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$144+ 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SJO
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from Montana to Costa Rica

Cheapest flights from Montana to Costa Rica
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 January 28, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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.
Thu 4/164:20 pm
BZN
-
SJO
1 stop14h 55m
United Airlines
Tue 4/2811:13 am
SJO
-
BZN
2 stops22h 34m
United Airlines
Deal found 1/26$335
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Thu 4/94:19 pm
BZN
-
SJO
2 stops17h 52m
United Airlines
Thu 4/1611:13 am
SJO
-
BZN
2 stops22h 34m
United Airlines
Deal found 1/26$387
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/135:51 pm
BIL
-
SJO
2 stops18h 30m
United Airlines
Sat 4/186:00 am
SJO
-
BIL
2 stops14h 57m
United Airlines
Deal found 1/28$395
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:33 pm
COD
-
SJO
2 stops20h 38m
United Airlines
Sat 4/256:00 am
SJO
-
COD
2 stops16h 45m
United Airlines
Deal found 1/28$406
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 2/261:47 pm
BZN
-
SJO
2 stops19h 37m
American Airlines
Fri 3/61:31 pm
SJO
-
BZN
2 stops22h 12m
American Airlines
Deal found 1/27$424
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/255:08 pm
MSO
-
SJO
2 stops18h 48m
United Airlines
Wed 3/42:20 pm
SJO
-
MSO
2 stops24h 13m
United Airlines
Deal found 1/27$431
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Wed 2/251:20 pm
MSO
-
SJO
2 stops20h 04m
American Airlines
Wed 3/47:00 am
SJO
-
MSO
1 stop30h 50m
American Airlines
Deal found 1/27$433
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/141:33 pm
COD
-
SJO
2 stops20h 38m
United Airlines
Sat 4/186:00 am
SJO
-
COD
2 stops16h 45m
United Airlines
Deal found 1/28$435
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 3/171:36 pm
BZN
-
SJO
2 stops21h 50m
American Airlines
Tue 3/241:50 pm
SJO
-
BZN
2 stops23h 07m
American Airlines
Deal found 1/28$435
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Mon 2/235:08 pm
MSO
-
SJO
2 stops19h 07m
United Airlines
Fri 3/69:40 am
SJO
-
MSO
1 stop28h 07m
United Airlines
Deal found 1/25$441
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/204:18 pm
BZN
-
SJO
1 stop14h 57m
United Airlines
Tue 5/2611:13 am
SJO
-
BZN
2 stops22h 15m
United Airlines
Deal found 1/28$445
This United Airlines deal was found by Cheapflights users on 1/26. 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 5/242:27 pm
MSO
-
SJO
2 stops19h 44m
United Airlines
Sat 5/306:00 am
SJO
-
MSO
1 stop16h 25m
United Airlines
Deal found 1/26$445

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 January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$335
(United Airlines)

One-way from

$144
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$462
Provider with most accurate pricing for Bozeman Gallatin Field-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bozeman Gallatin Field-San José Juan Santamaria Intl flights.
Search Deals
From Montana to Costa Rica
Search Deals
One-way flight from Montana to Costa Rica
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 28, 2026.
Use the filters below to find and compare flights from Montana to Costa Rica that are best for you.

Fly from

Montana

Fly to

Costa Rica

Route

Depart

Return

Price

BozemanSan José

BZN - SJO

BZNSJO

Bozeman Gallatin Field

Thu 4/16

4:20 pm-7:15 am

1 stop14h 55m

San José Juan Santamaria Intl

Tue 4/28

11:13 am-9:47 am

2 stops22h 34m

$335

BozemanSan José

BZN - SJO

BZNSJO

Bozeman Gallatin Field

Thu 4/9

4:19 pm-10:11 am

2 stops17h 52m

San José Juan Santamaria Intl

Thu 4/16

11:13 am-9:47 am

2 stops22h 34m

$387

BillingsSan José

BIL - SJO

BILSJO

Billings Logan Intl

Tue 4/14

2:35 pm-10:11 am

2 stops19h 36m

San José Juan Santamaria Intl

Sat 4/18

6:00 am-8:57 pm

2 stops14h 57m

$395

CodySan José

COD - SJO

CODSJO

Cody E.E. Faust

Tue 4/21

1:33 pm-10:11 am

2 stops20h 38m

San José Juan Santamaria Intl

Sat 4/25

6:00 am-10:45 pm

2 stops16h 45m

$406

BozemanSan José

BZN - SJO

BZNSJO

Bozeman Gallatin Field

Thu 2/26

3:36 pm-10:24 am

2 stops17h 48m

San José Juan Santamaria Intl

Thu 3/5

3:59 pm-12:57 pm

2 stops21h 58m

$424

BozemanSan José

BZN - SJO

BZNSJO

Bozeman Gallatin Field

Thu 2/26

1:47 pm-10:24 am

2 stops19h 37m

San José Juan Santamaria Intl

Fri 3/6

1:31 pm-10:43 am

2 stops22h 12m

$424

MissoulaSan José

MSO - SJO

MSOSJO

Missoula Johnson-Bell Field

Wed 2/25

5:08 pm-12:56 pm

2 stops18h 48m

San José Juan Santamaria Intl

Wed 3/4

2:20 pm-1:33 pm

2 stops24h 13m

$431

MissoulaSan José

MSO - SJO

MSOSJO

Missoula Johnson-Bell Field

Thu 2/26

1:20 pm-8:12 pm

1 stop29h 52m

San José Juan Santamaria Intl

Mon 3/2

3:59 pm-12:50 pm

2 stops21h 51m

$433

MissoulaSan José

MSO - SJO

MSOSJO

Missoula Johnson-Bell Field

Wed 2/25

1:20 pm-10:24 am

2 stops20h 04m

San José Juan Santamaria Intl

Wed 3/4

7:00 am-12:50 pm

1 stop30h 50m

$433

BillingsSan José

BIL - SJO

BILSJO

Billings Logan Intl

Mon 4/13

5:51 pm-10:11 am

2 stops16h 20m

San José Juan Santamaria Intl

Sat 4/18

6:40 am-8:57 pm

1 stop14h 17m

$434

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 41 results
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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.
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

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 $549). 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.

  • How long is the flight from Montana to Costa Rica?

    For as low as $335, United Airlines can have you in Costa Rica from Montana in 14h 55m. Montana and Costa Rica are separated by a distance of 2938 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

  • How can I find direct flights from Montana to Costa Rica?

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

  • Can I find deals for business class flights from Montana to Costa Rica?

    Yes. Cheapflights offers flight deals from Montana 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.

  • 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 $549). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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 for Montana to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$196Average$684FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$398Average$689FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$465Average$604FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$466Average$700FlexibilityNo cancel feeOn-time63%

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