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Costa Rica

$140+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJO
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$347
(Alaska Airlines)

One-way from

$140
(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. 4% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 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 2, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/1. 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 5/146:30 amBOI - SJO
2 stops17h 22mAlaska Airlines
Tue 5/201:06 amSJO - BOI
2 stops22h 53mAlaska Airlines
Deal found 4/1$347
This United Airlines deal was found by Cheapflights users on 4/1. 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 5/157:10 pmBOI - SJO
2 stops17h 16mUnited Airlines
Tue 6/38:45 amSJO - BOI
1 stop12h 59mUnited Airlines
Deal found 4/1$374
This American Airlines deal was found by Cheapflights users on 4/1. 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 5/67:14 amBOI - SJO
1 stop15h 03mAmerican Airlines
Wed 5/1411:59 pmSJO - BOI
1 stop22h 01mAmerican Airlines
Deal found 4/1$382
This Delta deal was found by Cheapflights users on 3/31. 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.
Sat 5/311:25 amBOI - SJO
2 stops18h 45mDelta
Sat 5/107:25 amSJO - BOI
2 stops16h 47mDelta
Deal found 3/31$420
This American Airlines deal was found by Cheapflights users on 4/1. 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 8/147:44 pmGEG - SJO
2 stops16h 36mMultiple Airlines
Thu 8/212:20 pmSJO - GEG
2 stops22h 16mMultiple Airlines
Deal found 4/1$437
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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 5/97:00 amGEG - SJO
2 stops15h 52mAlaska Airlines
Thu 5/151:06 amSJO - GEG
2 stops21h 05mAlaska Airlines
Deal found 4/1$453
This United Airlines deal was found by Cheapflights users on 4/1. 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 5/1610:41 amJAC - SJO
1 stop10h 34mUnited Airlines
Fri 5/235:30 amSJO - JAC
1 stop15h 00mUnited Airlines
Deal found 4/1$479
This American Airlines deal was found by Cheapflights users on 3/31. 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 7/41:51 pmGEG - SJO
2 stops22h 03mAmerican Airlines
Tue 7/226:18 amSJO - GEG
2 stops17h 59mAmerican Airlines
Deal found 3/31$483
This American Airlines deal was found by Cheapflights users on 4/1. 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 4/153:21 pmGEG - LIR
2 stops20h 44mAmerican Airlines
Tue 4/292:05 pmLIR - GEG
2 stops24h 33mAmerican Airlines
Deal found 4/1$483
This United deal was found by Cheapflights users on 4/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/93:25 pmGEG - SJO
2 stops20h 01mUnited Airlines
Fri 5/161:30 pmSJO - GEG
2 stops32h 20mUnited Airlines
Deal found 4/1$485
This United Airlines deal was found by Cheapflights users on 3/31. 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 4/117:00 pmBOI - LIR
2 stops17h 30mUnited Airlines
Thu 4/1711:49 amLIR - BOI
1 stop9h 33mUnited Airlines
Deal found 3/31$497
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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 5/271:00 pmBOI - LIR
2 stops17h 20mAlaska Airlines
Tue 9/911:20 amLIR - BOI
2 stops12h 39mAlaska Airlines
Deal found 4/1$501

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 2, 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

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 5/14

6:30 am-11:52 pm

2 stops17h 22m

San José Juan Santamaria Intl

Tue 5/20

1:06 am-11:59 pm

2 stops22h 53m

$347

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 5/15

7:10 pm-12:26 pm

2 stops17h 16m

San José Juan Santamaria Intl

Tue 6/3

8:45 am-9:44 pm

1 stop12h 59m

$374

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 5/6

7:14 am-10:17 pm

1 stop15h 03m

San José Juan Santamaria Intl

Wed 5/14

11:59 pm-10:00 pm

1 stop22h 01m

$382

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 5/3

11:25 am-6:10 am

2 stops18h 45m

San José Juan Santamaria Intl

Sat 5/10

7:25 am-12:12 am

2 stops16h 47m

$420

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Thu 8/14

7:44 pm-1:20 pm

2 stops16h 36m

San José Juan Santamaria Intl

Thu 8/21

2:20 pm-11:36 am

2 stops22h 16m

$437

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Fri 5/9

7:00 am-11:52 pm

2 stops15h 52m

San José Juan Santamaria Intl

Thu 5/15

1:06 am-9:11 pm

2 stops21h 05m

$453

JacksonSan José

JAC - SJO

JACSJO

Jackson Hole

Fri 5/16

10:41 am-9:15 pm

1 stop10h 34m

San José Juan Santamaria Intl

Fri 5/23

5:30 am-8:30 pm

1 stop15h 00m

$479

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Fri 7/4

1:51 pm-12:54 pm

2 stops22h 03m

San José Juan Santamaria Intl

Tue 7/22

6:18 am-11:17 pm

2 stops17h 59m

$483

SpokaneLiberia

GEG - LIR

GEGLIR

Spokane

Tue 4/15

3:21 pm-1:05 pm

2 stops20h 44m

Liberia

Tue 4/29

2:05 pm-1:38 pm

2 stops24h 33m

$483

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Fri 5/9

3:25 pm-12:26 pm

2 stops20h 01m

San José Juan Santamaria Intl

Fri 5/16

1:30 pm-8:50 pm

2 stops32h 20m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 34 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 2, 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 2, 2025.
Read through reviews of airlines operating flights from Idaho to Costa Rica, such as Alaska Airlines, Delta and United Airlines. 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
9,820 reviews

Food

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,820 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Food

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,898 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Food

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,615 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Food

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Food

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 ($140), American Airlines ($190), and United Airlines ($241).

  • 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 6 airlines flying from Idaho to Costa Rica

Discover the top 6 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 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$269Average$359FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$416Average$660FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$429Average$703FlexibilityNo cancel feeOn-time75%
DeltaCheapest$470Average$606FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$480Average$795FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$559Average$723FlexibilityNo cancel feeOn-time63%

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