$335 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 4/18. 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$335
Liberia
Liberia2 stops$493
San José
San José2 stops$335
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

Sat, Apr 18 - Sat, Apr 25
United Airlines Logo
2:38 pm - 10:11 am
MSO
-
SJO
19h 33m
2 stops
United Airlines Logo
6:00 am - 9:35 pm
SJO
-
MSO
15h 35m
2 stops
$335United Airlines
Sun, May 24 - Sat, May 30
American Airlines Logo
4:40 pm - 11:59 am
MSO
-
SJO
19h 19m
2 stops
American Airlines Logo
3:12 pm - 12:35 pm
SJO
-
MSO
21h 23m
2 stops
$435American 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
$445United 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
$463United Airlines
Wed, Feb 18 - Fri, Feb 27
United Airlines Logo
5:08 pm - 12:56 pm
MSO
-
SJO
42h 48m
2 stops
United Airlines Logo
12:35 pm - 1:32 pm
SJO
-
MSO
25h 57m
2 stops
$478United Airlines
Sat, Apr 18 - Sat, Apr 25
United Airlines Logo
5:15 pm - 10:11 am
MSO
-
SJO
16h 56m
2 stops
United Airlines Logo
6:40 am - 9:35 pm
SJO
-
MSO
14h 55m
1 stop
$480United Airlines
Fri, Mar 6 - Fri, Mar 13
United Airlines Logo
2:35 pm - 6:25 am
MSO
-
SJO
14h 50m
2 stops
United Airlines Logo
8:40 am - 12:47 pm
SJO
-
MSO
28h 07m
1 stop
$484United Airlines
Fri, Apr 17 - Tue, Apr 21
United Airlines Logo
2:38 pm - 10:11 am
MSO
-
SJO
19h 33m
2 stops
United Airlines Logo
7:55 am - 9:35 pm
SJO
-
MSO
13h 40m
2 stops
$485United Airlines
Wed, Feb 18 - Fri, Feb 27
United Airlines Logo
5:08 pm - 12:56 pm
MSO
-
SJO
42h 48m
2 stops
United Airlines Logo
12:35 pm - 9:57 pm
SJO
-
MSO
34h 22m
2 stops
$495United Airlines
Tue, Feb 24 - Thu, Feb 26
United Airlines Logo
6:15 am - 8:39 pm
MSO
-
SJO
13h 24m
2 stops
United Airlines Logo
8:45 am - 1:32 pm
SJO
-
MSO
29h 47m
2 stops
$506United 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$335
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 11847 reviews
7.8Comfort
7.1Food
8.5Crew
7.0Entertainment
8.1Boarding
Airline reviews

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

8.0 ExcellentJulie, Feb 2026
PDX - DCA
Read more Alaska Airlines reviews

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!

I fell asleep and missed my flight and they rescheduled me no problem. Staff was professional and the plane was clean. I was very happy with my experience.

The room for legs is adequate for a 6’ tall man and the flight was comfortable. The cabin is clean and the crew is very friendly and pleasant.

The he whole flight was very smooth on every aspects.

Flight cancelled and deplaned. Rescheduled 8 hours later at a different airport. Ended up at destination but late.

Alaska used to be a top notch airline. With it's growth it is now in line with the big airlines. Not bad, not great.

I think Alaska should start including free meals on these longer trips.

Wheelchair assistance was excellent. I had a saver fare, but was given a seat in Premium. So very nice!! Extra legroom, complimentary beer. The flight crew was very nice and efficient. The gate agent in Seattle double checked to make sure I was able to board the plane all right while using my cane. I boarded first. So considerate! The flight was smooth, and right on time.

Everything except the food and entertainment. It was a great experience though

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

The attendant on board was amazing. She should be doing business/first international long haul.

Although our flight was delayed the overall boarding process was very smooth and the crew was accommodating.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

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.

They are always late and seats was also not having working charger

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

did not have enough meal for first class passengers so offer us snack

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

Broke my luggage and I can't get a resolution yet.

My flight got rerouted due to crew rest. I was sent to Dallas customer service was not very polite. Was given a $40 room voucher for Motel 6 and $12 to eat with. It delayed me by a day. Where if I would have just stuck with my original flight Arizona was delayed to Cleveland and I could have made it home. They put me on a 9:00 flight out of Dallas to Cleveland without my knowledge or consent. When originally I was told it would be 8:45 a.m. on February 1st. I told them I could not take the 9:00 flight because I did not have anybody to pick me up from the airport at that time. I'm extremely disappointed in how I was treated. And I will not fly American Airlines again.

I am very appreciative of the help provided to me by Dennis and Whitney. I had lost my phone at EWR airport and they were very kind in assisting me. This included advice on how to file a report and also helping me connect with family. The pilot was also great about keeping passengers updated on the flight progress with regular communications over the system.

Awful. Original flight was delayed 5 hours. Had to to take a connecting flight instead of direct. Had a 4 hour layover. I missed all of my morning meetings getting in 5 hours later than I was supposed to and had to change to take a later flight the next day to get them back in which cia time another $150.

Old equipment, needs upgrade and seat comfort. Internet didn't work 75% or the time.

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

Information on your arrival and departure airports