$505 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$479
Liberia
Liberia2 stops$690
San José
San José2 stops$479
Liberia
Liberia2 stops$690

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 - Sat, May 30
American Airlines Logo
4:44 pm - 1:09 pm
MSO
-
SJO
20h 25m
2 stops
American Airlines Logo
3:08 pm - 1:28 pm
SJO
-
MSO
22h 20m
2 stops
$479American Airlines
Sun, May 24 - Sat, May 30
United Airlines Logo
2:26 pm - 10:39 pm
MSO
-
SJO
32h 13m
2 stops
United Airlines Logo
6:00 am - 10:38 pm
SJO
-
MSO
16h 38m
1 stop
$505United Airlines
Thu, Jun 18 - Sat, Jul 4
Multiple Airlines Logo
5:20 pm - 10:11 am
MSO
-
SJO
16h 51m
2 stops
Multiple Airlines Logo
12:30 am - 9:40 pm
SJO
-
MSO
21h 10m
2 stops
$514Multiple 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
6:00 am - 10:38 pm
SJO
-
MSO
16h 38m
1 stop
$520United Airlines
Wed, Sep 23 - Wed, Sep 30
United Airlines Logo
4:19 pm - 7:15 am
MSO
-
SJO
14h 56m
1 stop
United Airlines Logo
1:30 pm - 1:27 pm
SJO
-
MSO
23h 57m
2 stops
$525United 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
6:00 am - 10:38 pm
SJO
-
MSO
16h 38m
1 stop
$531United Airlines
Sun, May 24 - Sat, May 30
United Airlines Logo
2:26 pm - 10:39 pm
MSO
-
SJO
32h 13m
2 stops
United Airlines Logo
6:00 am - 10:38 pm
SJO
-
MSO
16h 38m
1 stop
$542United Airlines
Fri, Jun 12 - Tue, Jun 16
United Airlines Logo
4:19 pm - 10:39 pm
MSO
-
SJO
30h 20m
2 stops
United Airlines Logo
12:30 am - 10:36 pm
SJO
-
MSO
22h 06m
2 stops
$544United Airlines
Thu, Jun 18 - Sun, Jul 5
American Airlines Logo
2:08 pm - 10:42 pm
MSO
-
SJO
8h 34m
1 stop
American Airlines Logo
11:41 pm - 10:40 pm
SJO
-
MSO
22h 59m
1 stop
$558American 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
6:00 am - 10:38 pm
SJO
-
MSO
16h 38m
1 stop
$560United 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$479
Best time to beat the crowds but there is an average 30% increase in price.
Most popular time to fly with an average 2% increase in price.
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 airlines flying 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.
7.4
United AirlinesOverall score based on 9525 reviews
6.6Food
8.1Crew
7.1Entertainment
7.3Comfort
7.7Boarding
Airline reviews

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

8.0 ExcellentAnonymous, Mar 2026
ORD - EWR
Read more United Airlines reviews

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

The business class seat is exceptional. I wish the food is more palatable.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

the entire flight felt off. The crew seemed uninterested and disengaged. The food service was really bad - overcooked, bland, weird food service. They actually woke us up to serve chicken wraps in the middle of the night, after dinner and before breakfast. Made no sense. Ultimately, I was glad they did though, because the breakfast had been held for so long it was inedible. Eggs, potatoes, sausage - all disgusting. We were asked to "honor" the lavatories for premium customers and stay in our own cabin: this was also strange. So people in economy didn't pay enough to use the closest toilet to them??? It's a toilet. All in all, not the experience I have come to expect from United Airlines. The return flight from Paris to SFO was better, btw.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

Overall, the flight was good. Lounge access should be with all business class tickets.

They promise free wi-fi prior to boarding and then once on board you are informed you have to purchase wifi even after being a mileagePlus member.

Better snacks but flight and crew were amazing on this flight

Found that the plane used for this short flight is smaller and therefore the seats are really squeezed tight.

It was the most un-special flight experience in my life.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

Flight was on-time, boarding was flawless and the crew was friendly.

The staff are very, very professional. It's what flying should feel like.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

For an international flight the seats were smaller than most flight I have been on in economy. I don’t know the size of the seats or perhaps it was the size of the seat dividers that made the seats feel smaller and little amount of space to even turn your body if you needed to

The flight itself was excellent but the gate attendant made me check my carryon since she said it was an inch too big. I’ve had no problems with this carryon on recent flights on Qantas, Delta, Austrian, Southwest Airlines even though the overhead bins are the same size. there were other carryons in the bins that also looked larger than mine and there was room left in the bins for more. When I picked up my carryon from baggage claim one of the wheels had broken off.

The flight changed gates multiple times and flight had to be delayed multiple times

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

Information on your arrival and departure airports