$164 Find Cheap Flights from Missoula to Costa Rica

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Missoula to Costa Rica departing on 3/7. 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$345
Liberia
Liberia2 stops$633
San José
San José2 stops$345
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

Mon, Apr 20 - Tue, Apr 28
United Airlines Logo
5:15 pm - 10:11 am
MSO
-
SJO
16h 56m
2 stops
United Airlines Logo
1:25 pm - 1:36 pm
SJO
-
MSO
24h 11m
2 stops
$345United Airlines
Tue, Apr 21 - Wed, Apr 29
Alaska Airlines Logo
7:00 am - 11:53 pm
MSO
-
SJO
16h 53m
2 stops
Alaska Airlines Logo
12:55 am - 2:59 pm
SJO
-
MSO
38h 04m
2 stops
$417Alaska Airlines
Mon, Apr 20 - Wed, Apr 29
Alaska Airlines Logo
7:00 am - 11:53 pm
MSO
-
SJO
40h 53m
2 stops
Alaska Airlines Logo
12:55 am - 2:59 pm
SJO
-
MSO
38h 04m
2 stops
$422Alaska Airlines
Sun, May 24 - Sat, May 30
United Airlines Logo
2:27 pm - 10:11 am
MSO
-
SJO
19h 44m
2 stops
United Airlines Logo
6:00 am - 10:30 pm
SJO
-
MSO
16h 30m
1 stop
$445United Airlines
Sun, May 24 - Sat, May 30
United Airlines Logo
5:27 pm - 10:11 am
MSO
-
SJO
16h 44m
2 stops
United Airlines Logo
6:00 am - 10:30 pm
SJO
-
MSO
16h 30m
1 stop
$455United Airlines
Sun, Apr 19 - Wed, Apr 29
Alaska Airlines Logo
7:00 am - 11:53 pm
MSO
-
SJO
40h 53m
2 stops
Alaska Airlines Logo
12:55 am - 2:59 pm
SJO
-
MSO
38h 04m
2 stops
$465Alaska Airlines
Sun, Apr 19 - Wed, Apr 29
United Airlines Logo
6:15 am - 10:11 am
MSO
-
SJO
27h 56m
2 stops
United Airlines Logo
1:25 pm - 9:30 pm
SJO
-
MSO
32h 05m
2 stops
$471United Airlines
Mon, Feb 23 - Fri, Mar 6
United Airlines Logo
5:08 pm - 8:39 pm
MSO
-
SJO
26h 31m
2 stops
United Airlines Logo
2:05 pm - 1:33 pm
SJO
-
MSO
24h 28m
2 stops
$473United Airlines
Sun, May 24 - Sat, May 30
United Airlines Logo
2:27 pm - 10:11 am
MSO
-
SJO
19h 44m
2 stops
United Airlines Logo
6:00 am - 9:26 pm
SJO
-
MSO
15h 26m
2 stops
$484United Airlines
Thu, Apr 23 - Thu, Apr 30
United Airlines Logo
6:15 am - 10:11 am
MSO
-
SJO
27h 56m
2 stops
United Airlines Logo
1:25 pm - 9:30 pm
SJO
-
MSO
32h 05m
2 stops
$501United 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$164
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 11878 reviews
7.1Food
7.0Entertainment
8.5Crew
8.1Boarding
7.8Comfort
Airline reviews

Impressed that Alaska Air(for our domestic flight) transferred our checked bags to EVA (for our international flights) so that we didn't have to handle them, & we just picked them up at our final destination.

8.0 ExcellentAnonymous, Feb 2026
SEA - PHX
Read more Alaska Airlines reviews

Impressed that Alaska Air(for our domestic flight) transferred our checked bags to EVA (for our international flights) so that we didn't have to handle them, & we just picked them up at our final destination.

The flight was on time and got in early which allowed us to get to our next flight.

The plane not having any overhead bin space was inconvenient. Anytime my luggage has to be checked it ends up covered in scratches and that’s not covered by the airlines for replacement/repair. The WiFi did not work or was not offered for the flight from Seattle to Vancouver.

I enjoyed the movie selection. I’m glad I saw ahead of time to bring personal ear buds. I don’t normally have them with me and airlines used to give them out.

Most of it was good. The flights were on time. The staff were helpful and friendly. I had a short time connecting flights and they let me deplane first and I made the connection. On the outbound from DTW to SEA I was seated in the middle of two very large people. I am petite and even with my arms crossed they were both hanging over into my seat touching me. The meal had way too much pepper and spice, my lips were burning. Other than those two issues, I was pleased with the service and the trip and will use Alaska Air again.

Delay for switching planes. Then delay after delay (mechanical) after boarding so that we were almost 3 hrs late, getting in at 230am. Crew was good.

man & woman back side flight attendant was very rude. I live in Seattle. I use a lot of time Alaska flights. I always like them for fact that my favorite airline employees very rude. It’s disappointing. .

The seats were spacious and comfortable. Even in basic economy. However, the flight boarded 30 minutes late.

Kayak wouldn’t refund me for a flight I was trying to cancel through Kayak. Alaska airlines said I had to cancel through Kayak. I called the customer service line and they couldn’t refund the flight that I booked through Kayak either. You stole my money. You will be hearing from my lawyer.

Great experience, staff and crew were very professional, friendly and helpful!

Both of my flights arrived early and check in process was smooth

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

Much better than Spirit. I was please by the easy fast check in and boarding

Check-in and in-flight staff were better than average. The seat was a fair size but too hard and not enough padding. The cushion/pillow provided is poor (thin and seems to be disposable ,it provides no effective cushioning or support). Food was OK-ish but no choice of inflight snacks and no easy place to get drinks other than water (I could ask for juice by intruding into the staff area at the back of the plane) Entertainment was very good actually. Overall better than I expected from a US-based airline (sorry!) but compared to ANA or Singapore it was so-so. (I live in Japan so they are my comparative airlines)

Everything was on time Will use united again for sure

Plane outlets in my row not working to charge phone. Staff response was, well it should be. Plug into seed for volume not working well. Had to find the sweet spot for plug in or it would shut off and on.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Fine not above and beyond as I had a connection that was delayed due to maintenance

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

The flight was on time/early, attentive crew, and everything overall went smoothly. Disappointed that WIFI was not working for the flight.

One day, I do so hope for a gluten free snack! Seems like with the rest of the world FINALLY figuring out what gluten free is, American Airlines would too. Fingers crossed!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

Flight was on time and the meal and service were good.

The accessible bathroom should be visible to people in Economy class.

Flight was delayed for 2 hours, then last minute the change to on time. The satélite location is far and a nightmare to get to.

This was a horrible experience. I’ve experienced several delays at this point and still not home. I was supposed to be home by 8:30 last night and here I sit at 7 am on a plane STILL unable to go home because of American Airlines.

Lexus in first class was absolutely amazing! Beat flight attendant i’ve ever seen.

Generally good. Flight left on time and the seats are comfortable. Plenty of space in front if you in you choose a comfort plus seat, completely worth spending the extra money given the amount of hours the flight lasts. The food tastes good but I would say it’s a the amount is too little. The crew was friendly and efficient. There was a some turbulence at different points into the flight. American Airlines has good deals to NZ if you book with plenty of time before you plan on going.

the plane was so hot!! the air-conditioning was barely blowing. The flight was delayed, and we had to sit on the hot plane before take off for an extended amount of time, waiting on international passengers. Would not have been so bad if it was not so hot. They said it would get better after take off, but it did not.

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

Information on your arrival and departure airports