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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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJO
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$320
(American Airlines)

One-way from

$133
(American Airlines)

Popular in

December

Cheapest in

August

Average price

$679
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. 7% potential increase in price ($52 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 July 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 July 30, 2025.

This American Airlines deal was found by Cheapflights users on 7/28. 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 9/111:30 pmGEG - SJO
2 stops20h 42mAmerican Airlines
Thu 9/187:00 amSJO - GEG
1 stop16h 35mAmerican Airlines
Deal found 7/28$320
This Delta deal was found by Cheapflights users on 7/28. 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 56mDelta
Sat 11/11:21 pmSJO - BOI
2 stops21h 56mDelta
Deal found 7/28$320
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 10/810:15 amBOI - SJO
2 stops56h 49mAlaska Airlines
Tue 10/281:11 amSJO - BOI
2 stops15h 06mAlaska Airlines
Deal found 7/29$323
This American Airlines deal was found by Cheapflights users on 7/28. 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 8/261:36 pmBOI - SJO
1 stop28h 39mAmerican Airlines
Wed 9/36:00 amSJO - BOI
2 stops15h 48mAmerican Airlines
Deal found 7/28$328
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 11/135:00 amGEG - SJO
2 stops17h 38mAlaska Airlines
Sun 11/161:58 amSJO - GEG
2 stops23h 17mAlaska Airlines
Deal found 7/30$370
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 10/145:38 pmBOI - LIR
2 stops23h 50mAlaska Airlines
Tue 10/2110:00 amLIR - BOI
2 stops25h 09mAlaska Airlines
Deal found 7/29$377
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 10/151:33 pmBOI - LIR
2 stops22h 12mAmerican Airlines
Wed 10/2212:45 pmLIR - BOI
2 stops24h 01mAmerican Airlines
Deal found 7/29$397
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 9/101:25 pmGEG - LIR
1 stop15h 55mAlaska Airlines
Mon 9/1511:20 amLIR - GEG
1 stop12h 05mAlaska Airlines
Deal found 7/28$409
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 11/1312:45 pmGEG - SJO
2 stops20h 40mUnited Airlines
Mon 11/178:45 amSJO - GEG
2 stops30h 00mUnited Airlines
Deal found 7/30$430
This United Airlines deal was found by Cheapflights users on 7/29. 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 9/277:00 amSUN - SJO
2 stops29h 26mUnited Airlines
Tue 9/301:30 pmSJO - SUN
2 stops24h 03mUnited Airlines
Deal found 7/29$430
This United Airlines deal was found by Cheapflights users on 7/29. 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 9/202:45 pmBOI - SJO
2 stops21h 41mUnited Airlines
Sat 9/278:37 amSJO - BOI
1 stop15h 07mUnited Airlines
Deal found 7/29$430
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2212:25 pmGEG - SJO
3 stops25h 52mMultiple Airlines
Sun 8/245:30 amSJO - GEG
2 stops31h 05mMultiple Airlines
Deal found 7/28$442

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 July 30, 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 9/11

1:30 pm-11:12 am

2 stops20h 42m

San José Juan Santamaria Intl

Thu 9/18

7:00 am-10:35 pm

1 stop16h 35m

$320

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 10/27

4:00 pm-11:56 am

2 stops19h 56m

San José Juan Santamaria Intl

Sat 11/1

1:21 pm-11:17 am

2 stops21h 56m

$320

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 10/8

10:15 am-7:04 pm

2 stops56h 49m

San José Juan Santamaria Intl

Tue 10/28

1:11 am-4:17 pm

2 stops15h 06m

$323

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 8/26

1:36 pm-6:15 pm

1 stop28h 39m

San José Juan Santamaria Intl

Wed 9/3

6:00 am-9:48 pm

2 stops15h 48m

$328

BoiseLiberia

BOI - LIR

BOILIR

Boise Air Term. Gowen Fld

Tue 10/14

5:38 pm-5:28 pm

2 stops23h 50m

Liberia

Tue 10/21

10:00 am-11:09 am

2 stops25h 09m

$377

BoiseLiberia

BOI - LIR

BOILIR

Boise Air Term. Gowen Fld

Wed 10/15

1:33 pm-11:45 am

2 stops22h 12m

Liberia

Wed 10/22

12:45 pm-12:46 pm

2 stops24h 01m

$397

Idaho FallsSan José

IDA - SJO

IDASJO

Idaho Falls Fanning Field

Tue 1/6

1:44 pm-2:10 pm

2 stops23h 26m

San José Juan Santamaria Intl

Tue 2/10

3:50 pm-12:20 pm

2 stops21h 30m

$402

JacksonSan José

JAC - SJO

JACSJO

Jackson Hole

Wed 1/14

2:02 pm-11:00 pm

1 stop7h 58m

San José Juan Santamaria Intl

Wed 1/21

3:50 pm-2:17 pm

2 stops23h 27m

$402

SpokaneLiberia

GEG - LIR

GEGLIR

Spokane

Wed 9/10

1:25 pm-6:20 am

1 stop15h 55m

Liberia

Mon 9/15

11:20 am-10:25 pm

1 stop12h 05m

$409

JacksonSan José

JAC - SJO

JACSJO

Jackson Hole

Sat 1/17

1:10 pm-12:55 pm

2 stops22h 45m

San José Juan Santamaria Intl

Thu 1/22

2:20 pm-2:07 pm

2 stops24h 47m

$423

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 45 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 July 30, 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.

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 July 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Idaho to Costa Rica. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Copa Airlines
7.5
Good
1,493 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 American Airlines ($133), Delta ($138), and Alaska Airlines ($171).

  • 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

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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$429Average$694FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$436Average$774FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$439Average$702FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$557Average$691FlexibilityNo cancel feeOn-time63%
Copa AirlinesCheapest$591Average$1,197FlexibilityNo cancel feeOn-time70%

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