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Costa Rica

$213+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJO
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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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 April 24, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$316
(American Airlines)

One-way from

$213
(Delta)

Popular in

March

Cheapest in

September

Average price

$609
Provider with most accurate pricing for Boise Air Term. Gowen Fld-San José Juan Santamaria Intl flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-San José Juan Santamaria Intl flights.
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From Idaho to Costa Rica
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One-way flight from Idaho to Costa Rica
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Highest demand for flights based on searches. 5% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 24, 2025.

This American Airlines deal was found by Cheapflights users on 4/22. 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.
Thu 8/146:10 amGEG - SJO
1 stop10h 35mAmerican Airlines
Thu 8/217:40 amSJO - GEG
1 stop13h 47mAmerican Airlines
Deal found 4/22$316
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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 5/285:39 pmBOI - SJO
2 stops30h 07mAlaska Airlines
Tue 6/31:06 amSJO - BOI
2 stops21h 36mAlaska Airlines
Deal found 4/23$350
This United Airlines deal was found by Cheapflights users on 4/23. 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 6/210:45 amBOI - SJO
1 stop20h 30mUnited Airlines
Sun 6/86:00 amSJO - BOI
1 stop9h 59mUnited Airlines
Deal found 4/23$406
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Fri 7/45:30 amGEG - SJO
2 stops27h 41mUnited Airlines
Tue 7/225:30 amSJO - GEG
2 stops18h 38mUnited Airlines
Deal found 4/23$425
This Travelocity deal was found by Cheapflights users on 4/23. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/212:16 pmBOI - SJO
2 stops23h 17mMultiple Airlines
Sat 6/71:06 amSJO - BOI
2 stops45h 36mMultiple Airlines
Deal found 4/23$430
This Delta deal was found by Cheapflights users on 4/23. 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.
Fri 6/1311:49 amBOI - SJO
2 stops17h 59mDelta
Sat 6/217:25 amSJO - BOI
2 stops16h 25mDelta
Deal found 4/23$455
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Fri 9/57:30 amBOI - SJO
1 stop10h 00mAmerican Airlines
Mon 9/157:35 amSJO - BOI
1 stop13h 39mAmerican Airlines
Deal found 4/22$462
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Fri 5/237:50 amJAC - LIR
1 stop10h 13mUnited Airlines
Tue 5/271:20 pmLIR - JAC
2 stops20h 23mUnited Airlines
Deal found 4/23$499
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Tue 5/205:10 pmBOI - LIR
2 stops18h 10mAmerican Airlines
Wed 5/2812:45 pmLIR - BOI
2 stops24h 00mAmerican Airlines
Deal found 4/23$501
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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.
Fri 7/46:00 amGEG - SJO
2 stops16h 30mAlaska Airlines
Mon 7/2112:50 amSJO - GEG
1 stop17h 57mAlaska Airlines
Deal found 4/22$511
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/284:15 pmBOI - SJO
2 stops19h 50mSouthwest
Wed 11/129:00 amSJO - BOI
2 stops15h 10mSouthwest
Deal found 4/23$513
This United Airlines deal was found by Cheapflights users on 4/23. 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 6/71:37 pmGEG - LIR
2 stops19h 23mUnited Airlines
Sat 6/147:00 amLIR - GEG
1 stop17h 14mUnited Airlines
Deal found 4/23$515

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 April 24, 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

Thu 8/14

6:10 am-5:45 pm

1 stop10h 35m

San José Juan Santamaria Intl

Thu 8/21

7:40 am-8:27 pm

1 stop13h 47m

$316

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 5/28

5:39 pm-11:46 pm

2 stops30h 07m

San José Juan Santamaria Intl

Tue 6/3

1:06 am-10:42 pm

2 stops21h 36m

$350

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 6/2

10:45 am-7:15 am

1 stop20h 30m

San José Juan Santamaria Intl

Sun 6/8

6:00 am-3:59 pm

1 stop9h 59m

$406

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Fri 7/4

5:30 am-10:11 am

2 stops27h 41m

San José Juan Santamaria Intl

Tue 7/22

5:30 am-11:08 pm

2 stops18h 38m

$425

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 6/2

12:16 pm-11:33 am

2 stops23h 17m

San José Juan Santamaria Intl

Sat 6/7

1:06 am-10:42 pm

2 stops45h 36m

$430

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Fri 6/13

11:49 am-5:48 am

2 stops17h 59m

San José Juan Santamaria Intl

Sat 6/21

7:25 am-11:50 pm

2 stops16h 25m

$455

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Fri 9/5

7:30 am-5:30 pm

1 stop10h 00m

San José Juan Santamaria Intl

Mon 9/15

7:35 am-9:14 pm

1 stop13h 39m

$462

JacksonLiberia

JAC - LIR

JACLIR

Jackson Hole

Fri 5/23

7:50 am-6:03 pm

1 stop10h 13m

Liberia

Tue 5/27

1:20 pm-9:43 am

2 stops20h 23m

$499

BoiseLiberia

BOI - LIR

BOILIR

Boise Air Term. Gowen Fld

Tue 5/20

5:10 pm-11:20 am

2 stops18h 10m

Liberia

Wed 5/28

12:45 pm-12:45 pm

2 stops24h 00m

$501

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Fri 7/4

6:00 am-11:30 pm

2 stops16h 30m

San José Juan Santamaria Intl

Mon 7/21

12:50 am-5:47 pm

1 stop17h 57m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 29 results
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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 April 24, 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.

Rainfall in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Costa Rica ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit Costa Rica when rainfall is around 0.0 in.

Temperature in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Costa Rica, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Rica. Reviews last updated April 24, 2025.
Read through reviews of airlines operating flights from Idaho to Costa Rica, such as Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Copa Airlines
7.6
Good
1,411 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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.

  • 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 Delta ($213), United Airlines ($254), and American Airlines ($267).

  • 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

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Alternative routes for Idaho to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$245Average$605FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$416Average$684FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$429Average$703FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$471Average$786FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$559Average$723FlexibilityNo cancel feeOn-time63%

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