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Idaho

$234+ Cheap flights from San José (SJO) to Idaho

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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — BOI
Apr 18 — Apr 251
Sat 4/18
Sat 4/25
1 adult, Economy
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Cheap flight deals from San José to Idaho

Cheapest flights from San José to Idaho
Explore the most affordable flight options available from San José to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 19, 2026.

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.
Wed 4/227:55 am
SJO
-
GEG
2 stops28h 48m
United Airlines
Sat 4/251:46 pm
GEG
-
SJO
2 stops19h 25m
United Airlines
Deal found 3/18$403
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.
Tue 10/277:45 am
SJO
-
IDA
2 stops15h 08m
United Airlines
Sat 10/315:57 pm
IDA
-
SJO
2 stops17h 28m
United Airlines
Deal found 3/18$403
This American Airlines deal was found by Cheapflights users on 3/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/142:15 pm
SJO
-
GEG
2 stops22h 43m
American Airlines
Sun 8/303:10 pm
GEG
-
SJO
2 stops19h 40m
American Airlines
Deal found 3/15$410
This United Airlines deal was found by Cheapflights users on 3/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/212:30 am
SJO
-
GEG
2 stops15h 42m
United Airlines
Wed 6/104:08 pm
GEG
-
SJO
2 stops17h 03m
United Airlines
Deal found 3/15$411
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.
Thu 4/2311:13 am
SJO
-
IDA
2 stops22h 40m
United Airlines
Sat 4/255:45 pm
IDA
-
SJO
2 stops25h 52m
United Airlines
Deal found 3/16$411
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 8/242:15 pm
SJO
-
GEG
2 stops22h 43m
American Airlines
Thu 9/33:10 pm
GEG
-
SJO
2 stops21h 48m
American Airlines
Deal found 3/16$436
This American Airlines deal was found by Cheapflights users on 3/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:57 pm
SJO
-
GEG
1 stop24h 01m
American Airlines
Fri 10/2312:45 pm
GEG
-
SJO
2 stops21h 20m
American Airlines
Deal found 3/15$442
This Alaska Airlines deal was found by Cheapflights users on 3/15. 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.
Thu 6/412:53 am
SJO
-
GEG
1 stop15h 36m
Alaska Airlines
Tue 6/96:00 am
GEG
-
SJO
2 stops16h 33m
Alaska Airlines
Deal found 3/15$445
This United Airlines deal was found by Cheapflights users on 3/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:45 am
SJO
-
GEG
1 stop11h 04m
United Airlines
Tue 7/146:00 am
GEG
-
SJO
1 stop24h 15m
United Airlines
Deal found 3/14$453
This United Airlines deal was found by Cheapflights users on 3/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:13 am
SJO
-
IDA
2 stops22h 40m
United Airlines
Wed 4/295:20 pm
IDA
-
SJO
2 stops19h 01m
United Airlines
Deal found 3/15$453
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.
Thu 6/47:55 am
SJO
-
GEG
2 stops16h 56m
United Airlines
Wed 6/1012:37 pm
GEG
-
SJO
2 stops20h 34m
United Airlines
Deal found 3/16$466
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:30 am
SJO
-
IDA
2 stops32h 00m
United Airlines
Wed 3/252:35 pm
IDA
-
SJO
2 stops21h 40m
United Airlines
Deal found 3/17$527

Find flight deals from San José to Idaho

Keep the following information in mind while searching for San José to Idaho flight deals. Data was last updated March 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$410
(American Airlines)

One-way from

$234
(Expedia)

Popular in

January

Cheapest in

July

Average price

$629
Provider with most accurate pricing for San José Juan Santamaria Intl-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for San José Juan Santamaria Intl-Boise Air Term. Gowen Fld flights.
Search Deals
From San José Juan Santamaria Intl to Idaho
Search Deals
One-way flight from San José Juan Santamaria Intl to Idaho
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($23 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 San José to Idaho 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 19, 2026.
Use the filters below to find and compare flights from San José to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

Wed 4/22

7:55 am-11:43 am

2 stops28h 48m

Spokane

Sat 4/25

12:35 pm-7:15 am

1 stop17h 40m

$403

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Thu 4/23

11:13 am-9:53 am

2 stops22h 40m

Idaho Falls Fanning Field

Wed 4/29

5:20 pm-7:37 pm

2 stops26h 17m

$411

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Thu 4/23

11:13 am-9:53 am

2 stops22h 40m

Idaho Falls Fanning Field

Sat 4/25

5:45 pm-7:37 pm

2 stops25h 52m

$411

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

Mon 8/24

2:15 pm-11:58 am

2 stops22h 43m

Spokane

Thu 9/3

3:10 pm-1:58 pm

2 stops21h 48m

$436

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

Sat 7/4

7:55 am-8:30 pm

2 stops13h 35m

Spokane

Tue 7/14

6:00 am-7:15 am

1 stop24h 15m

$495
Quickest round-trip

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Fri 5/29

11:59 pm-10:15 pm

1 stop22h 16m

Idaho Falls Fanning Field

Wed 6/10

2:08 pm-10:42 pm

1 stop8h 34m

$700

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Wed 4/22

12:55 am-10:40 pm

2 stops45h 45m

Idaho Falls Fanning Field

Wed 4/29

6:00 am-11:45 pm

2 stops17h 45m

$701

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Thu 4/23

11:35 pm-1:13 pm

1 stop13h 38m

Idaho Falls Fanning Field

Sat 4/25

1:43 pm-1:08 pm

2 stops23h 25m

$817

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Sun 7/12

12:58 pm-1:24 pm

2 stops24h 26m

Idaho Falls Fanning Field

Sun 7/19

12:29 pm-1:00 pm

2 stops24h 31m

$946
Cheapest one-way

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

Fri 5/15

12:53 am-9:18 pm

2 stops21h 25m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

Showing 1-10 of 26 resultsSorted by cheapest first
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3

Best time to book a flight from San José to Idaho

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

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

Currently, August is the cheapest month in which you can book a flight from San José to Idaho (average of $279). Flying from San José to Idaho in January is currently the most expensive (average of $706). 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.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated March 19, 2026.
Read reviews from past customers who have flown United Airlines from San José to Idaho. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,439 reviews

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,439 reviews
United Airlines
7.4
Good
9,439 reviews

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

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

    Most people fly from San José Juan Santamaria Intl (SJO) if they book a flight from San José to Idaho. San José Juan Santamaria Intl is conveniently located just 8.8 mi from San José’s city center.

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

    Airlines like United Airlines fly from San José to Idaho in about 28h 48m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 3240 mi.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from San José to Idaho (average of $279). Flying from San José to Idaho in January is currently the most expensive (average of $706). 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.

Top airline flying from San José to Idaho

Discover the top airline that operate flights from San José to Idaho. 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 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$300Average$396FlexibilityNo cancel feeOn-time69%

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