$159 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 5/24. 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 José2 stops$386
Liberia
Liberia2 stops$633
San José
San José2 stops$386
Liberia
Liberia2 stops$633

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

Sun, May 24 - Fri, May 29
United Airlines Logo
5:20 pm - 10:11 am
MSO
-
SJO
16h 51m
2 stops
United Airlines Logo
12:30 am - 1:24 pm
SJO
-
MSO
12h 54m
2 stops
$386United Airlines
Sun, May 24 - Fri, May 29
United Airlines Logo
4:19 pm - 7:15 am
MSO
-
SJO
14h 56m
1 stop
United Airlines Logo
12:30 am - 1:24 pm
SJO
-
MSO
12h 54m
2 stops
$407United Airlines
Sun, May 24 - Sat, May 30
Multiple Airlines Logo
7:15 am - 11:15 pm
MSO
-
SJO
16h 00m
2 stops
Multiple Airlines Logo
5:05 am - 10:38 pm
SJO
-
MSO
17h 33m
2 stops
$463Multiple Airlines
Sun, May 24 - Sat, May 30
United Airlines Logo
4:19 pm - 7:15 am
MSO
-
SJO
14h 56m
1 stop
United Airlines Logo
6:40 am - 9:34 pm
SJO
-
MSO
14h 54m
1 stop
$474United Airlines
Sun, May 24 - Sat, May 30
United Airlines Logo
2:26 pm - 10:11 am
MSO
-
SJO
19h 45m
2 stops
United Airlines Logo
6:00 am - 9:34 pm
SJO
-
MSO
15h 34m
2 stops
$475United Airlines
Thu, Jun 18 - Tue, Jun 23
United Airlines Logo
4:19 pm - 7:15 am
MSO
-
SJO
14h 56m
1 stop
United Airlines Logo
12:30 am - 3:38 pm
SJO
-
MSO
15h 08m
2 stops
$481United Airlines
Mon, May 4 - Thu, May 7
United Airlines Logo
6:15 am - 12:21 pm
MSO
-
SJO
30h 06m
2 stops
United Airlines Logo
1:25 pm - 1:35 pm
SJO
-
MSO
48h 10m
2 stops
$491United Airlines
Fri, Jun 5 - Thu, Jun 11
United Airlines Logo
5:20 pm - 10:11 am
MSO
-
SJO
16h 51m
2 stops
United Airlines Logo
12:30 am - 10:36 pm
SJO
-
MSO
22h 06m
2 stops
$504United Airlines
Fri, Jun 5 - Thu, Jun 11
United Airlines Logo
7:15 am - 5:30 am
MSO
-
SJO
22h 15m
1 stop
United Airlines Logo
12:30 am - 10:36 pm
SJO
-
MSO
22h 06m
2 stops
$512United Airlines
Sat, Jun 6 - Fri, Jun 12
Alaska Airlines Logo
7:45 am - 11:33 pm
MSO
-
SJO
15h 48m
2 stops
Alaska Airlines Logo
1:03 am - 11:59 pm
SJO
-
MSO
46h 56m
2 stops
$521Alaska 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 August, when the average cost of round-trip tickets is $1,173 and $838 respectively.

Good to know

Low seasonAugust
Cheapest flight$386
Best time to beat the crowds but there is an average 27% 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.

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 11937 reviews
8.5Crew
7.0Entertainment
7.1Food
8.1Boarding
7.8Comfort
Airline reviews

Everything was good. Please have a wheat free option for snacks in the future.

8.0 ExcellentERIN, Feb 2026
SEA - ANC
Read more Alaska Airlines reviews

Everything was good. Please have a wheat free option for snacks in the future.

The flight was good, comfort in the seat was good, drinks were good, entertainment had a large selection to choose from. I really liked the multi function of the tray tables, I hadn't seen that before. My only downside was that I wasn't able to have your snacks. Please have a wheat free option for a snack.

Everything ran like it should. Staff was professional. Looking forward to flying with them again.

The flight was a disaster. It is a 40 min flight and we waited to the tarmac for well over 90 min with no updates, while the crew tried to reconcile the seating chart of people on the plane to what their phones showed. Terrible communication, systems and experience. I would do almost anything to avoid taking another Alaska flight after the experience last night.

They are always so great! Friendly, on time if not early, organized boarding process. Great price too.

Boarding much smoother than previous United flights! The flight attendant helped monitor putting bags in overhead bins. On united no help resulted in bins in first class being filled before I boarded for first class. I had to search further down into economy. Then got stuck unable to return to my seat. People were putting backpacks that needed to go under seats in bins. It was a mess. This flight was a refreshing improvement. United also had so many categories of preboarding that first class could not board early. The pilot talked to us directly instead of using the intercom before flight.

The plane was dirty, the seats were tiny, wasnt my favorite airline tbh

I had a medical incident on the flight. The crew was very responsive and kind, making the situation as "good" as possible. (I believe they were overly cautious, but it's understandable.) My only complaint is that the seats are too small. I was so cramped for so many hours, that it exacerbated my medical incident. I will probably not be able to fly in coach anymore, and cannot afford otherwise, so it looks like flying is a thing of the past for me.

The boarding process could be clearer, there's never a call for group f

I bought tickets MONTHS ago for a flight that left SAN at 14:30. That is what it says on our tickets. I was never notified of any time changes. During online check-in. I discovered the flight time had been changed to 15:45. This was unacceptable and had I been notified, I would have changed flights, or airlines. That departure time was unworkable with our plans. We called Alaska and asked for an explanation. They said flight time was changed 11/08/25. No proof of notification could be offered. We asked to be moved to an earlier flight. After much pleading, the rep said she would allow a “one time exception..” While I appreciate being moved, this was YOUR fault Alaska Airlines.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Flight on time. Excellent service in Premium Economy. Great food served and cleaned up promptly. Unfortunately the climate control was malfunctioning and it was very cold and felt a bit like camping. Cold helps with sleep though so not complaining too much. Slept well. It asks to rate "entertainment". I do not like any IFE, don't shove a big screen in my face—I have my own phone if I want it. So this will always get low ratings.

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

it was a very short flight so my expectations were low.

Flight was delayed. Not much information on when the flight would take off. Eventually we were told it was maintenance. App was not giving updates.

Never ontime and always delays. Long waits for customer service and often app doesn’t work

Arriving plane went to wrong gate. Flight Attendant was late. Was in no Hurry when he arrived. Flight was fine. Plane had to wait 20 minutes to get assigned a gate due to designated gate tied up. barely connected.. Boarded extremely late on final leg of trip.

We arrived 25 minutes early only to be told our gate was occupied and so we sat for close to 30 minutes to pull into a gate. That’s not an early arrival!

Experience was great. The best part is the free Wi-Fi connection which helps me to work on the flight

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

The TSA check in took 1.5 hours to get through in Austin and I missed my flights back to DC

As previously stated the delay I experienced flying from Wichita to Chicago caused a host of issues. When I finally was able to be booked on the last remaining American flight from Chicago to Cincinnati, the gate changed four times with the last change occurring very near the scheduled boarding time. While I didn't have a problem moving from gate to gate, I did notice and make note of others that had mobility issues and had to move each time for the gate change.

Overall, my last three trips on American Airlines have all been either delayed or "rescheduled" due to mechanical issues. At least on delay caused me to miss two possible connecting flights each later than the first. My last option for my last connection required the assistance of the onsite service desk (O'Hare Airport). The wait time for the service desk was such that it jeopardized getting booked on the last connecting flight available for the night. Suffice it to say, my latest experiences with American Airlines have caused me extensive loss of productive business and personal time and can therefore be classified as significantly less than satisfactory.

There was free WiFi (definitely a plus), but the flight was delayed 45 minutes waiting on a catering truck that never arrived. The pilot said there would be food vouchers given out at the end of the gangway to make up for the inconvenience, but there was no one offering those. Delay made me late for work!

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

Information on your arrival and departure airports