$398 Find Cheap Flights from Missoula to Costa Rica

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Missoula to Costa Rica departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Missoula to Costa Rica

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
San José
San José1 stop$398
Liberia
Liberia2 stops$493
San José
San José1 stop$398
Liberia
Liberia2 stops$493

Book Cheap Missoula to Costa Rica Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Missoula to Costa Rica that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Missoula to Costa Rica

Wed, Jan 21 - Fri, Jan 30
American Airlines Logo
7:00 am - 11:43 pm
MSO
-
SJO
15h 43m1 stop
American Airlines Logo
6:38 am - 8:45 pm
SJO
-
MSO
15h 07m1 stop
$398American Airlines
Wed, Jan 21 - Fri, Jan 30
American Airlines Logo
1:21 pm - 12:43 pm
MSO
-
SJO
22h 22m2 stops
American Airlines Logo
6:38 am - 8:45 pm
SJO
-
MSO
15h 07m1 stop
$403American Airlines
Wed, Jan 21 - Fri, Jan 30
United Airlines Logo
5:15 pm - 8:39 pm
MSO
-
SJO
26h 24m2 stops
United Airlines Logo
2:05 pm - 2:05 pm
SJO
-
MSO
25h 00m2 stops
$413United Airlines
Sun, May 24 - Sat, May 30
American Airlines Logo
3:52 pm - 11:15 am
MSO
-
SJO
19h 23m2 stops
American Airlines Logo
2:20 pm - 12:24 pm
SJO
-
MSO
22h 04m2 stops
$414American Airlines
Sun, May 24 - Sat, May 30
American Airlines Logo
3:52 pm - 11:15 am
MSO
-
SJO
19h 23m2 stops
American Airlines Logo
11:59 pm - 8:53 pm
SJO
-
MSO
20h 54m1 stop
$423American Airlines
Mon, Feb 23 - Thu, Mar 5
Alaska Airlines Logo
6:23 am - 12:07 am
MSO
-
SJO
16h 44m2 stops
Alaska Airlines Logo
1:27 am - 12:59 pm
SJO
-
MSO
36h 32m2 stops
$468Alaska Airlines
Mon, Feb 23 - Fri, Mar 6
American Airlines Logo
1:24 pm - 12:23 pm
MSO
-
SJO
21h 59m2 stops
American Airlines Logo
7:00 am - 12:54 pm
SJO
-
MSO
30h 54m1 stop
$473American Airlines
Wed, Feb 18 - Fri, Feb 27
American Airlines Logo
7:00 am - 10:43 pm
MSO
-
SJO
14h 43m1 stop
American Airlines Logo
3:04 pm - 12:54 pm
SJO
-
MSO
22h 50m2 stops
$478American Airlines
Wed, Feb 18 - Fri, Feb 27
American Airlines Logo
7:00 am - 10:43 pm
MSO
-
SJO
14h 43m1 stop
American Airlines Logo
7:00 am - 12:54 pm
SJO
-
MSO
30h 54m1 stop
$484American Airlines
Mon, Feb 23 - Fri, Mar 6
American Airlines Logo
1:24 pm - 2:53 pm
MSO
-
SJO
24h 29m2 stops
American Airlines Logo
7:00 am - 12:54 pm
SJO
-
MSO
30h 54m1 stop
$491American Airlines
Booking Insights

KAYAK's insights & trends for Missoula to Costa Rica flights

Get data-powered insights and trends into flights from Missoula to Costa Rica to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Missoula to Costa Rica?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Missoula to Costa Rica, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Missoula to Costa Rica is October, when tickets cost $332 (return) on average. On the other hand, the most expensive months are December and April, when the average cost of round-trip tickets is $1,173 and $898 respectively.

Good to know

Low seasonAugust
Cheapest flight$398
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 20% lower on average.
Flight from Missoula to San José

FAQs - booking Costa Rica flights

  • How does KAYAK find such low prices on flights from Missoula to Costa Rica?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missoula to Costa Rica.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missoula to Costa Rica?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Missoula to Costa Rica is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Missoula to Costa Rica?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Missoula to Costa Rica with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missoula to Costa Rica?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Missoula to Costa Rica up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Costa Rica?

    The cheapest time of day to fly to Costa Rica is generally in the evening, when round-trip flights cost $600 on average. Morning departures are around 30% more expensive than evening flights, on average. The most expensive time of day to fly to Costa Rica is generally in the morning, which is peak travel time and where the average cost of a ticket is $782.

Reviews of the top 3 airlines serving from Missoula to Costa Rica

 
Need help choosing which airline to fly with from Missoula to Costa Rica? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11517 reviews
8.1Boarding
7.0Entertainment
7.1Food
8.5Crew
7.8Comfort
Airline reviews

I wasn’t able to check in prior to arriving at the airport, I was told by the agent I may not get a seat on the plane as others were waiting for seats, I sat there for 2 hours before being assigned a seat, very stressful. The plane was delayed. Overall not a great travel experience for a 44 minute flight.

2.0 MediocreAnonymous, Dec 2025
SJC - LAX
Read more Alaska Airlines reviews

I wasn’t able to check in prior to arriving at the airport, I was told by the agent I may not get a seat on the plane as others were waiting for seats, I sat there for 2 hours before being assigned a seat, very stressful. The plane was delayed. Overall not a great travel experience for a 44 minute flight.

The seats were not very comfortable and there were no TV screens. Boarding was pretty fast because there were so few people on such a small plane and I appreciated that they still gave us our snack and drinks, however I really wish they would come up with a good gluten-free snack.

Didn’t realize we couldn’t actually get the full food menu while on-board. I saw that pre-ordering was available but didn’t realize the impact. Also didn’t know there weren’t entertainment devices on board had to bring your own device which I would’ve preferred to have clarity about ahead of time.

Boarding passes could not be received online, even after online check-in. While they appeared on the Alaska.com app, they did not transfer to inbox or messages and were not available at all on the Alaska.com app following the check-in process. There was no choice other than to get boarding passes at the airport counter.

Comfort level was below par. Food selection was non-existent. Paying $35 for 1st bag is never appreciated. I will not fly them again. I am actually trying to change my return flight.

Flight was on time. Crew was helping & seat were comfortable.

Great airline attendants. However I could not get the entertainment to work on the app

Was late but $50 voucher was great benefit of the summit card.

Every thing is on time, boarding, landing nice and smooth. But No tv? No food for 6 hours flight?

I always choose Alaska when I can. Every thing seems to run more efficiently with them.

They did the one thing that really matters - got to Chicago early.

I liked the snacks and the flight attendants were friendly.

Gate agent at Frankfurt was terrible. She denied PRE boarding even as it was printed on the boarding pass. Refused to look at the boarding pass and literally shouting for no reason. Frankfurt airport has horrible and rude staff who avoids trying to answer any question at all. Overall, horrible experience.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Very turbulent trip made it pretty bearable, plus the lack of refreshments served and the lack of any air conditioning before takeoff which took an hour or more.

Flight was late - I was downgraded from first class to coach

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Great flight - friendly and attentive team! Seats in coach were comfy, but a little cramped - but that is the case with all airlines ;)

The boarding by groups is pointless. The first two groups worked fine, but almost Noone boarded in goups three thru five leaving the vast majority boarding when group six was called. It defeated the purpose of spreading out the crowd.

I don’t know who decides what food to serve on these flights but I would be so embarrassed if I served this to anyone and call it food…

For whatever reason, the flight was not catered -we were told it would be a 45 minute delay waiting for catering - so no food. There were opened candy and peanuts in the seatback pocket. Flight landed early in DFW but due to the assigned gate not being available, we sat on the ground for 30 minutes waiting for the gate to open - making the flight actually arrive at the gate late.

Not great. Booked Extra seats and got nothing extra at all. It’s basically a big budget airline.

The pilot greased the landing and the crew was fantastic.

I bought wifi and most of the flight could not even use it my apps would just spin. I couldn't even listen to music. super frustrating.

delayed due to weather. Could not communicate with family since the wifi was broken

Experience was good, however I had a delay due to weather happening and had to re purchase a seat on a new plane for a higher price (could be my own issue and misunderstanding) but other than that situation. First time flyer (by myself) was terrific!! The last from ORD to ALO didn't have wifi, but it was only 45 minutes so I'm sure that was part of the reason. Overall my experience was great! Next time I will remember to buy tickets with longer layovers. The delays really saved my overall anxiety. :)

Flight was delayed 17 hours due to aircraft issues. American did provide hotel, transportation and meals, 3 hours past boarding time, but it took us another hour to get the vouchers.

Everything you need to know for your flight from Missoula to Costa Rica

Information on your arrival and departure airports