$179+ Cheap flights from Montana 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SJO
May 19 — May 261
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Montana to Costa Rica with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Montana to Costa Rica
Cheapest
Best
Last-minute
One-way
Cheapest flights from Montana to Costa RicaExplore the most affordable flight options available from Montana to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 19, 2026.
Explore the most affordable flight options available from Montana to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 19, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:03 am
BZN
- LIR
2 stops24h 34m
Alaska Airlines
Mon 8/176:39 pm
LIR
- BZN
2 stops42h 45m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$444
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:03 am
BZN
- LIR
2 stops35h 26m
Alaska Airlines
Mon 8/176:39 pm
LIR
- BZN
2 stops42h 45m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$451
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:03 am
BZN
- LIR
2 stops24h 34m
Alaska Airlines
Tue 8/189:03 am
LIR
- BZN
2 stops24h 44m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$467
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:05 pm
BZN
- LIR
2 stops26h 24m
Alaska Airlines
Mon 8/176:39 pm
LIR
- BZN
2 stops42h 45m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$473
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:03 am
BZN
- LIR
2 stops48h 34m
Alaska Airlines
Mon 8/176:39 pm
LIR
- BZN
2 stops42h 45m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$480
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:03 am
BZN
- LIR
2 stops35h 26m
Alaska Airlines
Tue 8/189:03 am
LIR
- BZN
2 stops24h 44m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$481
This United Airlines deal was found by Cheapflights users on 4/16. 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 4/205:51 pm
BIL
- SJO
2 stops16h 20m
United Airlines
Wed 4/2211:13 am
SJO
- BIL
2 stops22h 27m
United Airlines
Deal found 4/16![United Airlines logo]()
$485
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:26 am
BZN
- LIR
2 stops20h 11m
Alaska Airlines
Tue 8/189:03 am
LIR
- BZN
2 stops24h 44m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$496
This American Airlines deal was found by Cheapflights users on 4/16. 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 12/151:46 pm
BZN
- SJO
1 stop8h 13m
American Airlines
Wed 12/2312:34 am
SJO
- BZN
1 stop15h 20m
American Airlines
Deal found 4/16![American Airlines logo]()
$500
This Expedia deal was found by Cheapflights users on 4/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:28 pm
FCA
- SJO
2 stops28h 17m
Alaska Airlines
Fri 5/812:55 am
SJO
- FCA
2 stops46h 56m
Alaska Airlines
Deal found 4/18![Alaska Airlines logo]()
$500
This American Airlines deal was found by Cheapflights users on 4/14. 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 10/312:02 pm
BIL
- SJO
2 stops22h 20m
American Airlines
Wed 11/116:22 am
SJO
- BIL
1 stop15h 53m
American Airlines
Deal found 4/14![American Airlines logo]()
$505
This American Airlines deal was found by Cheapflights users on 4/17. 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 4/296:45 am
MSO
- SJO
1 stop14h 51m
American Airlines
Sat 8/221:29 pm
SJO
- MSO
2 stops23h 06m
American Airlines
Deal found 4/17![American Airlines logo]()
$505
Best flights from Montana to Costa RicaDiscover carefully curated flight deals from Montana to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 19, 2026.
Discover carefully curated flight deals from Montana to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 19, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:05 pm
BZN
- LIR
2 stops26h 24m
Alaska Airlines
Mon 8/176:39 pm
LIR
- BZN
2 stops42h 45m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$473
This American Airlines deal was found by Cheapflights users on 4/15. 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 5/313:50 pm
FCA
- SJO
2 stops21h 09m
American Airlines
Sun 6/711:59 pm
SJO
- FCA
1 stop11h 36m
American Airlines
Deal found 4/15![American Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 4/15. 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 9/235:32 pm
MSO
- SJO
2 stops18h 54m
United Airlines
Wed 9/301:30 pm
SJO
- MSO
2 stops23h 57m
United Airlines
Deal found 4/15![United Airlines logo]()
$525
This Delta deal was found by Cheapflights users on 4/16. 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 8/912:13 pm
BZN
- LIR
2 stops23h 47m
Delta
Fri 8/211:25 pm
LIR
- BZN
2 stops21h 15m
Delta
Deal found 4/16![Delta logo]()
$681
This Travelocity deal was found by Cheapflights users on 4/16. 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 8/15:51 pm
BZN
- SJO
3 stops17h 54m
Multiple Airlines
Sat 8/812:40 pm
SJO
- BZN
3 stops28h 31m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$920
This Expedia deal was found by Cheapflights users on 4/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:28 pm
FCA
- SJO
2 stops28h 17m
Alaska Airlines
Fri 5/812:55 am
SJO
- FCA
2 stops46h 56m
Alaska Airlines
Deal found 4/18![Alaska Airlines logo]()
$500
This American Airlines deal was found by Cheapflights users on 4/16. 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 6/64:16 pm
BZN
- SJO
2 stops20h 53m
American Airlines
Sat 6/1311:59 pm
SJO
- BZN
1 stop20h 45m
American Airlines
Deal found 4/16![American Airlines logo]()
$515
This United Airlines deal was found by Cheapflights users on 4/14. 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 5/245:20 pm
MSO
- SJO
2 stops29h 19m
United Airlines
Fri 5/2912:30 am
SJO
- MSO
2 stops15h 50m
United Airlines
Deal found 4/14![United Airlines logo]()
$525
This American Airlines deal was found by Cheapflights users on 4/17. 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 8/184:54 pm
FCA
- SJO
2 stops20h 58m
American Airlines
Mon 8/241:08 pm
SJO
- FCA
2 stops23h 26m
American Airlines
Deal found 4/17![American Airlines logo]()
$545
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/123:55 pm
MSO
- SJO
2 stops55h 38m
Alaska Airlines
Mon 5/1812:53 am
SJO
- MSO
2 stops23h 06m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$558
This United Airlines deal was found by Cheapflights users on 4/15. 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 6/184:17 pm
BZN
- SJO
1 stop14h 58m
United Airlines
Mon 6/2212:30 am
SJO
- BZN
2 stops12h 50m
United Airlines
Deal found 4/15![United Airlines logo]()
$605
This American Airlines deal was found by Cheapflights users on 4/14. 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 9/173:29 pm
FCA
- SJO
2 stops19h 36m
American Airlines
Thu 9/2412:57 pm
SJO
- FCA
1 stop22h 40m
American Airlines
Deal found 4/14![American Airlines logo]()
$557
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:03 am
BZN
- LIR
2 stops24h 34m
Alaska Airlines
Sun 8/166:39 pm
LIR
- BZN
2 stops19h 30m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$577
This Delta deal was found by Cheapflights users on 4/15. 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 5/311:33 am
BIL
- LIR
2 stops24h 27m
Delta
Thu 5/71:25 pm
LIR
- BIL
2 stops21h 29m
Delta
Deal found 4/15![Delta logo]()
$741
This United Airlines deal was found by Cheapflights users on 4/18. 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 5/296:20 am
FCA
- SJO
2 stops16h 19m
United Airlines
Mon 6/112:30 am
SJO
- FCA
2 stops21h 17m
United Airlines
Deal found 4/18![United Airlines logo]()
$615
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:40 pm
FCA
- SJO
2 stops29h 53m
Alaska Airlines
Mon 6/112:53 am
SJO
- FCA
2 stops33h 58m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$585
This American Airlines deal was found by Cheapflights users on 4/17. 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 8/177:00 am
BIL
- SJO
1 stop30h 52m
American Airlines
Mon 8/241:08 pm
SJO
- BIL
2 stops22h 50m
American Airlines
Deal found 4/17![American Airlines logo]()
$637
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:00 am
BZN
- LIR
2 stops22h 20m
Alaska Airlines
Fri 5/2911:20 am
LIR
- BZN
2 stops23h 43m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$591
This United Airlines deal was found by Cheapflights users on 4/17. 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 6/2410:33 am
BZN
- SJO
2 stops23h 38m
United Airlines
Mon 6/2911:13 am
SJO
- BZN
2 stops22h 24m
United Airlines
Deal found 4/17![United Airlines logo]()
$675
This Expedia deal was found by Cheapflights users on 4/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1811:22 am
BZN
- SJO
3 stops24h 23m
Multiple Airlines
Tue 6/235:45 am
SJO
- BZN
3 stops32h 24m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$966
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/133:05 pm
BZN
- LIR
2 stops15h 32m
Alaska Airlines
Sun 8/166:39 pm
LIR
- BZN
2 stops22h 32m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$606
This Delta deal was found by Cheapflights users on 4/14. 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.
Wed 8/1211:30 am
BZN
- LIR
2 stops24h 30m
Delta
Wed 8/191:25 pm
LIR
- BZN
1 stop21h 34m
Delta
Deal found 4/14![Delta logo]()
$904
This United Airlines deal was found by Cheapflights users on 4/16. 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 8/295:57 pm
BIL
- SJO
2 stops25h 40m
United Airlines
Tue 9/11:25 pm
SJO
- BIL
2 stops27h 51m
United Airlines
Deal found 4/16![United Airlines logo]()
$682
This American Airlines deal was found by Cheapflights users on 4/15. 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 8/111:46 pm
BZN
- LIR
2 stops21h 41m
American Airlines
Wed 8/1912:35 pm
LIR
- BZN
2 stops22h 30m
American Airlines
Deal found 4/15![American Airlines logo]()
$715
This Delta deal was found by Cheapflights users on 4/14. 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.
Thu 8/1311:27 am
BZN
- LIR
2 stops24h 33m
Delta
Wed 8/191:25 pm
LIR
- BZN
1 stop21h 34m
Delta
Deal found 4/14![Delta logo]()
$904
This United Airlines deal was found by Cheapflights users on 4/15. 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 5/36:35 am
BIL
- LIR
1 stop8h 44m
United Airlines
Thu 5/71:20 pm
LIR
- BIL
2 stops20h 20m
United Airlines
Deal found 4/15![United Airlines logo]()
$683
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/83:05 pm
BZN
- LIR
2 stops15h 32m
Alaska Airlines
Sun 8/166:39 pm
LIR
- BZN
2 stops23h 39m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$643
This American Airlines deal was found by Cheapflights users on 4/16. 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 6/84:16 pm
BZN
- SJO
2 stops20h 53m
American Airlines
Mon 6/152:09 pm
SJO
- BZN
1 stop30h 35m
American Airlines
Deal found 4/16![American Airlines logo]()
$755
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:28 pm
FCA
- SJO
2 stops52h 05m
Alaska Airlines
Sun 5/1712:53 am
SJO
- FCA
2 stops16h 07m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$661
This Expedia deal was found by Cheapflights users on 4/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2410:26 am
BZN
- SJO
3 stops36h 49m
Multiple Airlines
Sun 6/281:06 am
SJO
- BZN
2 stops22h 13m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,218
Last-minute flights from Montana to Costa RicaDiscover last-minute flight deals from Montana to Costa Rica. Data last updated April 19, 2026 and is based on user searches.
Discover last-minute flight deals from Montana to Costa Rica. Data last updated April 19, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/17. 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 4/177:00 am
BIL
- SJO
1 stop14h 15m
United Airlines
Fri 4/241:25 pm
SJO
- BIL
2 stops20h 13m
United Airlines
Deal found 4/17![United Airlines logo]()
$565
This United Airlines deal was found by Cheapflights users on 4/16. 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 4/205:51 pm
BIL
- SJO
2 stops16h 20m
United Airlines
Wed 4/2211:13 am
SJO
- BIL
2 stops22h 27m
United Airlines
Deal found 4/16![United Airlines logo]()
$485
This United Airlines deal was found by Cheapflights users on 4/15. 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 4/256:00 am
FCA
- SJO
1 stop15h 15m
United Airlines
Mon 5/47:55 am
SJO
- FCA
2 stops29h 36m
United Airlines
Deal found 4/15![United Airlines logo]()
$565
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/273:55 pm
MSO
- SJO
2 stops31h 50m
Alaska Airlines
Mon 5/1812:53 am
SJO
- MSO
2 stops18h 29m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$561
This American Airlines deal was found by Cheapflights users on 4/17. 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 4/296:45 am
MSO
- SJO
1 stop14h 51m
American Airlines
Sat 8/221:29 pm
SJO
- MSO
2 stops23h 06m
American Airlines
Deal found 4/17![American Airlines logo]()
$505
This Expedia deal was found by Cheapflights users on 4/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:28 pm
FCA
- SJO
2 stops28h 17m
Alaska Airlines
Fri 5/812:55 am
SJO
- FCA
2 stops46h 56m
Alaska Airlines
Deal found 4/18![Alaska Airlines logo]()
$500
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/123:55 pm
MSO
- SJO
2 stops55h 38m
Alaska Airlines
Mon 5/1812:53 am
SJO
- MSO
2 stops23h 06m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$558
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/184:18 pm
BZN
- LIR
2 stops19h 52m
United Airlines
Fri 5/2911:10 am
LIR
- BZN
1 stop9h 29m
United Airlines
Deal found 4/16![United Airlines logo]()
$580
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/244:19 pm
MSO
- SJO
1 stop14h 56m
United Airlines
Fri 5/2912:30 am
SJO
- MSO
2 stops15h 50m
United Airlines
Deal found 4/16![United Airlines logo]()
$525
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:02 pm
MSO
- SJO
2 stops51h 31m
Alaska Airlines
Fri 6/512:53 am
SJO
- MSO
2 stops37h 50m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$506
This American Airlines deal was found by Cheapflights users on 4/15. 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 5/306:45 am
MSO
- SJO
1 stop15h 57m
American Airlines
Sat 6/61:59 pm
SJO
- MSO
2 stops22h 50m
American Airlines
Deal found 4/15![American Airlines logo]()
$508
This American Airlines deal was found by Cheapflights users on 4/15. 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 5/313:50 pm
FCA
- SJO
2 stops21h 09m
American Airlines
Sun 6/71:59 pm
SJO
- FCA
2 stops21h 36m
American Airlines
Deal found 4/15![American Airlines logo]()
$510
One-way flights from Montana to Costa RicaSearch for one-way flight options from Montana to Costa Rica. Find affordable one-way fares based on user searches. Data last updated April 19, 2026.
Search for one-way flight options from Montana to Costa Rica. Find affordable one-way fares based on user searches. Data last updated April 19, 2026.
This United Airlines deal was found by Cheapflights users on 4/15. 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 5/22:33 pm
FCA
- SJO
2 stops14h 57m
United Airlines
Deal found 4/15![United Airlines logo]()
$179
This Alaska Airlines deal was found by Cheapflights users on 4/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:26 am
BZN
- LIR
2 stops20h 11m
Alaska Airlines
Deal found 4/18![Alaska Airlines logo]()
$211
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:35 am
FCA
- SJO
2 stops17h 10m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$219
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:28 pm
FCA
- SJO
2 stops28h 17m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$224
This American Airlines deal was found by Cheapflights users on 4/15. 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 5/303:50 pm
FCA
- SJO
2 stops21h 09m
American Airlines
Deal found 4/15![American Airlines logo]()
$229
This United Airlines deal was found by Cheapflights users on 4/15. 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 5/274:11 pm
FCA
- SJO
2 stops18h 00m
United Airlines
Deal found 4/15![United Airlines logo]()
$239
This United Airlines deal was found by Cheapflights users on 4/15. 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 6/25:28 pm
FCA
- SJO
2 stops29h 11m
United Airlines
Deal found 4/15![United Airlines logo]()
$262
This United Airlines deal was found by Cheapflights users on 4/15. 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 5/76:00 am
FCA
- SJO
2 stops47h 30m
United Airlines
Deal found 4/15![United Airlines logo]()
$265
This United Airlines deal was found by Cheapflights users on 4/15. 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 4/306:00 am
FCA
- SJO
2 stops37h 37m
United Airlines
Deal found 4/15![United Airlines logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:35 am
FCA
- SJO
2 stops17h 10m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/81:33 pm
FCA
- SJO
3 stops46h 12m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$271
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:28 pm
FCA
- SJO
2 stops28h 17m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$274
Find flight deals from Montana to Costa Rica
Keep the following information in mind while searching for Montana to Costa Rica flight deals. Data was last updated April 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $444 (Alaska Airlines) |
One-way from | $179 (United Airlines) |
Popular in | June |
Cheapest in | November |
Average price | $574 |
Cheapflights Fare Finder
Customize your flight search to find flights from Montana 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 19, 2026.
Use the filters below to find and compare flights from Montana to Costa Rica that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BozemanLiberia
BZN - LIR
BZNLIR
Bozeman Gallatin Field
Mon 8/10
3:05 pm-5:29 pm
2 stops26h 24m
Liberia
Mon 8/17
6:39 pm-1:24 pm
2 stops42h 45m
$473
KalispellSan José
FCA - SJO
FCASJO
Kalispell Glacier Park
Tue 5/5
7:28 pm-11:45 pm
2 stops28h 17m
San José Juan Santamaria Intl
Fri 5/8
12:55 am-11:51 pm
2 stops46h 56m
$500
KalispellSan José
FCA - SJO
FCASJO
Kalispell Glacier Park
Sun 5/31
3:50 pm-12:59 pm
2 stops21h 09m
San José Juan Santamaria Intl
Sun 6/7
11:59 pm-11:35 am
1 stop11h 36m
$510
BozemanSan José
BZN - SJO
BZNSJO
Bozeman Gallatin Field
Sat 6/6
4:16 pm-1:09 pm
2 stops20h 53m
San José Juan Santamaria Intl
Sat 6/13
11:59 pm-8:44 pm
1 stop20h 45m
$515
MissoulaSan José
MSO - SJO
MSOSJO
Missoula Johnson-Bell Field
Wed 9/23
5:32 pm-12:26 pm
2 stops18h 54m
San José Juan Santamaria Intl
Wed 9/30
1:30 pm-1:27 pm
2 stops23h 57m
$525
MissoulaSan José
MSO - SJO
MSOSJO
Missoula Johnson-Bell Field
Sun 5/24
5:20 pm-10:39 pm
2 stops29h 19m
San José Juan Santamaria Intl
Fri 5/29
12:30 am-4:20 pm
2 stops15h 50m
$525
KalispellSan José
FCA - SJO
FCASJO
Kalispell Glacier Park
Tue 8/18
4:54 pm-1:52 pm
2 stops20h 58m
San José Juan Santamaria Intl
Mon 8/24
1:08 pm-12:34 pm
2 stops23h 26m
$545
KalispellSan José
FCA - SJO
FCASJO
Kalispell Glacier Park
Thu 9/17
3:29 pm-11:05 am
2 stops19h 36m
San José Juan Santamaria Intl
Thu 9/24
12:57 pm-11:37 am
1 stop22h 40m
$557
MissoulaSan José
MSO - SJO
MSOSJO
Missoula Johnson-Bell Field
Tue 5/12
3:55 pm-11:33 pm
2 stops55h 38m
San José Juan Santamaria Intl
Mon 5/18
12:53 am-11:59 pm
2 stops23h 06m
$558
BozemanLiberia
BZN - LIR
BZNLIR
Bozeman Gallatin Field
Tue 8/11
6:03 am-6:37 am
2 stops24h 34m
Liberia
Sun 8/16
6:39 pm-2:09 pm
2 stops19h 30m
$577
Showing 1-10 of 37 resultsSorted by cheapest first
Best time to book a flight from Montana to Costa Rica
Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Montana with our price prediction graph.
BZN-LIR
FCA-SJO
MSO-SJO
BZN-SJO
BIL-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 Montana to Costa Rica
USMT-CR0
BZN-LIR
FCA-SJO
MSO-SJO
BZN-SJO
What is the cheapest month to book a flight from Montana to Costa Rica?
Currently, January is the cheapest month in which you can book a flight from Montana to Costa Rica (average of $188). Flying from Montana to Costa Rica in May is currently the most expensive (average of $470). 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 Montana 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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
Alternative routes for Montana 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 Montana to Costa Rica by cabin class
Find flights from Montana to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Montana and Costa Rica flights
Browse other Montana and Costa Rica flight options. Last updated on April 19, 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 Montana after your stay in Costa Rica
Montana to Costa Rica flights
Consider these flights traveling from Montana to Costa Rica.
Top 4 airlines flying from Montana to Costa Rica
Discover the top 4 airlines that operate flights from Montana 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 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$188 | Average$667 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$397 | Average$667 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$466 | Average$665 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$509 | Average$604 | FlexibilityNo cancel fee | On-time75% |