$258+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SJO
Aug 31 — Sep 71
Round-trip
1 adult, Economy
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Best
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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 August 1, 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 August 1, 2026.
This United Airlines deal was found by Cheapflights users on 7/31. 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 10/312:37 pm
MSO
- SJO
2 stops14h 48m
United Airlines
Tue 11/38:45 am
SJO
- MSO
2 stops14h 02m
United Airlines
Deal found 7/31![United Airlines logo]()
$505
This Delta deal was found by Cheapflights users on 7/30. 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 9/231:27 pm
MSO
- SJO
2 stops22h 27m
Delta
Wed 9/301:19 pm
SJO
- MSO
2 stops23h 18m
Delta
Deal found 7/30![Delta logo]()
$652
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/205:52 pm
MSO
- SJO
2 stops20h 00m
American Airlines
Tue 9/11:03 pm
SJO
- MSO
2 stops28h 17m
American Airlines
Deal found 7/30![American Airlines logo]()
$667
This United Airlines deal was found by Cheapflights users on 7/31. 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 9/236:15 am
MSO
- SJO
2 stops37h 22m
United Airlines
Wed 9/301:25 pm
SJO
- MSO
2 stops24h 07m
United Airlines
Deal found 7/31![United Airlines logo]()
$669
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/204:11 pm
MSO
- SJO
1 stop15h 04m
United Airlines
Tue 9/17:55 am
SJO
- MSO
2 stops38h 35m
United Airlines
Deal found 7/30![United Airlines logo]()
$670
This American Airlines deal was found by Cheapflights users on 7/31. 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 9/231:27 pm
MSO
- SJO
1 stop24h 30m
American Airlines
Wed 9/302:57 pm
SJO
- MSO
2 stops21h 14m
American Airlines
Deal found 7/31![American Airlines logo]()
$747
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 August 1, 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 August 1, 2026.
This United Airlines deal was found by Cheapflights users on 7/31. 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 10/312:37 pm
MSO
- SJO
2 stops14h 48m
United Airlines
Tue 11/38:45 am
SJO
- MSO
2 stops14h 02m
United Airlines
Deal found 7/31![United Airlines logo]()
$505
This KAYAK deal was found by Cheapflights users on 8/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/185:32 pm
MSO
- SJO
2 stops23h 44m
Multiple Airlines
Wed 1/271:15 am
SJO
- MSO
2 stops15h 55m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$647
This Delta deal was found by Cheapflights users on 7/29. 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.
Tue 1/56:10 pm
MSO
- SJO
2 stops17h 35m
Delta
Tue 1/127:05 am
SJO
- MSO
2 stops18h 26m
Delta
Deal found 7/29![Delta logo]()
$652
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/205:52 pm
MSO
- SJO
2 stops20h 00m
American Airlines
Tue 9/11:03 pm
SJO
- MSO
2 stops28h 17m
American Airlines
Deal found 7/30![American Airlines logo]()
$667
This Delta deal was found by Cheapflights users on 7/30. 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 9/231:27 pm
MSO
- SJO
2 stops22h 27m
Delta
Wed 9/301:19 pm
SJO
- MSO
2 stops23h 18m
Delta
Deal found 7/30![Delta logo]()
$652
This United Airlines deal was found by Cheapflights users on 7/31. 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 9/236:15 am
MSO
- SJO
2 stops37h 22m
United Airlines
Wed 9/301:25 pm
SJO
- MSO
2 stops24h 07m
United Airlines
Deal found 7/31![United Airlines logo]()
$669
Last-minute flights from Missoula to Costa RicaDiscover last-minute flight deals from Missoula to Costa Rica. Data last updated August 1, 2026 and is based on user searches.
Discover last-minute flight deals from Missoula to Costa Rica. Data last updated August 1, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/205:52 pm
MSO
- SJO
2 stops20h 00m
American Airlines
Tue 9/11:03 pm
SJO
- MSO
2 stops28h 17m
American Airlines
Deal found 7/30![American Airlines logo]()
$667
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/204:11 pm
MSO
- SJO
1 stop15h 04m
United Airlines
Tue 9/17:55 am
SJO
- MSO
2 stops38h 35m
United Airlines
Deal found 7/30![United Airlines logo]()
$670
This KAYAK deal was found by Cheapflights users on 8/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:11 pm
MSO
- SJO
1 stop15h 04m
Multiple Airlines
Tue 9/17:55 am
SJO
- MSO
2 stops26h 02m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$819
One-way flights from Missoula to Costa RicaSearch for one-way flight options from Missoula to Costa Rica. Find affordable one-way fares based on user searches. Data last updated August 1, 2026.
Search for one-way flight options from Missoula to Costa Rica. Find affordable one-way fares based on user searches. Data last updated August 1, 2026.
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:14 pm
MSO
- SJO
2 stops22h 46m
Delta
Deal found 7/28![Delta logo]()
$258
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/111:14 pm
MSO
- SJO
2 stops22h 46m
Delta
Deal found 7/28![Delta logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:19 pm
MSO
- SJO
3 stops47h 56m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:37 am
MSO
- SJO
3 stops52h 18m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$391
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Mon 10/121:05 pm
MSO
- SJO
1 stop24h 55m
American Airlines
Deal found 7/28![American Airlines logo]()
$392
This American Airlines deal was found by Cheapflights users on 7/28. 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 10/131:05 pm
MSO
- SJO
1 stop24h 55m
American Airlines
Deal found 7/28![American Airlines logo]()
$454
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:03 am
MSO
- SJO
3 stops32h 52m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$489
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Sun 10/111:05 pm
MSO
- SJO
1 stop24h 55m
American Airlines
Deal found 7/28![American Airlines logo]()
$535
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 August 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $505 (United Airlines) |
One-way from | $258 (Delta) |
Popular in | July |
Cheapest in | October |
Average price | $703 |
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 August 1, 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
Quickest round-trip
MissoulaSan José
MSO - SJO
MSOSJO
Missoula Johnson-Bell Field
Sat 10/31
2:37 pm-5:25 am
2 stops14h 48m
San José Juan Santamaria Intl
Tue 11/3
8:45 am-9:47 pm
2 stops14h 02m
$505
MissoulaSan José
MSO - SJO
MSOSJO
Missoula Johnson-Bell Field
Mon 1/18
5:32 pm-6:16 pm
2 stops23h 44m
San José Juan Santamaria Intl
Wed 1/27
1:15 am-4:10 pm
2 stops15h 55m
$647
MissoulaSan José
MSO - SJO
MSOSJO
Missoula Johnson-Bell Field
Tue 1/5
6:10 pm-12:45 pm
2 stops17h 35m
San José Juan Santamaria Intl
Tue 1/12
7:05 am-12:31 am
2 stops18h 26m
$652
MissoulaSan José
MSO - SJO
MSOSJO
Missoula Johnson-Bell Field
Wed 9/23
1:27 pm-11:54 am
2 stops22h 27m
San José Juan Santamaria Intl
Wed 9/30
1:19 pm-12:37 pm
2 stops23h 18m
$652
MissoulaSan José
MSO - SJO
MSOSJO
Missoula Johnson-Bell Field
Thu 8/20
5:52 pm-1:52 pm
2 stops20h 00m
San José Juan Santamaria Intl
Tue 9/1
1:03 pm-5:20 pm
2 stops28h 17m
$667
MissoulaSan José
MSO - SJO
MSOSJO
Missoula Johnson-Bell Field
Wed 9/23
6:15 am-7:37 pm
2 stops37h 22m
San José Juan Santamaria Intl
Wed 9/30
1:25 pm-1:32 pm
2 stops24h 07m
$669
Cheapest one-way
Quickest one-way
MissoulaSan José
MSO - SJO
MSOSJO
Missoula Johnson-Bell Field
Tue 10/13
1:14 pm-12:00 pm
2 stops22h 46m
$258
MissoulaSan José
MSO - SJO
MSOSJO
Missoula Johnson-Bell Field
Mon 10/12
1:14 pm-12:00 pm
2 stops22h 46m
$299
MissoulaSan José
MSO - SJO
MSOSJO
Missoula Johnson-Bell Field
Tue 10/13
12:19 pm-12:15 pm
3 stops47h 56m
$325
MissoulaSan José
MSO - SJO
MSOSJO
Missoula Johnson-Bell Field
Sun 10/11
11:37 am-3:55 pm
3 stops52h 18m
$391
Showing 1-10 of 11 resultsSorted 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 August 1, 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
Crew
8.1
Overall
7.4
Entertainment
7.1
Food
6.7
Comfort
7.3
Reviews
1 / 20
6.0
GoodDawn,Jul 2026
ORD - GRR
Boarding
7.7
Crew
8.1
Overall
7.4
Entertainment
7.1
Food
6.7
Comfort
7.3
Reviews
1 / 20
6.0
GoodDawn,Jul 2026
ORD - GRR
Boarding
7.7
Crew
8.1
Overall
7.4
Entertainment
7.1
Food
6.7
Comfort
7.3
Reviews
1 / 20
6.0
GoodDawn,Jul 2026
ORD - GRR
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 August 1, 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 2,558,603 searches. Data last updated August 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$188 | Average$669 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$465 | Average$689 | FlexibilityNo cancel fee | On-time71% |