HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Costa Rica

$133+ Cheap flights from Idaho to Costa Rica

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJO
Oct 13 — Oct 201
Mon 10/13
Mon 10/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to Costa Rica with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Idaho to Costa Rica

Keep the following information in mind while searching for Idaho to Costa Rica flight deals. Data was last updated September 13, 2025.

Round-trip from

$298
(United Airlines)

One-way from

$133
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$572
From Idaho to Costa Rica
Search Deals
One-way flight from Idaho to Costa Rica
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Idaho to Costa Rica

Cheapest flights from Idaho to Costa Rica
Explore the most affordable flight options available from Idaho to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2025.

This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:00 pmGEG - SJO
2 stops19h 15mUnited Airlines
Fri 10/318:40 amSJO - GEG
1 stop15h 49mUnited Airlines
Deal found 9/12$298
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/112:31 pmBOI - SJO
2 stops19h 54mUnited Airlines
Tue 11/189:40 amSJO - BOI
1 stop10h 14mUnited Airlines
Deal found 9/11$298
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:54 amBOI - SJO
2 stops17h 44mAlaska Airlines
Mon 11/171:55 amSJO - BOI
2 stops21h 25mAlaska Airlines
Deal found 9/11$302
This SmartFares deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/37:39 pmGEG - SJO
2 stops26h 59mAlaska Airlines
Tue 11/111:55 amSJO - GEG
2 stops21h 19mAlaska Airlines
Deal found 9/11$312
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/31:47 pmGEG - SJO
2 stops19h 38mUnited Airlines
Wed 11/129:40 amSJO - GEG
1 stop15h 49mUnited Airlines
Deal found 9/11$313
This Alaska Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:28 amBOI - SJO
2 stops17h 10mAlaska Airlines
Sun 11/161:55 amSJO - BOI
2 stops40h 16mAlaska Airlines
Deal found 9/12$314
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/274:00 pmBOI - SJO
2 stops19h 58mDelta
Mon 11/32:15 pmSJO - BOI
2 stops21h 02mDelta
Deal found 9/12$320
This Alaska Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:00 amGEG - SJO
1 stop11h 00mAlaska Airlines
Thu 10/301:11 amSJO - GEG
1 stop13h 47mAlaska Airlines
Deal found 9/12$328
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2612:33 pmGEG - SJO
2 stops22h 32mAmerican Airlines
Sun 11/22:39 pmSJO - GEG
1 stop28h 03mAmerican Airlines
Deal found 9/11$329
This Alaska Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/278:41 amBOI - SJO
2 stops15h 10mAlaska Airlines
Sun 11/21:55 amSJO - BOI
2 stops23h 04mAlaska Airlines
Deal found 9/12$332
This Alaska Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:38 pmGEG - SJO
1 stop32h 00mAlaska Airlines
Mon 12/151:30 amSJO - GEG
2 stops19h 15mAlaska Airlines
Deal found 9/12$339
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/113:00 pmBOI - SJO
2 stops21h 06mDelta
Tue 11/187:00 amSJO - BOI
2 stops18h 07mDelta
Deal found 9/11$341

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Costa Rica that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 13, 2025.
Use the filters below to find and compare flights from Idaho to Costa Rica that are best for you.

Fly from

Idaho

Fly to

Costa Rica

Route

Depart

Return

Price

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Sat 10/25

4:00 pm-12:15 pm

2 stops19h 15m

San José Juan Santamaria Intl

Fri 10/31

8:40 am-11:29 pm

1 stop15h 49m

$298

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 11/11

6:28 am-12:38 am

2 stops17h 10m

San José Juan Santamaria Intl

Mon 11/17

1:55 am-1:40 pm

1 stop12h 45m

$302

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 1/12

7:05 pm-8:32 am

1 stop12h 27m

San José Juan Santamaria Intl

Wed 1/21

8:45 am-11:48 pm

2 stops16h 03m

$317

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Sat 10/25

7:00 am-7:00 pm

1 stop11h 00m

San José Juan Santamaria Intl

Thu 10/30

1:11 am-1:58 pm

1 stop13h 47m

$328

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Wed 11/5

2:38 pm-12:38 am

1 stop32h 00m

San José Juan Santamaria Intl

Mon 12/15

1:30 am-6:45 pm

2 stops19h 15m

$339

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 11/11

11:13 am-1:06 pm

2 stops24h 53m

San José Juan Santamaria Intl

Tue 11/18

7:00 am-8:25 pm

2 stops14h 25m

$341

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 11/13

11:35 pm-1:06 pm

1 stop12h 31m

San José Juan Santamaria Intl

Mon 11/17

7:00 am-12:09 am

2 stops18h 09m

$341

JacksonSan José

JAC - SJO

JACSJO

Jackson Hole

Tue 2/24

1:10 pm-12:55 pm

2 stops22h 45m

San José Juan Santamaria Intl

Mon 3/2

2:20 pm-2:07 pm

2 stops24h 47m

$362

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 1/28

8:00 am-11:00 pm

2 stops14h 00m

San José Juan Santamaria Intl

Sat 2/7

2:26 am-11:50 pm

2 stops22h 24m

$378

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 1/31

6:00 am-11:00 pm

2 stops16h 00m

San José Juan Santamaria Intl

Wed 2/4

2:26 am-12:04 pm

1 stop10h 38m

$381

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Idaho to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Idaho with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Costa Rica

What is the cheapest month to book a flight from Idaho to Costa Rica?

Currently, September is the cheapest month in which you can book a flight from Idaho to Costa Rica (average of $398). Flying from Idaho to Costa Rica in March is currently the most expensive (average of $555). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ID to CR?

Find hourly flight availability from Idaho to Costa Rica. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 13, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Costa Rica as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Idaho to Costa Rica?

    Departing from Idaho to Costa Rica will take you 17h 10m. There are 3008 mi between Idaho and Costa Rica. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Idaho to Costa Rica one-way?

    The cheapest airlines for a one-way flight from Idaho to Costa Rica are United Airlines ($133), American Airlines ($133), and Delta ($142).

  • Can I find deals for flights from Idaho to Costa Rica that include hotel bookings?

    Yes. In addition to deals on Idaho to Costa Rica flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Costa Rica?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Costa Rica.

  • Can I find deals for business class flights from Idaho to Costa Rica?

    Yes. Cheapflights offers flight deals from Idaho to Costa Rica by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho to Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from Idaho to Costa Rica (average of $398). Flying from Idaho to Costa Rica in March is currently the most expensive (average of $555). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to San José flights
John F Kennedy Intl to Panama City flights
Los Angeles to San Salvador flights
Los Angeles to Guatemala City flights
Newark to San José flights
Dulles Intl to San Salvador flights
Newark to Panama City flights
Dallas/Fort Worth to San Salvador flights
John F Kennedy Intl to San Salvador flights
Hobby to San Salvador flights
Los Angeles to San José flights
John F Kennedy Intl to Guatemala City flights
Newark to Guatemala City flights
Dulles Intl to Panama City flights
George Bush Intcntl to San Salvador flights
O'Hare Intl to San José flights
LaGuardia to San José flights
Newark to Liberia flights
Miami to Panama City flights
Dulles Intl to San José flights
LaGuardia to Panama City flights
Los Angeles to Panama City flights
Hobby to San José flights
Dallas/Fort Worth to San José flights
Atlanta to San José flights
O'Hare Intl to Panama City flights
San Francisco to San José flights
John F Kennedy Intl to Liberia flights
Dulles Intl to Guatemala City flights
Miami to San José flights
George Bush Intcntl to San José flights
Baltimore to San Salvador flights
Miami to Managua flights
Reagan-National to San Salvador flights
San Francisco to Panama City flights
Boston to San José flights
Miami to San Salvador flights
O'Hare Intl to Liberia flights
Dallas/Fort Worth to Panama City flights
Denver to San José flights
Baltimore to San José flights
Atlanta to Panama City flights
O'Hare Intl to Guatemala City flights
LaGuardia to Guatemala City flights
Reagan-National to San José flights
Los Angeles to Liberia flights
Atlanta to San Salvador flights
LaGuardia to Liberia flights
Los Angeles to Philip S.W.Goldson flights
LaGuardia to San Salvador flights

Top 5 airlines flying from Idaho to Costa Rica

Discover the top 5 airlines that operate flights from Idaho to Costa Rica. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$141Average$1,005FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$404Average$802FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$429Average$690FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$439Average$742FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$559Average$723FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.