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San José

$133+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJO
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$298
(United Airlines)

One-way from

$133
(American Airlines)

Popular in

December

Cheapest in

August

Average price

$572
From Idaho to San José Juan Santamaria Intl
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One-way flight from Idaho to San José Juan Santamaria Intl
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Highest demand for flights based on searches. 9% potential increase in price ($63 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 September 2025
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Find 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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 10/2512:35 pmGEG - SJO
1 stop17h 40mUnited Airlines
Sat 11/18:40 amSJO - GEG
1 stop15h 49mUnited Airlines
Deal found 9/10$298
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/255:39 pmBOI - SJO
2 stops16h 46mUnited Airlines
Sat 11/16:30 amSJO - BOI
1 stop11h 39mUnited Airlines
Deal found 9/10$298
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 11/115:54 amBOI - SJO
2 stops17h 44mAlaska Airlines
Mon 11/171:55 amSJO - BOI
2 stops21h 25mAlaska Airlines
Deal found 9/11$302
This SmartFares deal was found by Cheapflights users on 9/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/37:39 pmGEG - SJO
2 stops26h 59mAlaska Airlines
Tue 11/111:55 amSJO - GEG
2 stops21h 19mAlaska Airlines
Deal found 9/11$312
This United Airlines deal was found by Cheapflights users on 9/11. 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 11/31:47 pmGEG - SJO
2 stops19h 38mUnited Airlines
Wed 11/129:40 amSJO - GEG
1 stop15h 49mUnited Airlines
Deal found 9/11$313
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 11/138:50 amBOI - SJO
2 stops14h 48mAlaska Airlines
Sun 11/161:55 amSJO - BOI
2 stops40h 16mAlaska Airlines
Deal found 9/10$314
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Sun 10/2612:33 pmGEG - SJO
2 stops22h 32mAmerican Airlines
Sun 11/22:39 pmSJO - GEG
1 stop28h 03mAmerican Airlines
Deal found 9/11$329
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/112:44 pmBOI - SJO
1 stop16h 31mUnited Airlines
Sat 10/257:55 amSJO - BOI
2 stops15h 47mUnited Airlines
Deal found 9/10$330
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 11/57:00 amGEG - SJO
1 stop15h 38mAlaska Airlines
Mon 12/151:30 amSJO - GEG
2 stops24h 54mAlaska Airlines
Deal found 9/10$332
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/258:26 pmBOI - SJO
1 stop27h 25mAlaska Airlines
Fri 10/3112:55 amSJO - BOI
2 stops16h 16mAlaska Airlines
Deal found 9/10$339
This Delta deal was found by Cheapflights users on 9/11. 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.
Thu 11/1311:35 pmBOI - SJO
1 stop12h 31mDelta
Mon 11/177:00 amSJO - BOI
2 stops18h 09mDelta
Deal found 9/11$341
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sun 9/147:09 pmBOI - SJO
1 stop12h 06mUnited Airlines
Tue 9/168:37 amSJO - BOI
1 stop14h 57mUnited Airlines
Deal found 9/10$358

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 September 11, 2025.
Use the filters below to find and compare flights from Idaho to San José that are best for you.

Fly from

Idaho

Fly to

San José

Route

Depart

Return

Price

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Sat 10/25

1:38 pm-10:25 am

2 stops19h 47m

San José Juan Santamaria Intl

Sat 11/1

6:30 am-3:21 pm

1 stop9h 51m

$298

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 11/13

7:00 pm-11:25 am

2 stops15h 25m

San José Juan Santamaria Intl

Mon 11/17

9:40 am-11:28 pm

1 stop14h 48m

$298

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Fri 10/24

7:05 pm-12:26 pm

2 stops17h 21m

San José Juan Santamaria Intl

Fri 10/31

8:40 am-6:54 pm

1 stop10h 14m

$298

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 10/25

5:39 pm-10:25 am

2 stops16h 46m

San José Juan Santamaria Intl

Sat 11/1

6:30 am-6:09 pm

1 stop11h 39m

$298

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 10/18

5:39 pm-12:26 pm

2 stops18h 47m

San José Juan Santamaria Intl

Fri 10/31

8:40 am-6:54 pm

1 stop10h 14m

$298

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 1/12

7:05 pm-8:32 am

1 stop12h 27m

San José Juan Santamaria Intl

Wed 1/21

8:45 am-11:48 pm

2 stops16h 03m

$317

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 10/11

2:44 pm-7:15 am

1 stop16h 31m

San José Juan Santamaria Intl

Sat 10/25

7:55 am-11:42 pm

2 stops15h 47m

$330

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Wed 11/5

7:00 am-12:38 am

1 stop15h 38m

San José Juan Santamaria Intl

Mon 12/15

1:30 am-12:24 am

2 stops24h 54m

$332

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 10/25

8:26 pm-11:51 pm

1 stop27h 25m

San José Juan Santamaria Intl

Fri 10/31

12:55 am-5:11 pm

2 stops16h 16m

$339

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 11/13

11:35 pm-1:06 pm

1 stop12h 31m

San José Juan Santamaria Intl

Mon 11/17

7:00 am-12:09 am

2 stops18h 09m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 43 results
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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, San José Province?

Currently, September is the cheapest month in which you can book a flight from Idaho to San José, San José Province (average of $398). Flying from Idaho to San José, San José Province 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 SJO?

Find hourly flight availability from Idaho to San José. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to San José, San José Province as you normally would.

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, San José Province?

    United Airlines, Alaska Airlines, and American Airlines can get you from Idaho to San José, San José Province in just under 15h 38m. Your travel time can differ by up to 8h 14m. Idaho and San José, San José Province are separated by a distance of 3240 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    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, San José Province.

  • 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, San José Province?

    Currently, September is the cheapest month in which you can book a flight from Idaho to San José, San José Province (average of $398). Flying from Idaho to San José, San José Province 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

Traveling to a place near San José?

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

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Alternative routes for Idaho to San José

See prices for flight routes from nearby airports that may be better suited for you.
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Minneapolis to Liberia flights
Boston to Liberia flights
Dulles Intl to Liberia flights
Ontario to San José flights
Midway to San José flights
Atlanta to Liberia flights
Minneapolis to San José flights
Reagan-National to Liberia flights
San Francisco to Liberia flights
Baltimore to Liberia flights
Sky Harbor Intl to San José flights
Philadelphia to San José flights
Detroit to San José flights
Seattle to Liberia flights
Dallas/Fort Worth to Liberia flights
Miami to Liberia flights
Raleigh to San José flights
Austin to San José flights
Hobby to Liberia flights
Portland to San José flights
Tampa to San José flights
Salt Lake City to San José flights
Charlotte to San José flights
George Bush Intcntl to Liberia flights
San Diego to San José flights

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$141Average$1,005FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$404Average$651FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$430Average$688FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$439Average$742FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$559Average$723FlexibilityNo cancel feeOn-time63%

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