the most popular airlines that fly from St. Louis to Costa Rica?

  • What does STL to SJO mean?

    STL and SJO are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to SJO refers to a flight route from Lambert-St Louis Airport to San José Juan Santamaria Intl Airport. Ready for more IATA code knowledge? These are related airports for your current travel destination: Liberia Airport (LIR), Limon Airport (LIO), San José Tobias Bolanos Intl Airport (SYQ), Tamarindo Airport (TNO), Buenos Aires Airport (BAI).

  • Can I find deals for flights from St. Louis to Costa Rica that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Costa Rica flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Costa Rica with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Costa Rica flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Costa Rica that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Costa Rica?

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

  • Can I find deals for business class flights from St. Louis to Costa Rica?

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

  • Can I find deals for flights from St. Louis to Costa Rica that allow pets onboard?

    Many airlines flying from St. Louis to Costa Rica offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Costa Rica?

    Yes, you can often find last-minute deals on St. Louis to Costa Rica flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Costa Rica flight deals updated?

    The St. Louis to Costa Rica flight deals you see on this page were last updated on 5/16.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from St. Louis to Costa Rica

Discover the top 6 airlines that operate flights from St. Louis to Costa Rica. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$263Average$407FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$398Average$597FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$418Average$596FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$430Average$670FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapest$566Average$762FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Air CanadaCheapest$650Average$961FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Search flights from St. Louis to Costa Rica by cabin class

Find flights from St. Louis to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Costa Rica?

Cheapflights makes it easy to find St. Louis to Costa Rica flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Costa Rica?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Costa Rica from St. Louis.

Can Cheapflights find flights from St. Louis to Costa Rica with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from St. Louis to Costa Rica flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from St. Louis to Costa Rica become cheaper?

Of course! You can now track prices for flights from St. Louis to Costa Rica and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.