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$488+ Cheap flights from Boise (BOI) to Costa Rica

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJO
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$488
(American Airlines)

Popular in

March

Cheapest in

September

Average price

$626
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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Highest demand for flights based on searches. 3% potential increase in price ($24 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 February 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 February 20, 2025.

This American Airlines deal was found by Cheapflights users on 2/19. 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 5/201:32 pmBOI - SJO
1 stop8h 45mAmerican Airlines
Thu 5/2911:59 pmSJO - BOI
1 stop12h 30mAmerican Airlines
Deal found 2/19$488
This American Airlines deal was found by Cheapflights users on 2/18. 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 3/265:15 pmBOI - LIR
2 stops17h 58mAmerican Airlines
Wed 4/162:05 pmLIR - BOI
2 stops23h 16mAmerican Airlines
Deal found 2/18$492
This Mytrip deal was found by Cheapflights users on 2/19. 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.
Sun 3/161:31 pmBOI - SJO
3 stops44h 54mSpirit Airlines
Mon 3/2412:50 amSJO - BOI
3 stops35h 46mSpirit Airlines
Deal found 2/19$495
This Mytrip deal was found by Cheapflights users on 2/19. 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.
Sun 3/161:31 pmBOI - SJO
3 stops44h 54mMultiple Airlines
Tue 3/253:31 pmSJO - BOI
3 stops21h 05mMultiple Airlines
Deal found 2/19$510
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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 3/268:08 amBOI - LIR
1 stop22h 28mAlaska Airlines
Wed 4/166:06 pmLIR - BOI
1 stop18h 17mAlaska Airlines
Deal found 2/19$515
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Wed 3/196:56 pmBOI - LIR
2 stops17h 12mUnited Airlines
Wed 3/261:14 pmLIR - BOI
2 stops24h 14mUnited Airlines
Deal found 2/20$535
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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 5/207:06 pmBOI - SJO
2 stops28h 40mAlaska Airlines
Wed 5/281:06 amSJO - BOI
2 stops19h 44mAlaska Airlines
Deal found 2/20$535
This United Airlines deal was found by Cheapflights users on 2/19. 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 7/16:43 pmBOI - SJO
1 stop12h 32mUnited Airlines
Tue 7/85:30 amSJO - BOI
2 stops15h 46mUnited Airlines
Deal found 2/19$555
This Delta deal was found by Cheapflights users on 2/20. 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 3/45:59 pmBOI - LIR
2 stops17h 43mDelta
Thu 3/131:16 pmLIR - BOI
1 stop10h 43mDelta
Deal found 2/20$602
This Copa Airlines deal was found by Cheapflights users on 2/19. 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.
Thu 3/68:00 amBOI - SJO
2 stops23h 07mCopa Airlines
Tue 3/114:09 amSJO - BOI
2 stops19h 06mCopa Airlines
Deal found 2/19$687
This Mytrip deal was found by Cheapflights users on 2/19. 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.
Sun 2/237:41 pmBOI - LIR
3 stops41h 49mMultiple Airlines
Sat 3/13:50 pmLIR - BOI
2 stops27h 56mMultiple Airlines
Deal found 2/19$1,126
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Sat 3/19:25 amBOI - LIR
2 stops20h 42mWestJet
Tue 3/42:55 pmLIR - BOI
3 stops28h 55mWestJet
Deal found 2/20$2,481

Find flights from Boise to Costa Rica within your budget

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 February 20, 2025.

Fly from

Boise

Fly to

Costa Rica

Route

Depart

Return

Price

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 5/20

1:32 pm-10:17 pm

1 stop8h 45m

San José Juan Santamaria Intl

Thu 5/29

11:59 pm-12:29 pm

1 stop12h 30m

$488

BoiseLiberia

BOI - LIR

BOILIR

Boise Air Term. Gowen Fld

Wed 3/26

5:15 pm-11:13 am

2 stops17h 58m

Liberia

Wed 4/16

2:05 pm-1:21 pm

2 stops23h 16m

$492

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sun 3/16

1:31 pm-10:25 am

3 stops44h 54m

San José Juan Santamaria Intl

Mon 3/24

12:50 am-12:36 pm

3 stops35h 46m

$495

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sun 3/16

1:31 pm-10:25 am

3 stops44h 54m

San José Juan Santamaria Intl

Tue 3/25

3:31 pm-12:36 pm

3 stops21h 05m

$510

BoiseLiberia

BOI - LIR

BOILIR

Boise Air Term. Gowen Fld

Wed 3/26

8:08 am-6:36 am

1 stop22h 28m

Liberia

Wed 4/16

6:06 pm-12:23 pm

1 stop18h 17m

$515

BoiseLiberia

BOI - LIR

BOILIR

Boise Air Term. Gowen Fld

Wed 3/19

6:56 pm-12:08 pm

2 stops17h 12m

Liberia

Wed 3/26

1:14 pm-1:28 pm

2 stops24h 14m

$535

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 5/20

7:06 pm-11:46 pm

2 stops28h 40m

San José Juan Santamaria Intl

Wed 5/28

1:06 am-8:50 pm

2 stops19h 44m

$535

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 3/17

6:56 pm-8:55 pm

2 stops25h 59m

San José Juan Santamaria Intl

Wed 3/26

5:30 am-11:15 pm

2 stops17h 45m

$582

BoiseLiberia

BOI - LIR

BOILIR

Boise Air Term. Gowen Fld

Tue 3/4

5:59 pm-12:42 pm

2 stops17h 43m

Liberia

Thu 3/13

1:16 pm-11:59 pm

1 stop10h 43m

$602

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 3/6

8:00 am-8:07 am

2 stops23h 07m

San José Juan Santamaria Intl

Tue 3/11

4:09 am-11:15 pm

2 stops19h 06m

$687

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 13 results
1
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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.

Travel insights for flights from Boise to Costa Rica

Get recent, data-driven insights about flights from Boise to Costa Rica including ideal travel times, pricing trends, and more.

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 February 20, 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 February 20, 2025.
Read through reviews of airlines operating flights from Boise to Costa Rica, such as Alaska Airlines, Delta and Copa Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,692 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

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
9,692 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

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
8,220 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

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

Copa Airlines
7.6
Good
1,510 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

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
8,766 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

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
9,692 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

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 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.

  • 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

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Alternative routes for Boise 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 Boise to Costa Rica

Discover the top 6 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$269Average$382FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$416Average$616FlexibilityNo cancel feeOn-time71%
DeltaCheapest$421Average$536FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$429Average$699FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$471Average$755FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$559Average$723FlexibilityNo cancel feeOn-time63%
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