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Costa Rica

$405+ Cheap flights from Missoula (MSO) to Costa Rica

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SJO
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
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Cheap flight deals from Missoula to Costa Rica

Cheapest flights from Missoula to Costa Rica
Explore the most affordable flight options available from Missoula to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 12, 2026.

This United Airlines deal was found by Cheapflights users on 3/10. 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 11/85:32 pm
MSO
-
SJO
2 stops16h 53m
United Airlines
Tue 11/172:20 pm
SJO
-
MSO
2 stops24h 07m
United Airlines
Deal found 3/10$405
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 5/248:02 pm
MSO
-
SJO
2 stops27h 31m
Alaska Airlines
Fri 5/2912:53 am
SJO
-
MSO
2 stops35h 23m
Alaska Airlines
Deal found 3/9$459
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/222:38 pm
MSO
-
SJO
2 stops19h 33m
United Airlines
Wed 4/291:25 pm
SJO
-
MSO
2 stops24h 10m
United Airlines
Deal found 3/8$465
This Alaska Airlines deal was found by Cheapflights users on 3/10. 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 11/56:40 am
MSO
-
SJO
2 stops16h 17m
Alaska Airlines
Thu 11/191:45 am
SJO
-
MSO
2 stops38h 38m
Alaska Airlines
Deal found 3/10$479
This American Airlines deal was found by Cheapflights users on 3/9. 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 9/231:50 pm
MSO
-
SJO
2 stops28h 40m
American Airlines
Wed 9/307:00 am
SJO
-
MSO
2 stops16h 03m
American Airlines
Deal found 3/9$485
This United Airlines deal was found by Cheapflights users on 3/10. 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 5/135:08 pm
MSO
-
SJO
2 stops19h 13m
United Airlines
Tue 5/191:25 pm
SJO
-
MSO
2 stops24h 10m
United Airlines
Deal found 3/10$491
This American Airlines deal was found by Cheapflights users on 3/8. 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 12/301:18 pm
MSO
-
SJO
1 stop29h 59m
American Airlines
Sat 1/97:09 am
SJO
-
MSO
1 stop30h 41m
American Airlines
Deal found 3/8$500
This American Airlines deal was found by Cheapflights users on 3/8. 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 4/226:45 am
MSO
-
SJO
1 stop30h 37m
American Airlines
Wed 4/2911:35 pm
SJO
-
MSO
1 stop22h 10m
American Airlines
Deal found 3/8$501
This American Airlines deal was found by Cheapflights users on 3/11. 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 5/244:44 pm
MSO
-
SJO
2 stops21h 24m
American Airlines
Sat 5/303:08 pm
SJO
-
MSO
2 stops21h 41m
American Airlines
Deal found 3/11$505
This United Airlines deal was found by Cheapflights users on 3/11. 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
Sat 5/306:00 am
SJO
-
MSO
1 stop16h 38m
United Airlines
Deal found 3/11$510
This American Airlines deal was found by Cheapflights users on 3/10. 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 5/136:45 am
MSO
-
SJO
1 stop14h 51m
American Airlines
Tue 5/192:08 pm
SJO
-
MSO
1 stop31h 37m
American Airlines
Deal found 3/10$511

Find flight deals from Missoula to Costa Rica

Keep the following information in mind while searching for Missoula to Costa Rica flight deals. Data was last updated March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$439
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$626
Provider with most accurate pricing for Missoula Johnson-Bell Field-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Missoula Johnson-Bell Field-San José Juan Santamaria Intl flights.
Search Deals
From Missoula Johnson-Bell Field to Costa Rica
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($83 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missoula 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 March 12, 2026.
Use the filters below to find and compare flights from Missoula to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MissoulaSan José

MSO - SJO

MSOSJO

Missoula Johnson-Bell Field

Sun 5/24

8:02 pm-11:33 pm

2 stops27h 31m

San José Juan Santamaria Intl

Fri 5/29

12:53 am-12:16 pm

2 stops35h 23m

$459

MissoulaSan José

MSO - SJO

MSOSJO

Missoula Johnson-Bell Field

Wed 4/22

2:38 pm-10:11 am

2 stops19h 33m

San José Juan Santamaria Intl

Wed 4/29

1:25 pm-1:35 pm

2 stops24h 10m

$465

MissoulaSan José

MSO - SJO

MSOSJO

Missoula Johnson-Bell Field

Wed 5/13

7:45 am-11:33 pm

2 stops15h 48m

San José Juan Santamaria Intl

Mon 5/18

12:53 am-11:59 pm

2 stops23h 06m

$465

MissoulaSan José

MSO - SJO

MSOSJO

Missoula Johnson-Bell Field

Wed 5/13

5:08 pm-12:21 pm

2 stops19h 13m

San José Juan Santamaria Intl

Tue 5/19

1:25 pm-1:35 pm

2 stops24h 10m

$491
Quickest round-trip

MissoulaSan José

MSO - SJO

MSOSJO

Missoula Johnson-Bell Field

Sun 5/24

4:19 pm-7:15 am

1 stop14h 56m

San José Juan Santamaria Intl

Sat 5/30

6:00 am-10:38 pm

1 stop16h 38m

$510

MissoulaSan José

MSO - SJO

MSOSJO

Missoula Johnson-Bell Field

Thu 4/30

5:08 pm-5:30 am

2 stops36h 22m

San José Juan Santamaria Intl

Sat 5/9

7:55 am-1:35 pm

2 stops29h 40m

$530

MissoulaSan José

MSO - SJO

MSOSJO

Missoula Johnson-Bell Field

Thu 6/18

4:19 pm-7:15 am

1 stop14h 56m

San José Juan Santamaria Intl

Sat 7/4

12:30 am-11:56 pm

2 stops23h 26m

$545

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Sorted by cheapest first

Best time to book a flight from Missoula to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Missoula 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 Missoula to Costa Rica

What is the cheapest month to book a flight from Missoula to Costa Rica?

Currently, January is the cheapest month in which you can book a flight from Missoula to Costa Rica (average of $188). Flying from Missoula to Costa Rica in December is currently the most expensive (average of $1,173). 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.

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Rica. Reviews last updated March 12, 2026.
Read reviews from past customers who have flown United Airlines and American Airlines from Missoula to Costa Rica. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,418 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,418 reviews
United Airlines
7.4
Good
9,418 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,435 reviews
United Airlines
7.4
Good
9,418 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Missoula to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Missoula to Costa Rica?

    For a flight from Missoula to Costa Rica, you will be flying from Johnson-Bell Field. Missoula Johnson-Bell Field (MSO) is just 5.5 mi from the center of the city.

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

    For as low as $465, Alaska Airlines can have you in Costa Rica from Missoula in 19h 33m. There are 3091 mi between Missoula and Costa Rica. 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 Missoula to Costa Rica that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Missoula 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 Missoula to Costa Rica?

    Currently, January is the cheapest month in which you can book a flight from Missoula to Costa Rica (average of $188). Flying from Missoula to Costa Rica in December is currently the most expensive (average of $1,173). 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 Missoula to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Liberia flights
Missoula to San José flights
Bozeman to San José flights
Billings to San José flights

Top 2 airlines flying from Missoula to Costa Rica

Discover the top 2 airlines that operate flights from Missoula 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 March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$196Average$647FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$457Average$676FlexibilityNo cancel feeOn-time71%

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