$683+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SJO
Oct 18 — Oct 251
Round-trip
1 adult, Economy
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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
Best
Last-minute
Cheapest flights from Missoula to Costa RicaExplore 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 September 18, 2026.
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 September 18, 2026.
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/171:48 pm -
2 stops24h 12m
Tue 11/172:07 pm -
2 stops23h 29m
Deal found 9/14![American Airlines logo]()
$776
This United Airlines deal was found by Cheapflights users on 9/13. 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 9/234:15 pm -
1 stop15h 00m
Wed 9/301:25 pm -
2 stops20h 32m
Deal found 9/13![United Airlines logo]()
$843
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 10/174:15 pm -
1 stop15h 00m
Tue 11/178:45 am -
2 stops14h 02m
Deal found 9/14![United Airlines logo]()
$980
This FlightHub deal was found by Cheapflights users on 9/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:03 am -
3 stops49h 27m
Tue 11/177:45 am -
2 stops29h 37m
Deal found 9/14![Multiple Airlines logo]()
$1,022
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/129:50 am -
2 stops26h 32m
Sat 12/267:30 am -
2 stops39h 29m
Deal found 9/15![United Airlines logo]()
$1,110
Best flights from Missoula to Costa RicaDiscover carefully curated flight deals from Missoula to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
Discover carefully curated flight deals from Missoula to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
This United Airlines deal was found by Cheapflights users on 9/16. 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 2/12:27 pm -
2 stops44h 48m
Fri 2/58:45 am -
2 stops29h 42m
Deal found 9/16![United Airlines logo]()
$683
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/171:48 pm -
2 stops24h 12m
Tue 11/172:07 pm -
2 stops23h 29m
Deal found 9/14![American Airlines logo]()
$776
This Delta deal was found by Cheapflights users on 9/15. 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.
Wed 3/175:40 am -
2 stops30h 15m
Wed 3/241:20 pm -
2 stops30h 52m
Deal found 9/15![Delta logo]()
$788
This United Airlines deal was found by Cheapflights users on 9/15. 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 3/165:32 pm -
1 stop27h 28m
Tue 3/2312:25 pm -
2 stops25h 02m
Deal found 9/15![United Airlines logo]()
$767
This United Airlines deal was found by Cheapflights users on 9/15. 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 3/165:32 pm -
2 stops18h 50m
Thu 3/257:45 am -
2 stops32h 25m
Deal found 9/15![United Airlines logo]()
$782
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 10/174:15 pm -
1 stop15h 00m
Tue 11/178:45 am -
2 stops14h 02m
Deal found 9/14![United Airlines logo]()
$980
This United Airlines deal was found by Cheapflights users on 9/16. 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 12/216:00 am -
2 stops39h 32m
Mon 12/287:30 am -
2 stops39h 29m
Deal found 9/16![United Airlines logo]()
$1,276
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/129:50 am -
1 stop11h 10m
Sat 12/267:30 am -
1 stop15h 10m
Deal found 9/15![United Airlines logo]()
$1,372
Last-minute flights from Missoula to Costa RicaDiscover last-minute flight deals from Missoula to Costa Rica. Data last updated September 18, 2026 and is based on user searches.
Discover last-minute flight deals from Missoula to Costa Rica. Data last updated September 18, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/13. 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 9/234:15 pm -
1 stop15h 00m
Wed 9/301:25 pm -
2 stops20h 32m
Deal found 9/13![United Airlines logo]()
$843
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/171:48 pm -
2 stops24h 12m
Tue 11/172:07 pm -
2 stops23h 29m
Deal found 9/14![American Airlines logo]()
$776
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 10/174:15 pm -
1 stop15h 00m
Tue 11/178:45 am -
2 stops14h 02m
Deal found 9/14![United Airlines logo]()
$980
This FlightHub deal was found by Cheapflights users on 9/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:03 am -
3 stops49h 27m
Tue 11/177:45 am -
2 stops29h 37m
Deal found 9/14![Multiple Airlines logo]()
$1,022
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 September 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $674 (United Airlines) |
Popular in | July |
Cheapest in | October |
Average price | $463 |
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 7,457,451 searches. Data last updated September 18, 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
Cheapest round-trip
MissoulaSan José
MSO Missoula Johnson-Bell Field - SJO San José Juan Santamaria Intl
MSOSJO
Missoula Johnson-Bell Field
Mon 2/1
2:27 pm-12:15 pm
2 stops44h 48m
San José Juan Santamaria Intl
Fri 2/5
8:45 am-1:27 pm
2 stops29h 42m
$683
MissoulaSan José
MSO Missoula Johnson-Bell Field - SJO San José Juan Santamaria Intl
MSOSJO
Missoula Johnson-Bell Field
Tue 3/16
5:32 pm-9:00 pm
1 stop27h 28m
San José Juan Santamaria Intl
Tue 3/23
12:25 pm-1:27 pm
2 stops25h 02m
$767
MissoulaSan José
MSO Missoula Johnson-Bell Field - SJO San José Juan Santamaria Intl
MSOSJO
Missoula Johnson-Bell Field
Sat 10/17
1:48 pm-2:00 pm
2 stops24h 12m
San José Juan Santamaria Intl
Tue 11/17
2:07 pm-12:36 pm
2 stops23h 29m
$776
MissoulaSan José
MSO Missoula Johnson-Bell Field - SJO San José Juan Santamaria Intl
MSOSJO
Missoula Johnson-Bell Field
Tue 3/16
5:32 pm-12:22 pm
2 stops18h 50m
San José Juan Santamaria Intl
Thu 3/25
7:45 am-4:10 pm
2 stops32h 25m
$782
MissoulaSan José
MSO Missoula Johnson-Bell Field - SJO San José Juan Santamaria Intl
MSOSJO
Missoula Johnson-Bell Field
Wed 3/17
5:40 am-11:55 am
2 stops30h 15m
San José Juan Santamaria Intl
Wed 3/24
1:20 pm-8:12 pm
2 stops30h 52m
$788
MissoulaSan José
MSO Missoula Johnson-Bell Field - SJO San José Juan Santamaria Intl
MSOSJO
Missoula Johnson-Bell Field
Sat 10/17
4:15 pm-7:15 am
1 stop15h 00m
San José Juan Santamaria Intl
Tue 11/17
8:45 am-9:47 pm
2 stops14h 02m
$980
MissoulaSan José
MSO Missoula Johnson-Bell Field - SJO San José Juan Santamaria Intl
MSOSJO
Missoula Johnson-Bell Field
Mon 12/21
6:00 am-10:32 pm
2 stops39h 32m
San José Juan Santamaria Intl
Mon 12/28
7:30 am-9:59 pm
2 stops39h 29m
$1,276
Quickest round-trip
MissoulaSan José
MSO Missoula Johnson-Bell Field - SJO San José Juan Santamaria Intl
MSOSJO
Missoula Johnson-Bell Field
Sat 12/12
9:50 am-10:00 pm
1 stop11h 10m
San José Juan Santamaria Intl
Sat 12/26
7:30 am-9:40 pm
1 stop15h 10m
$1,372
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.
MSO-SJO
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
MSO-CR0
MSO-SJO
What is the cheapest month to book a flight from Missoula to Costa Rica?
Currently, October is the cheapest month in which you can book a flight from Missoula to Costa Rica (average of $332). Flying from Missoula to Costa Rica in July is currently the most expensive (average of $1,217). 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 September 18, 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.
Boarding
7.7
Comfort
7.3
Crew
8.1
Overall
7.4
Entertainment
7.1
Food
6.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Boarding
7.7
Comfort
7.3
Crew
8.1
Overall
7.4
Entertainment
7.1
Food
6.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Boarding
7.7
Comfort
7.3
Crew
8.1
Overall
7.4
Entertainment
7.1
Food
6.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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.
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Alternative routes for Missoula to Costa Rica
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Complete your trip
Complete your trip to Costa Rica by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Missoula to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missoula and Costa Rica flights
Browse other Missoula and Costa Rica flight options. Last updated on September 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated September 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$188 | Average$700 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$465 | Average$703 | FlexibilityNo cancel fee | On-time71% |