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San José

$179+ Cheap flights from Idaho to San José (SJO)

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJO
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
1 adult, Economy
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Cheap flight deals from Idaho to San José

Cheapest flights from Idaho to San José
Explore the most affordable flight options available from Idaho to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2026.

This Alaska Airlines deal was found by Cheapflights users on 3/16. 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.
Sun 5/317:00 am
GEG
-
SJO
1 stop15h 33m
Alaska Airlines
Thu 6/412:53 am
SJO
-
GEG
1 stop15h 36m
Alaska Airlines
Deal found 3/16$400
This Alaska Airlines deal was found by Cheapflights users on 3/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:09 am
GEG
-
SJO
1 stop15h 36m
Alaska Airlines
Sun 5/1712:53 am
SJO
-
GEG
2 stops16h 02m
Alaska Airlines
Deal found 3/17$405
This American Airlines deal was found by Cheapflights users on 3/16. 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.
Mon 4/206:26 pm
BOI
-
SJO
2 stops17h 09m
American Airlines
Mon 5/42:22 pm
SJO
-
BOI
2 stops22h 41m
American Airlines
Deal found 3/16$405
This American Airlines deal was found by Cheapflights users on 3/19. 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.
Sat 9/2612:45 pm
GEG
-
SJO
2 stops21h 20m
American Airlines
Sun 10/41:05 pm
SJO
-
GEG
2 stops23h 53m
American Airlines
Deal found 3/19$410
This Alaska Airlines deal was found by Cheapflights users on 3/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:41 pm
GEG
-
SJO
2 stops27h 04m
Alaska Airlines
Sun 5/1712:53 am
SJO
-
GEG
1 stop22h 59m
Alaska Airlines
Deal found 3/17$413
This American Airlines deal was found by Cheapflights users on 3/19. 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 9/112:45 pm
GEG
-
SJO
1 stop24h 13m
American Airlines
Wed 9/301:05 pm
SJO
-
GEG
2 stops23h 35m
American Airlines
Deal found 3/19$414
This Expedia deal was found by Cheapflights users on 3/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:47 pm
GEG
-
SJO
1 stop24h 43m
Alaska Airlines
Mon 11/91:45 am
SJO
-
GEG
1 stop22h 40m
Alaska Airlines
Deal found 3/16$416
This Alaska Airlines deal was found by Cheapflights users on 3/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:42 pm
GEG
-
SJO
2 stops46h 48m
Alaska Airlines
Fri 10/307:00 am
SJO
-
GEG
1 stop11h 21m
Alaska Airlines
Deal found 3/18$418
This Alaska Airlines deal was found by Cheapflights users on 3/16. 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.
Mon 5/47:20 pm
BOI
-
SJO
2 stops28h 25m
Alaska Airlines
Sun 5/1712:53 am
SJO
-
BOI
2 stops32h 32m
Alaska Airlines
Deal found 3/16$418
This United Airlines deal was found by Cheapflights users on 3/16. 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.
Mon 4/207:03 pm
BOI
-
SJO
1 stop12h 12m
United Airlines
Wed 4/228:45 am
SJO
-
BOI
1 stop11h 08m
United Airlines
Deal found 3/16$420
This United Airlines deal was found by Cheapflights users on 3/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/21:41 pm
GEG
-
SJO
2 stops14h 49m
United Airlines
Sat 5/96:00 am
SJO
-
GEG
2 stops16h 16m
United Airlines
Deal found 3/18$425
This United Airlines deal was found by Cheapflights users on 3/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:30 pm
SUN
-
SJO
2 stops15h 00m
United Airlines
Sat 5/91:00 pm
SJO
-
SUN
2 stops24h 38m
United Airlines
Deal found 3/18$425

Find flight deals from Idaho to San José

Keep the following information in mind while searching for Idaho to San José flight deals. Data was last updated March 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$400
(Alaska Airlines)

One-way from

$179
(Expedia)

Popular in

December

Cheapest in

January

Average price

$615
Provider with most accurate pricing for Boise Air Term. Gowen Fld-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-San José Juan Santamaria Intl flights.
Search Deals
From Idaho to San José Juan Santamaria Intl
Search Deals
One-way flight from Idaho to San José Juan Santamaria Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to San José 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 March 21, 2026.
Use the filters below to find and compare flights from Idaho to San José that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Sun 5/31

7:00 am-11:33 pm

1 stop15h 33m

San José Juan Santamaria Intl

Thu 6/4

12:53 am-3:29 pm

1 stop15h 36m

$400

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Wed 5/6

6:00 am-11:45 pm

2 stops16h 45m

San José Juan Santamaria Intl

Sun 5/10

12:55 am-9:31 pm

2 stops21h 36m

$405

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 5/4

7:20 pm-11:45 pm

2 stops28h 25m

San José Juan Santamaria Intl

Sun 5/17

12:53 am-9:25 am

2 stops32h 32m

$418

HaileySan José

SUN - SJO

SUNSJO

Hailey Sun Valley-Friedman

Sat 5/2

2:30 pm-5:30 am

2 stops15h 00m

San José Juan Santamaria Intl

Sat 5/9

1:00 pm-1:38 pm

2 stops24h 38m

$425

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sun 5/10

6:00 am-11:45 pm

2 stops17h 45m

San José Juan Santamaria Intl

Thu 5/14

12:53 am-11:58 pm

2 stops23h 05m

$445

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Wed 4/15

1:46 pm-12:21 pm

2 stops21h 35m

San José Juan Santamaria Intl

Wed 4/22

8:45 am-6:51 pm

1 stop11h 06m

$457

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Fri 5/8

4:20 pm-7:15 am

1 stop14h 55m

San José Juan Santamaria Intl

Fri 5/15

8:45 am-9:17 pm

1 stop12h 32m

$486

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 8/1

4:07 pm-1:00 pm

2 stops20h 53m

San José Juan Santamaria Intl

Sun 8/9

6:00 am-11:26 am

2 stops29h 26m

$499

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Thu 4/9

12:35 pm-10:11 am

2 stops20h 36m

San José Juan Santamaria Intl

Thu 4/23

11:13 am-11:43 am

2 stops25h 30m

$501

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Fri 5/8

7:14 pm-11:45 pm

1 stop28h 31m

San José Juan Santamaria Intl

Thu 5/14

12:53 am-11:58 pm

2 stops23h 05m

$503

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 47 resultsSorted by cheapest first
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Best time to book a flight from Idaho to San José

Have a flexible travel schedule? Discover the best time to fly to San José 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 San José

What is the cheapest month to book a flight from Idaho to San José?

Currently, October is the cheapest month in which you can book a flight from Idaho to San José (average of $165). Flying from Idaho to San José in December is currently the most expensive (average of $561). 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.

How much does it cost to fly round-trip from Idaho to San José?

Related info for your journey

Find useful and relevant information for your journey from Idaho to San José. 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 into for flights to San José from Idaho?

    If you book a flight to San José from Idaho, you will be flying to Juan Santamaria Intl, which is the city’s only airport. San José Juan Santamaria Intl (SJO) is located 8.8 mi from the center of San José.

  • How long is the flight from Idaho to San José?

    Airlines like Alaska Airlines, United Airlines, and GOL fly from Idaho to San José in about 15h. The time it takes to get you to your destination can typically vary by up to 5h 53m. There are 2933 mi between Idaho and San José. This flight may include one or multiple stops.

  • What are the most popular routes from Idaho to San José?

    Most travelers choose Boise Air Term. Gowen Fld - San José Juan Santamaria Intl, Spokane - San José Juan Santamaria Intl or Jackson Hole - San José Juan Santamaria Intl when deciding on the best route from Idaho to San José.

  • Can I find deals for flights from Idaho to San José that include hotel bookings?

    Yes. In addition to deals on Idaho to San José flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to San José?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to San José.

  • Can I find deals for business class flights from Idaho to San José?

    Yes. Cheapflights offers flight deals from Idaho to San José 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 San José?

    Currently, October is the cheapest month in which you can book a flight from Idaho to San José (average of $165). Flying from Idaho to San José in December is currently the most expensive (average of $561). 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

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Alajuela
Monteverde
Jacó
Heredia
Dominical
Manuel Antonio

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Top 5 airlines flying from Idaho to San José

Discover the top 5 airlines that operate flights from Idaho to San José. 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 March 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$141Average$815FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$279Average$702FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$297Average$455FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$376Average$675FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$454Average$698FlexibilityNo cancel feeOn-time63%

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