$434 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 3/4. 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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Flight Deals

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

Wed, Mar 4 - Wed, Mar 11
American Airlines Logo
2:18 pm - 12:46 pm
IDA
-
SJO
21h 28m
2 stops
American Airlines Logo
11:35 pm - 1:48 pm
SJO
-
IDA
14h 13m
1 stop
$434American Airlines
Wed, Mar 4 - Wed, Mar 11
American Airlines Logo
2:18 pm - 10:24 am
IDA
-
SJO
19h 06m
2 stops
American Airlines Logo
2:59 pm - 1:48 pm
SJO
-
IDA
22h 49m
2 stops
$454American Airlines
Mon, Mar 9 - Sat, Mar 14
United Airlines Logo
5:30 pm - 11:56 am
IDA
-
SJO
18h 26m
2 stops
United Airlines Logo
5:40 am - 9:06 pm
SJO
-
IDA
15h 26m
2 stops
$556United Airlines
Wed, Mar 4 - Wed, Mar 11
American Airlines Logo
2:18 pm - 2:53 pm
IDA
-
SJO
23h 35m
1 stop
American Airlines Logo
11:35 pm - 1:48 pm
SJO
-
IDA
14h 13m
1 stop
$562American Airlines
Wed, Mar 4 - Wed, Mar 11
American Airlines Logo
2:18 pm - 2:53 pm
IDA
-
SJO
23h 35m
1 stop
American Airlines Logo
11:35 pm - 1:48 pm
SJO
-
IDA
14h 13m
1 stop
$582American Airlines
Mon, Mar 30 - Fri, Apr 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
$585American Airlines
Mon, Mar 30 - Fri, Apr 3
American Airlines Logo
2:18 pm - 11:26 am
IDA
-
SJO
21h 08m
2 stops
American Airlines Logo
2:59 pm - 1:48 pm
SJO
-
IDA
22h 49m
2 stops
$594American Airlines
Mon, Mar 9 - Sat, Mar 14
United Airlines Logo
5:30 pm - 11:56 am
IDA
-
SJO
18h 26m
2 stops
United Airlines Logo
6:30 am - 3:40 pm
SJO
-
IDA
9h 10m
1 stop
$619United Airlines
Mon, Mar 30 - Fri, Apr 3
United Airlines Logo
2:30 pm - 12:21 pm
IDA
-
SJO
21h 51m
2 stops
United Airlines Logo
11:13 am - 9:53 am
SJO
-
IDA
22h 40m
2 stops
$644United Airlines
Mon, Mar 2 - Wed, Mar 4
United Airlines Logo
5:33 pm - 1:15 pm
IDA
-
SJO
18h 42m
2 stops
United Airlines Logo
2:20 pm - 1:30 pm
SJO
-
IDA
24h 10m
2 stops
$663United 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 ($434) and United Airlines ($555).

Good to know

Cheapest flight$434
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 9308 reviews
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
8.1Crew
Airline reviews

Once boarding started it was pretty quick. Food was inedible; cold and salty..

8.0 ExcellentAnonymous, Feb 2026
EWR - EDI
Read more United Airlines reviews

Once boarding started it was pretty quick. Food was inedible; cold and salty..

Entertainment kept turning itself off. Gave up on watching a movie.

Both the WIFI and entertainment did not work for 2.5h

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

No Snacks or Entertainment. The flight was short, snacks should still be given.

We lost a day of our vacation because AA did not get the plane to the gate on time. Even though the gate attendant was very clear that it was not weather related, AA would do nothing because there was some snow that day. They basically said the gate attendant was wrong even though she was on the front line of the situation and they were not.

See prior comment about how Kayak mishandled my reservation and delayed my arrival by 6 hours.

American Airlines was great and worked very hard to change my ticket so I could get an earlier, direct flight back to Dallas. However, I was informed that Kayak made mistakes with my itinerary and classified my ticket as desiring to be on the earlier flight instead of taking the necessary step of calling AA to get me on the standby list. This ended up keeping me from being added to the standby list and delayed me getting home by 6 hours. I am happy to discuss this further with Kayak so they can correct their procedures so this won't happen again.

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

Overall it was a good flight. Because we traveled on a Saturday we were upgraded to FC since my wife and I are both Executive Platinum. The only areas for improvement we noted are better snack assortment and perhaps a little nicer plane as American is flying some older planes now. Everything else on this flight was excellent, which is frankly not the norm for American since we have had multiple issues on prior AA flights.

The smell from the bathroom kept wafting through the cabin. It made people sick.

The flight was really crowded. Flight attendants were just ok.

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

Didn't get a seat assignment until the last minute even though i picked a seat.

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

Information on your arrival and departure airports