$624 Find Cheap Flights from Idaho Falls 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 Idaho Falls to Costa Rica departing on 1/28. 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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Book Cheap Idaho Falls 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 Idaho Falls 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 Idaho Falls to Costa Rica

จ., มี.ค. 30 - ศ., เม.ย. 3
American Airlines Logo
2:18 pm - 9:25 am
IDA
-
SJO
19h 07m
2 stops
American Airlines Logo
2:59 pm - 1:48 pm
SJO
-
IDA
22h 49m
2 stops
$624American Airlines
จ., มี.ค. 2 - พ., มี.ค. 4
United Airlines Logo
5:33 pm - 1:15 pm
IDA
-
SJO
18h 42m
2 stops
United Airlines Logo
2:20 pm - 9:56 am
SJO
-
IDA
20h 36m
2 stops
$630United Airlines
จ., มี.ค. 30 - ศ., เม.ย. 3
American Airlines Logo
2:18 pm - 1:55 pm
IDA
-
SJO
23h 37m
1 stop
American Airlines Logo
2:59 pm - 1:48 pm
SJO
-
IDA
22h 49m
2 stops
$633American Airlines
จ., มี.ค. 30 - ศ., เม.ย. 3
American Airlines Logo
2:18 pm - 1:55 pm
IDA
-
SJO
23h 37m
1 stop
American Airlines Logo
2:59 pm - 1:48 pm
SJO
-
IDA
22h 49m
2 stops
$663American Airlines
จ., มี.ค. 30 - ศ., เม.ย. 3
American Airlines Logo
2:18 pm - 1:55 pm
IDA
-
SJO
23h 37m
1 stop
American Airlines Logo
2:20 pm - 1:48 pm
SJO
-
IDA
23h 28m
1 stop
$726American Airlines
พฤ., ก.พ. 12 - พฤ., ก.พ. 19
United Airlines Logo
5:33 pm - 10:00 pm
IDA
-
SJO
27h 27m
1 stop
United Airlines Logo
2:20 pm - 9:48 am
SJO
-
IDA
20h 28m
2 stops
$797United Airlines
พฤ., ก.พ. 12 - พฤ., ก.พ. 19
Azul Logo
5:33 pm - 1:15 pm
IDA
-
SJO
18h 42m
2 stops
Azul Logo
2:20 pm - 9:48 am
SJO
-
IDA
20h 28m
2 stops
$826Azul
จ., มี.ค. 30 - ศ., เม.ย. 3
American Airlines Logo
2:18 pm - 1:55 pm
IDA
-
SJO
23h 37m
1 stop
American Airlines Logo
11:35 pm - 1:48 pm
SJO
-
IDA
14h 13m
1 stop
$838American Airlines
พฤ., ก.พ. 12 - พฤ., ก.พ. 19
Multiple Airlines Logo
8:00 am - 12:07 am
IDA
-
SJO
39h 07m
2 stops
Multiple Airlines Logo
6:00 am - 11:36 pm
SJO
-
IDA
18h 36m
3 stops
$1,425Multiple Airlines
พฤ., ก.พ. 12 - พ., ก.พ. 18
American Airlines Logo
2:18 pm - 2:53 pm
IDA
-
SJO
23h 35m
1 stop
American Airlines Logo
12:35 am - 1:48 pm
SJO
-
IDA
14h 13m
1 stop
$1,658American Airlines
Booking Insights

KAYAK's insights & trends for Idaho Falls to Costa Rica flights

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

Which airlines provide the cheapest flights from Idaho Falls to Costa Rica?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Idaho Falls to Costa Rica were found on American Airlines ($624) and United Airlines ($630).

Good to know

Cheapest flight$624
Flight from Idaho Falls to San José

FAQs - booking Costa Rica flights

  • How does KAYAK find such low prices on flights from Idaho Falls 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 Idaho Falls to Costa Rica.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Idaho Falls 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 Idaho Falls 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 Idaho Falls 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 Idaho Falls 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 Idaho Falls 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 Idaho Falls to Costa Rica

 
Need help choosing which airline to fly with from Idaho Falls 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 9205 reviews
6.6Food
8.1Crew
7.1Entertainment
7.7Boarding
7.3Comfort
Airline reviews

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.

2.0 MediocreSonje’, Jan 2026
STL - EWR
Read more United Airlines reviews

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.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

The flight crew where really good. Better then the crew from BNE to SFO

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

My flight to London from Philadelphia was cancelled due to weather.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

one crew said "he" didn't serve double alcohol drinks for travelers in exit rows. crew on prior flight did. Is this a AA rule, and the prior crew was being nice? Also, I think we deserve more than a 25% refund for losing first class seats when rescheduling a flight due to weather

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

2 hour delay due to equipment failure. No updates via the app and airport screens (which continued to show a departure time in the past). AA eventually switched planes and the new plane was not catered or cleaned correctly.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

The aircraft had several problems - from excess fuel to non operational ac. Two hours of delay in Chicago could have been avoided with proper planning and aircraft maintenance.

Everything you need to know for your flight from Idaho Falls to Costa Rica

Information on your arrival and departure airports