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San José

$182+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJO
Jun 15 — Jun 221
Mon 6/15
Mon 6/22
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 May 16, 2026.

This Avianca deal was found by Cheapflights users on 5/13. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:33 pm
BOI
-
SJO
2 stops13h 12m
Multiple Airlines
Thu 5/215:45 am
SJO
-
BOI
2 stops17h 13m
Multiple Airlines
Deal found 5/13$396
This American Airlines deal was found by Cheapflights users on 5/12. 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 7/283:53 pm
BOI
-
SJO
2 stops19h 57m
American Airlines
Thu 8/61:29 pm
SJO
-
BOI
2 stops21h 58m
American Airlines
Deal found 5/12$425
This FlightHub deal was found by Cheapflights users on 5/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:03 am
BOI
-
SJO
2 stops15h 37m
Multiple Airlines
Thu 8/205:45 am
SJO
-
BOI
2 stops17h 15m
Multiple Airlines
Deal found 5/13$433
This Alaska Airlines deal was found by Cheapflights users on 5/15. 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 5/307:00 am
GEG
-
SJO
1 stop15h 33m
Alaska Airlines
Mon 6/112:53 am
SJO
-
GEG
2 stops21h 25m
Alaska Airlines
Deal found 5/15$435
This American Airlines deal was found by Cheapflights users on 5/14. 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 8/125:20 pm
BOI
-
SJO
2 stops20h 32m
American Airlines
Thu 8/201:29 pm
SJO
-
BOI
2 stops21h 58m
American Airlines
Deal found 5/14$435
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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.
Wed 5/276:54 pm
BOI
-
SJO
2 stops28h 39m
Alaska Airlines
Sun 5/3112:53 am
SJO
-
BOI
2 stops40h 50m
Alaska Airlines
Deal found 5/11$438
This Alaska Airlines deal was found by Cheapflights users on 5/13. 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 5/308:51 pm
BOI
-
SJO
2 stops26h 42m
Alaska Airlines
Fri 6/512:53 am
SJO
-
BOI
2 stops34h 10m
Alaska Airlines
Deal found 5/13$439
This American Airlines deal was found by Cheapflights users on 5/13. 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 10/2112:45 pm
GEG
-
SJO
2 stops21h 20m
American Airlines
Sun 10/252:45 pm
SJO
-
GEG
2 stops22h 13m
American Airlines
Deal found 5/13$440
This FlightHub deal was found by Cheapflights users on 5/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/257:33 pm
BOI
-
SJO
2 stops13h 12m
Multiple Airlines
Mon 6/15:05 am
SJO
-
BOI
2 stops17h 53m
Multiple Airlines
Deal found 5/11$440
This Trip.com deal was found by Cheapflights users on 5/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:33 pm
BOI
-
SJO
3 stops16h 12m
Multiple Airlines
Sun 5/245:05 am
SJO
-
BOI
2 stops17h 53m
Multiple Airlines
Deal found 5/13$443
This Expedia deal was found by Cheapflights users on 5/13. 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.
Fri 5/157:33 pm
BOI
-
SJO
2 stops27h 42m
Multiple Airlines
Thu 5/215:45 am
SJO
-
BOI
2 stops17h 13m
Multiple Airlines
Deal found 5/13$450
This American Airlines deal was found by Cheapflights users on 5/14. 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 11/265:25 am
GEG
-
SJO
1 stop15h 34m
American Airlines
Sat 12/56:20 am
SJO
-
GEG
1 stop16h 37m
American Airlines
Deal found 5/14$470

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 May 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$394
(Avianca)

One-way from

$182
(eDestinos)

Popular in

December

Cheapest in

January

Average price

$610
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. 5% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 16, 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

Sat 5/30

5:00 am-11:33 pm

2 stops17h 33m

San José Juan Santamaria Intl

Mon 6/1

12:53 am-10:36 pm

2 stops22h 43m

$435

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 5/30

8:51 pm-11:33 pm

2 stops26h 42m

San José Juan Santamaria Intl

Fri 6/5

12:53 am-11:03 am

2 stops34h 10m

$439
Quickest round-trip

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 5/28

7:05 pm-7:15 am

1 stop12h 10m

San José Juan Santamaria Intl

Mon 6/1

8:45 am-9:40 pm

1 stop12h 55m

$451

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Mon 11/9

4:00 pm-1:15 pm

2 stops19h 15m

San José Juan Santamaria Intl

Sat 11/14

9:40 am-11:38 pm

1 stop15h 58m

$545

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 11/3

7:00 am-11:08 pm

1 stop15h 08m

San José Juan Santamaria Intl

Wed 11/4

1:43 am-1:40 pm

1 stop12h 57m

$550

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Thu 11/5

4:00 pm-11:25 am

2 stops17h 25m

San José Juan Santamaria Intl

Sun 11/22

9:40 am-11:38 pm

1 stop15h 58m

$555

HaileySan José

SUN - SJO

SUNSJO

Hailey Sun Valley-Friedman

Fri 10/23

8:15 am-7:15 am

1 stop23h 00m

San José Juan Santamaria Intl

Tue 11/3

2:20 pm-1:44 pm

2 stops24h 24m

$561

HaileySan José

SUN - SJO

SUNSJO

Hailey Sun Valley-Friedman

Sat 10/24

7:00 am-10:25 am

2 stops27h 25m

San José Juan Santamaria Intl

Thu 10/29

11:35 am-1:44 pm

2 stops26h 09m

$563

HaileySan José

SUN - SJO

SUNSJO

Hailey Sun Valley-Friedman

Fri 10/23

7:00 am-12:21 pm

2 stops29h 21m

San José Juan Santamaria Intl

Mon 11/2

12:35 pm-1:44 pm

2 stops26h 09m

$563

HaileySan José

SUN - SJO

SUNSJO

Hailey Sun Valley-Friedman

Sat 10/24

2:29 pm-10:25 am

2 stops19h 56m

San José Juan Santamaria Intl

Mon 11/2

8:45 am-1:44 pm

2 stops29h 59m

$563

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/14

Showing 1-10 of 59 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

How far ahead should I book a flight from Idaho to San José?

The price you pay for your flight from Idaho to San José may vary depending on when you book. For the best chance of a lower fare, look to book 52 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $141). Flying from Idaho to San José in June is currently the most expensive (average of $440). 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 Delta fly from Idaho to San José in about 12h 10m. The time it takes to get you to your destination can typically vary by up to 8h 23m. There are 3008 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 Spokane - San José Juan Santamaria Intl, Boise Air Term. Gowen Fld - San José Juan Santamaria Intl or Idaho Falls Fanning Field - 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 $141). Flying from Idaho to San José in June is currently the most expensive (average of $440). 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

Browse thousands of different options on Cheapflights for your next trip

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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 May 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$141Average$815FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$279Average$625FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$315Average$462FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$376Average$686FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$477Average$698FlexibilityNo cancel feeOn-time63%

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