HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Costa Rica

$325+ Cheap flights from Missoula (MSO) 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SJO
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Missoula 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 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 January 28, 2026.

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 1/25. 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 1/26. 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
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.
Mon 2/25:15 pm
MSO
-
SJO
2 stops43h 00m
United Airlines
Tue 2/102:20 pm
SJO
-
MSO
2 stops32h 31m
United Airlines
Deal found 1/26$457
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/244:40 pm
MSO
-
SJO
2 stops20h 27m
American Airlines
Sat 5/303:12 pm
SJO
-
MSO
2 stops21h 23m
American Airlines
Deal found 1/26$464
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.
Tue 9/81:51 pm
MSO
-
SJO
2 stops21h 14m
American Airlines
Tue 9/227:40 am
SJO
-
MSO
1 stop28h 52m
American Airlines
Deal found 1/27$474

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 January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$431
(United Airlines)

One-way from

$325
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$598
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
One-way flight from Missoula Johnson-Bell Field to Costa Rica
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($165 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($45 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 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 January 28, 2026.
Use the filters below to find and compare flights from Missoula to Costa Rica that are best for you.

Fly from

Missoula

Fly to

Costa Rica

Route

Depart

Return

Price

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

MissoulaSan José

MSO - SJO

MSOSJO

Missoula Johnson-Bell Field

Mon 2/23

5:08 pm-1:15 pm

2 stops19h 07m

San José Juan Santamaria Intl

Fri 3/6

9:40 am-12:47 pm

1 stop28h 07m

$441

MissoulaSan José

MSO - SJO

MSOSJO

Missoula Johnson-Bell Field

Sun 5/24

2:27 pm-10:11 am

2 stops19h 44m

San José Juan Santamaria Intl

Sat 5/30

6:00 am-10:25 pm

1 stop16h 25m

$445

MissoulaSan José

MSO - SJO

MSOSJO

Missoula Johnson-Bell Field

Thu 2/19

5:08 pm-12:56 pm

2 stops18h 48m

$325

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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 August is currently the most expensive (average of $712). 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 January 28, 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
9,212 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

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
9,212 reviews
United Airlines
7.4
Good
9,212 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

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
7.2
Good
11,201 reviews
United Airlines
7.4
Good
9,212 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Overall

7.4

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 $431, United Airlines can have you in Costa Rica from Missoula in 18h 48m. 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 August is currently the most expensive (average of $712). 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.

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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$196Average$662FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$457Average$686FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Cookie settings©2026 Cheapflights