$152+ Cheap flights from Missouri to Costa Rica
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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJO
May 29 — Jun 51
Round-trip
1 adult, Economy
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Find cheap flights from Missouri to Costa Rica with Cheapflights
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Cheapest flights from Missouri to Costa RicaExplore the most affordable flight options available from Missouri to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
Explore the most affordable flight options available from Missouri to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
This Travelocity deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/64:19 pm
STL
- SJO
1 stop17h 00m
Frontier
Thu 6/119:35 am
SJO
- STL
1 stop13h 34m
Frontier
Deal found 4/27![Frontier logo]()
$358
This CheapOair deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/304:10 pm
STL
- SJO
1 stop17h 10m
Frontier
Thu 9/39:35 am
SJO
- STL
1 stop13h 39m
Frontier
Deal found 4/29![Frontier logo]()
$369
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:50 am
STL
- LIR
1 stop9h 47m
United Airlines
Wed 11/188:35 am
LIR
- STL
1 stop10h 03m
United Airlines
Deal found 4/27![United Airlines logo]()
$372
This CheapOair deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:33 pm
STL
- SJO
2 stops38h 46m
Frontier
Sun 5/249:35 am
SJO
- STL
1 stop13h 22m
Frontier
Deal found 4/29![Frontier logo]()
$375
This Travelocity deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/244:17 pm
STL
- SJO
1 stop17h 03m
Frontier
Sun 6/289:35 am
SJO
- STL
1 stop13h 34m
Frontier
Deal found 4/28![Frontier logo]()
$378
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:55 pm
MCI
- LIR
2 stops17h 15m
United Airlines
Fri 9/111:20 pm
LIR
- MCI
2 stops18h 47m
United Airlines
Deal found 4/29![United Airlines logo]()
$383
This FlightHub deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/64:19 pm
STL
- SJO
1 stop17h 00m
Frontier
Sat 6/139:35 am
SJO
- STL
1 stop13h 34m
Frontier
Deal found 4/27![Frontier logo]()
$388
This CheapOair deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:09 pm
STL
- SJO
1 stop17h 11m
Frontier
Sun 7/129:35 am
SJO
- STL
1 stop13h 24m
Frontier
Deal found 4/24![Frontier logo]()
$389
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:26 am
MCI
- SJO
1 stop8h 26m
American Airlines
Wed 8/262:52 pm
SJO
- MCI
2 stops18h 39m
American Airlines
Deal found 4/28![American Airlines logo]()
$395
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:03 am
STL
- SJO
2 stops14h 49m
American Airlines
Thu 9/36:00 am
SJO
- STL
2 stops16h 23m
American Airlines
Deal found 4/28![American Airlines logo]()
$395
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:25 am
STL
- SJO
2 stops12h 14m
United Airlines
Tue 6/212:30 am
SJO
- STL
1 stop8h 37m
United Airlines
Deal found 4/27![United Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/65:27 pm
STL
- SJO
2 stops19h 18m
Multiple Airlines
Thu 6/119:35 am
SJO
- STL
1 stop13h 34m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$400
Best flights from Missouri to Costa RicaDiscover carefully curated flight deals from Missouri to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
Discover carefully curated flight deals from Missouri to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:35 am
STL
- SJO
1 stop12h 02m
United Airlines
Wed 6/37:55 am
SJO
- STL
1 stop8h 47m
United Airlines
Deal found 4/27![United Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:03 am
STL
- SJO
2 stops14h 49m
American Airlines
Thu 9/36:00 am
SJO
- STL
1 stop15h 40m
American Airlines
Deal found 4/24![American Airlines logo]()
$401
This Southwest deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:25 am
STL
- SJO
1 stop7h 10m
Southwest
Fri 5/229:00 am
SJO
- STL
1 stop13h 40m
Southwest
Deal found 4/25![Southwest logo]()
$458
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:40 am
MCI
- SJO
1 stop7h 16m
Delta
Fri 9/41:21 pm
SJO
- MCI
1 stop8h 01m
Delta
Deal found 4/25![Delta logo]()
$502
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/63:26 pm
SGF
- SJO
1 stop24h 45m
Multiple Airlines
Sun 7/129:35 am
SJO
- SGF
1 stop22h 55m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$571
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:11 pm
STL
- LIR
2 stops18h 49m
American Airlines
Mon 9/282:10 pm
LIR
- STL
2 stops21h 52m
American Airlines
Deal found 4/25![American Airlines logo]()
$447
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:36 pm
MCI
- LIR
2 stops18h 34m
United Airlines
Wed 9/161:20 pm
LIR
- MCI
2 stops20h 01m
United Airlines
Deal found 4/24![United Airlines logo]()
$465
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:45 pm
SGF
- SJO
2 stops17h 20m
American Airlines
Sat 9/261:05 pm
SJO
- SGF
2 stops20h 21m
American Airlines
Deal found 4/28![American Airlines logo]()
$462
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
SGF
- SJO
1 stop6h 56m
Delta
Wed 9/21:21 pm
SJO
- SGF
1 stop8h 08m
Delta
Deal found 4/25![Delta logo]()
$524
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:23 am
MCI
- LIR
1 stop6h 47m
United Airlines
Wed 8/261:20 pm
LIR
- MCI
1 stop8h 13m
United Airlines
Deal found 4/24![United Airlines logo]()
$486
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:05 am
MCI
- SJO
1 stop7h 10m
Delta
Sat 6/62:40 pm
SJO
- MCI
1 stop8h 09m
Delta
Deal found 4/25![Delta logo]()
$533
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:00 am
SGF
- SJO
1 stop8h 52m
American Airlines
Mon 8/171:29 pm
SJO
- SGF
2 stops19h 34m
American Airlines
Deal found 4/28![American Airlines logo]()
$529
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:20 am
MCI
- SJO
1 stop14h 17m
United Airlines
Tue 10/131:25 pm
SJO
- MCI
1 stop8h 09m
United Airlines
Deal found 4/27![United Airlines logo]()
$532
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:00 am
SGF
- SJO
1 stop6h 54m
Delta
Thu 9/171:25 pm
SJO
- SGF
1 stop8h 04m
Delta
Deal found 4/26![Delta logo]()
$576
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/118:20 pm
MCI
- LIR
2 stops17h 50m
Southwest
Thu 6/182:10 pm
LIR
- MCI
2 stops9h 20m
Southwest
Deal found 4/27![Southwest logo]()
$703
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:10 am
MCI
- SJO
1 stop7h 11m
United Airlines
Fri 6/512:30 am
SJO
- MCI
1 stop8h 33m
United Airlines
Deal found 4/25![United Airlines logo]()
$533
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:54 pm
STL
- SJO
1 stop17h 41m
American Airlines
Fri 5/1511:35 pm
SJO
- STL
2 stops11h 12m
American Airlines
Deal found 4/25![American Airlines logo]()
$563
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/316:05 am
MCI
- SJO
1 stop17h 34m
United Airlines
Thu 6/412:30 am
SJO
- MCI
1 stop8h 33m
United Airlines
Deal found 4/29![United Airlines logo]()
$536
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:00 am
SGF
- SJO
1 stop6h 56m
Delta
Thu 9/31:21 pm
SJO
- SGF
1 stop8h 08m
Delta
Deal found 4/25![Delta logo]()
$637
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/65:41 pm
STL
- LIR
2 stops18h 03m
United Airlines
Thu 6/114:30 pm
LIR
- STL
1 stop30h 05m
United Airlines
Deal found 4/26![United Airlines logo]()
$536
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:13 pm
STL
- LIR
2 stops18h 09m
American Airlines
Wed 6/172:45 pm
LIR
- STL
2 stops20h 14m
American Airlines
Deal found 4/28![American Airlines logo]()
$606
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/146:14 am
STL
- SJO
1 stop17h 25m
United Airlines
Mon 6/2212:44 pm
SJO
- STL
2 stops22h 27m
United Airlines
Deal found 4/26![United Airlines logo]()
$551
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/275:39 am
MCI
- SJO
1 stop7h 12m
Delta
Sat 8/82:32 pm
SJO
- MCI
1 stop17h 51m
Delta
Deal found 4/29![Delta logo]()
$688
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:00 am
STL
- SJO
1 stop7h 21m
United Airlines
Sat 5/167:55 am
SJO
- STL
1 stop13h 35m
United Airlines
Deal found 4/29![United Airlines logo]()
$558
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/295:10 am
STL
- LIR
1 stop11h 09m
United Airlines
Sat 7/43:27 pm
LIR
- STL
2 stops19h 44m
United Airlines
Deal found 4/26![United Airlines logo]()
$566
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/34:59 pm
SGF
- SJO
1 stop6h 40m
United Airlines
Tue 6/97:55 am
SJO
- SGF
1 stop9h 48m
United Airlines
Deal found 4/25![United Airlines logo]()
$573
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:14 am
STL
- LIR
1 stop28h 36m
United Airlines
Sat 5/3011:10 am
LIR
- STL
2 stops22h 24m
United Airlines
Deal found 4/27![United Airlines logo]()
$576
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/108:30 am
MCI
- SJO
1 stop15h 09m
United Airlines
Sat 6/207:55 am
SJO
- MCI
1 stop25h 08m
United Airlines
Deal found 4/27![United Airlines logo]()
$577
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:35 pm
SGF
- SJO
2 stops18h 03m
United Airlines
Thu 9/177:55 am
SJO
- SGF
1 stop7h 26m
United Airlines
Deal found 4/26![United Airlines logo]()
$589
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:41 pm
MCI
- LIR
1 stop18h 12m
United Airlines
Fri 6/54:30 pm
LIR
- MCI
2 stops20h 50m
United Airlines
Deal found 4/29![United Airlines logo]()
$591
Last-minute flights from Missouri to Costa RicaDiscover last-minute flight deals from Missouri to Costa Rica. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Costa Rica. Data last updated April 29, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:00 am
STL
- LIR
1 stop7h 00m
Delta
Wed 5/131:25 pm
LIR
- STL
1 stop9h 34m
Delta
Deal found 4/25![Delta logo]()
$472
This Southwest deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:25 am
STL
- SJO
1 stop7h 10m
Southwest
Fri 5/229:00 am
SJO
- STL
1 stop13h 40m
Southwest
Deal found 4/25![Southwest logo]()
$458
This Kiwi.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:27 pm
STL
- SJO
2 stops19h 18m
Multiple Airlines
Fri 5/227:00 am
SJO
- STL
1 stop15h 57m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$466
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:24 am
STL
- LIR
1 stop8h 46m
American Airlines
Mon 5/253:37 pm
LIR
- STL
1 stop16h 14m
American Airlines
Deal found 4/27![American Airlines logo]()
$467
This CheapOair deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:33 pm
STL
- SJO
2 stops38h 46m
Frontier
Sun 5/249:35 am
SJO
- STL
1 stop13h 22m
Frontier
Deal found 4/29![Frontier logo]()
$375
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:06 am
STL
- SJO
1 stop9h 01m
American Airlines
Fri 5/2911:59 pm
SJO
- STL
1 stop7h 52m
American Airlines
Deal found 4/29![American Airlines logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/254:19 pm
STL
- SJO
1 stop23h 59m
Multiple Airlines
Fri 5/291:00 pm
SJO
- STL
2 stops18h 55m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$433
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:24 pm
STL
- LIR
1 stop16h 26m
United Airlines
Fri 5/2911:10 am
LIR
- STL
1 stop8h 32m
United Airlines
Deal found 4/27![United Airlines logo]()
$441
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/255:14 am
STL
- LIR
1 stop7h 21m
American Airlines
Fri 5/292:45 pm
LIR
- STL
2 stops20h 14m
American Airlines
Deal found 4/27![American Airlines logo]()
$447
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:25 am
STL
- SJO
2 stops12h 14m
United Airlines
Tue 6/212:30 am
SJO
- STL
1 stop8h 37m
United Airlines
Deal found 4/27![United Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:36 am
STL
- SJO
1 stop15h 06m
American Airlines
Fri 6/52:00 pm
SJO
- STL
1 stop17h 38m
American Airlines
Deal found 4/29![American Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:27 pm
STL
- SJO
2 stops19h 18m
Multiple Airlines
Sun 6/79:35 am
SJO
- STL
1 stop24h 18m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$448
One-way flights from Missouri to Costa RicaSearch for one-way flight options from Missouri to Costa Rica. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
Search for one-way flight options from Missouri to Costa Rica. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
This Priceline deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/154:09 pm
STL
- SJO
1 stop17h 11m
Frontier
Deal found 4/27![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:19 pm
MCI
- SJO
2 stops42h 56m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$158
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:12 pm
STL
- LIR
1 stop18h 23m
American Airlines
Deal found 4/26![American Airlines logo]()
$170
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:12 pm
STL
- LIR
2 stops18h 10m
American Airlines
Deal found 4/27![American Airlines logo]()
$176
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:25 pm
STL
- SJO
2 stops18h 09m
American Airlines
Deal found 4/27![American Airlines logo]()
$182
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/76:39 am
MCI
- SJO
1 stop17h 04m
American Airlines
Deal found 4/28![American Airlines logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:33 pm
STL
- SJO
2 stops18h 12m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$198
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/65:41 pm
STL
- LIR
2 stops18h 03m
United Airlines
Deal found 4/27![United Airlines logo]()
$200
This Air Canada deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/52:15 pm
STL
- LIR
1 stop22h 50m
Air Canada
Deal found 4/26![Air Canada logo]()
$203
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:14 pm
STL
- LIR
2 stops18h 04m
American Airlines
Deal found 4/29![American Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:16 pm
MCI
- SJO
2 stops42h 59m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$206
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:36 am
STL
- SJO
1 stop15h 06m
American Airlines
Deal found 4/25![American Airlines logo]()
$207
Find flight deals from Missouri to Costa Rica
Keep the following information in mind while searching for Missouri to Costa Rica flight deals. Data was last updated April 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $358 (Travelocity) |
One-way from | $152 (Priceline) |
Popular in | March |
Cheapest in | January |
Average price | $516 |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri 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 2,558,603 searches. Data last updated April 29, 2026.
Use the filters below to find and compare flights from Missouri to Costa Rica that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Wed 5/27
8:35 am-7:37 pm
1 stop12h 02m
San José Juan Santamaria Intl
Wed 6/3
7:55 am-5:42 pm
1 stop8h 47m
$396
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Sun 8/30
6:03 am-7:52 pm
2 stops14h 49m
San José Juan Santamaria Intl
Thu 9/3
6:00 am-10:40 pm
1 stop15h 40m
$401
St. LouisLiberia
STL - LIR
STLLIR
Lambert-St Louis
Mon 9/21
5:11 pm-11:00 am
2 stops18h 49m
Liberia
Mon 9/28
2:10 pm-1:02 pm
2 stops21h 52m
$447
St. LouisSan José
STL - SJO
STLSJO
Lambert-St Louis
Sat 5/16
6:25 am-12:35 pm
1 stop7h 10m
San José Juan Santamaria Intl
Fri 5/22
9:00 am-11:40 pm
1 stop13h 40m
$458
SpringfieldSan José
SGF - SJO
SGFSJO
Springfield-Branson
Mon 9/21
6:45 pm-11:05 am
2 stops17h 20m
San José Juan Santamaria Intl
Sat 9/26
1:05 pm-10:26 am
2 stops20h 21m
$462
Kansas CityLiberia
MCI - LIR
MCILIR
Kansas City
Fri 9/11
6:36 pm-12:10 pm
2 stops18h 34m
Liberia
Wed 9/16
1:20 pm-10:21 am
2 stops20h 01m
$465
Kansas CityLiberia
MCI - LIR
MCILIR
Kansas City
Sat 8/22
6:23 am-12:10 pm
1 stop6h 47m
Liberia
Wed 8/26
1:20 pm-10:33 pm
1 stop8h 13m
$486
Kansas CitySan José
MCI - SJO
MCISJO
Kansas City
Sat 8/15
5:40 am-11:56 am
1 stop7h 16m
San José Juan Santamaria Intl
Fri 9/4
1:21 pm-10:22 pm
1 stop8h 01m
$502
SpringfieldSan José
SGF - SJO
SGFSJO
Springfield-Branson
Tue 8/18
6:00 am-11:56 am
1 stop6h 56m
San José Juan Santamaria Intl
Wed 9/2
1:21 pm-10:29 pm
1 stop8h 08m
$524
SpringfieldSan José
SGF - SJO
SGFSJO
Springfield-Branson
Thu 8/13
6:00 am-1:52 pm
1 stop8h 52m
San José Juan Santamaria Intl
Mon 8/17
1:29 pm-10:03 am
2 stops19h 34m
$529
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to Costa Rica
Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Missouri with our price prediction graph.
STL-SJO
MCI-SJO
STL-LIR
SGF-SJO
MCI-LIR
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 Missouri to Costa Rica
USMO-CR0
STL-SJO
MCI-SJO
STL-LIR
SGF-SJO
How far ahead should I book a flight from Missouri to Costa Rica?
To ensure you get the cheapest price possible for a flight from Missouri to Costa Rica, you should look to book at least 15 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 Missouri to Costa Rica?
Currently, August is the cheapest month in which you can book a flight from Missouri to Costa Rica (average of $131). Flying from Missouri to Costa Rica in December is currently the most expensive (average of $326). 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.
Related info for your journey
Find useful and relevant information for your journey from Missouri to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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.
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Top destinations
Alternative routes for Missouri to Costa Rica
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Costa Rica by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Costa Rica by cabin class
Find flights from Missouri to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Costa Rica flights
Browse other Missouri and Costa Rica flight options. Last updated on April 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Costa Rica
Find the right flight back to Missouri after your stay in Costa Rica
Missouri to Costa Rica flights
Consider these flights traveling from Missouri to Costa Rica.
Top 4 airlines flying from Missouri to Costa Rica
Discover the top 4 airlines that operate flights from Missouri 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 2,558,603 searches. Data last updated April 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$217 | Average$498 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$314 | Average$628 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$327 | Average$551 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$366 | Average$660 | FlexibilityNo cancel fee | On-time63% |