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Idaho

$235+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — BOI
Jun 12 — Jun 191
Fri 6/12
Fri 6/19
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 May 13, 2026.

This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:40 am
SJO
-
GEG
1 stop15h 58m
United Airlines
Sat 10/3112:30 pm
GEG
-
SJO
2 stops21h 55m
United Airlines
Deal found 5/12$424
This United Airlines deal was found by Cheapflights users on 5/10. 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.
Thu 5/148:45 am
SJO
-
GEG
1 stop13h 55m
United Airlines
Sat 5/164:03 pm
GEG
-
SJO
2 stops26h 34m
United Airlines
Deal found 5/10$495
This KAYAK deal was found by Cheapflights users on 5/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1212:50 pm
SJO
-
GEG
2 stops24h 09m
GOL
Sun 7/195:16 am
GEG
-
SJO
2 stops30h 55m
GOL
Deal found 5/10$537
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/131:29 pm
SJO
-
IDA
2 stops22h 01m
American Airlines
Thu 8/201:41 pm
IDA
-
SJO
2 stops24h 11m
American Airlines
Deal found 5/11$594
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:30 am
SJO
-
IDA
2 stops36h 55m
United Airlines
Sun 8/164:04 pm
IDA
-
SJO
2 stops20h 17m
United Airlines
Deal found 5/11$640
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/41:25 pm
SJO
-
IDA
2 stops48h 04m
United Airlines
Tue 9/154:10 pm
IDA
-
SJO
2 stops27h 27m
United Airlines
Deal found 5/11$694
This SmartFares deal was found by Cheapflights users on 5/10. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:31 am
SJO
-
GEG
3 stops33h 09m
Aeromexico
Wed 7/17:00 am
GEG
-
SJO
2 stops15h 43m
Aeromexico
Deal found 5/10$703
This Aeromexico deal was found by Cheapflights users on 5/10. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/127:30 am
SJO
-
GEG
3 stops41h 25m
Aeromexico
Sun 7/197:00 am
GEG
-
SJO
2 stops28h 10m
Aeromexico
Deal found 5/10$785
This United Airlines deal was found by Cheapflights users on 5/10. 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.
Tue 6/2312:30 am
SJO
-
GEG
2 stops15h 42m
United Airlines
Wed 7/16:00 am
GEG
-
SJO
1 stop24h 15m
United Airlines
Deal found 5/10$805
This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1211:41 pm
SJO
-
GEG
1 stop22h 04m
American Airlines
Sun 7/195:16 am
GEG
-
SJO
1 stop16h 22m
American Airlines
Deal found 5/10$873
This Alaska Airlines deal was found by Cheapflights users on 5/10. 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.
Tue 6/231:06 am
SJO
-
GEG
1 stop11h 05m
Alaska Airlines
Wed 7/111:51 am
GEG
-
SJO
1 stop10h 55m
Alaska Airlines
Deal found 5/10$978

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 May 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$424
(United Airlines)

One-way from

$235
(United Airlines)

Popular in

March

Cheapest in

July

Average price

$507
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. 24% potential increase in price ($160 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($36 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 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 May 13, 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
Quickest round-trip

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

Tue 10/27

1:20 pm-11:24 am

2 stops23h 04m

Spokane

Sat 10/31

1:45 pm-11:25 am

2 stops20h 40m

$424

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Thu 8/13

6:00 am-11:30 am

2 stops29h 30m

Idaho Falls Fanning Field

Thu 8/20

1:41 pm-12:26 pm

2 stops22h 45m

$596

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Thu 8/6

12:30 am-1:25 pm

2 stops36h 55m

Idaho Falls Fanning Field

Sun 8/16

4:04 pm-12:21 pm

2 stops20h 17m

$640

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Fri 9/4

1:25 pm-1:29 pm

2 stops48h 04m

Idaho Falls Fanning Field

Tue 9/15

4:10 pm-7:37 pm

2 stops27h 27m

$694

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

Sun 7/12

11:41 pm-8:45 pm

1 stop22h 04m

Spokane

Sun 7/19

5:16 am-1:11 pm

2 stops30h 55m

$700

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

Sun 7/12

7:30 am-11:55 pm

3 stops41h 25m

Spokane

Sun 7/19

7:00 am-12:10 pm

2 stops28h 10m

$785
Cheapest one-way
Quickest one-way

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

Sat 6/6

6:40 am-3:12 pm

1 stop9h 32m

$240

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Tue 10/13

7:55 am-3:23 pm

2 stops31h 28m

$241

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Wed 10/14

1:25 pm-9:53 am

2 stops20h 28m

$244

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Mon 10/12

1:25 pm-9:53 am

2 stops20h 28m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $274). 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 May 13, 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
9,706 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,706 reviews
United Airlines
7.4
Good
9,706 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 and American Airlines fly from San José to Idaho in about 23h 04m. The time it takes to get you to your destination can typically vary by up to 6h 26m. Airlines will cover a distance of 3240 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $274). 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

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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 May 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$301Average$448FlexibilityNo cancel feeOn-time69%

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