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$142+ Cheap flights from Boise (BOI) 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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJO
abr. 22 — abr. 291
mar. 4/22
mar. 4/29
1 adult, Economy
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Cheap flight deals from Boise to Costa Rica

Keep the following information in mind while searching for Boise to Costa Rica flight deals. Data was last updated abril 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$362
(Alaska Airlines)

One-way from

$142
(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 Boise Air Term. Gowen Fld to Costa Rica
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One-way flight from Boise Air Term. Gowen Fld to Costa Rica
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Highest demand for flights based on searches. 5% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 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 Boise to Costa Rica

Cheapest flights from Boise to Costa Rica
Explore the most affordable flight options available from Boise to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 17, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/16. 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.
mié. 5/285:39 pmBOI - SJO
2 stops30h 07mAlaska Airlines
mar. 6/31:06 amSJO - BOI
2 stops40h 05mAlaska Airlines
Deal found 4/16$362
This Delta deal was found by Cheapflights users on 4/16. 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.
vie. 6/1311:40 pmBOI - SJO
1 stop12h 20mDelta
sáb. 6/217:25 amSJO - BOI
2 stops12h 57mDelta
Deal found 4/16$405
This United Airlines deal was found by Cheapflights users on 4/17. 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.
mié. 5/287:07 pmBOI - SJO
1 stop12h 08mUnited Airlines
mié. 6/48:45 amSJO - BOI
1 stop31h 56mUnited Airlines
Deal found 4/17$412
This American Airlines deal was found by Cheapflights users on 4/16. 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.
lun. 9/17:30 amBOI - SJO
1 stop10h 15mAmerican Airlines
lun. 9/227:35 amSJO - BOI
1 stop13h 39mAmerican Airlines
Deal found 4/16$457
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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.
mar. 5/275:39 pmBOI - LIR
2 stops12h 41mAlaska Airlines
mar. 9/911:20 amLIR - BOI
2 stops23h 19mAlaska Airlines
Deal found 4/16$499
This United Airlines deal was found by Cheapflights users on 4/16. 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.
mié. 8/272:45 pmBOI - LIR
2 stops21h 25mUnited Airlines
mié. 9/31:20 pmLIR - BOI
2 stops20h 23mUnited Airlines
Deal found 4/16$501
This American Airlines deal was found by Cheapflights users on 4/16. 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.
dom. 4/275:18 pmBOI - LIR
2 stops18h 02mAmerican Airlines
sáb. 5/32:17 pmLIR - BOI
2 stops23h 04mAmerican Airlines
Deal found 4/16$503
This Southwest deal was found by Cheapflights users on 4/16. 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.
mié. 11/56:10 amBOI - SJO
2 stops13h 20mSouthwest
mié. 11/129:00 amSJO - BOI
2 stops15h 10mSouthwest
Deal found 4/16$513
This Mytrip deal was found by Cheapflights users on 4/16. 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.
sáb. 6/72:35 pmBOI - SJO
3 stops19h 52mMultiple Airlines
sáb. 6/1412:28 pmSJO - BOI
3 stops44h 13mMultiple Airlines
Deal found 4/16$642
This Copa Airlines deal was found by Cheapflights users on 4/16. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/52:11 pmBOI - SJO
2 stops16h 38mCopa Airlines
mar. 11/114:13 amSJO - BOI
2 stops19h 52mCopa Airlines
Deal found 4/16$728
This Mytrip deal was found by Cheapflights users on 4/16. 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.
vie. 6/209:36 amBOI - LIR
3 stops26h 48mMultiple Airlines
vie. 6/277:05 amLIR - BOI
2 stops16h 45mMultiple Airlines
Deal found 4/16$980

Cheapflights Fare Finder

Customize your flight search to find flights from Boise 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 abril 17, 2025.
Use the filters below to find and compare flights from Boise to Costa Rica that are best for you.

Fly from

Boise

Fly to

Costa Rica

Route

Depart

Return

Price

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

mié. 5/28

5:39 pm-11:46 pm

2 stops30h 07m

San José Juan Santamaria Intl

mar. 6/3

1:06 am-5:11 pm

2 stops40h 05m

$362

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

vie. 6/13

11:40 pm-12:00 pm

1 stop12h 20m

San José Juan Santamaria Intl

sáb. 6/21

7:25 am-8:22 pm

2 stops12h 57m

$405

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

mié. 5/28

7:07 pm-7:15 am

1 stop12h 08m

San José Juan Santamaria Intl

mié. 6/4

8:45 am-4:41 pm

1 stop31h 56m

$412

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

lun. 9/1

7:30 am-5:45 pm

1 stop10h 15m

San José Juan Santamaria Intl

lun. 9/22

7:35 am-9:14 pm

1 stop13h 39m

$457

BoiseLiberia

BOI - LIR

BOILIR

Boise Air Term. Gowen Fld

mar. 5/27

5:39 pm-6:20 am

2 stops12h 41m

Liberia

mar. 9/9

11:20 am-10:39 am

2 stops23h 19m

$499

BoiseLiberia

BOI - LIR

BOILIR

Boise Air Term. Gowen Fld

mié. 8/27

2:45 pm-12:10 pm

2 stops21h 25m

Liberia

mié. 9/3

1:20 pm-9:43 am

2 stops20h 23m

$501

BoiseLiberia

BOI - LIR

BOILIR

Boise Air Term. Gowen Fld

dom. 4/27

5:18 pm-11:20 am

2 stops18h 02m

Liberia

sáb. 5/3

2:17 pm-1:21 pm

2 stops23h 04m

$503

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

sáb. 6/7

2:35 pm-10:27 am

3 stops19h 52m

San José Juan Santamaria Intl

sáb. 6/14

12:28 pm-8:41 am

3 stops44h 13m

$642

BoiseLiberia

BOI - LIR

BOILIR

Boise Air Term. Gowen Fld

vie. 6/20

9:36 am-12:24 pm

3 stops26h 48m

Liberia

vie. 6/27

7:05 am-11:50 pm

2 stops16h 45m

$980

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

mié. 7/2

11:40 pm-12:00 pm

1 stop12h 20m

$142

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 19 results
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Best time to book a flight from Boise to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Boise 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 Boise to Costa Rica

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

Currently, September is the cheapest month in which you can book a flight from Boise to Costa Rica (average of $398). Flying from Boise 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 BOI to CR?

Find hourly flight availability from Boise 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 abril 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boise 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 abril 17, 2025.
Read through reviews of airlines operating flights from Boise to Costa Rica, such as Alaska Airlines, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

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
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

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
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

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
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

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 Boise 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 airport do you fly from for flights from Boise to Costa Rica?

    Most people fly from Boise Air Term. Gowen Fld (BOI) if they book a flight from Boise to Costa Rica. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $142. American Airlines flights start at $169 while deals on United Airlines start at $187 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise 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 Boise to Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from Boise to Costa Rica (average of $398). Flying from Boise 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 Boise to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
Boise to San José flights
Boise to Philip S.W.Goldson flights
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Hailey to Liberia flights
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Idaho Falls to Guatemala City flights
Idaho Falls to Philip S.W.Goldson flights
Spokane to Coxen Hole flights

Top 5 airlines flying from Boise to Costa Rica

Discover the top 5 airlines that operate flights from Boise 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 abril 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$416Average$590FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$429Average$704FlexibilityNo cancel feeOn-time75%
DeltaCheapest$470Average$605FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$480Average$734FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$559Average$723FlexibilityNo cancel feeOn-time63%

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