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$73+ Cheap flights from San Jose, CA (SJC) 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — BOI
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from San Jose to Idaho

Cheapest flights from San Jose to Idaho
Explore the most affordable flight options available from San Jose to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/214:47 pmSJC - IDA
1 stop5h 05mDelta
Fri 1/91:15 pmIDA - SJC
1 stop3h 59mDelta
Deal found 12/14$330
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:50 amSJC - BOI
1 stop6h 49mDelta
Sun 1/185:40 amBOI - SJC
1 stop6h 17mDelta
Deal found 12/14$347
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/224:47 pmSJC - IDA
1 stop5h 05mDelta
Fri 1/96:35 pmIDA - SJC
2 stops17h 22mDelta
Deal found 12/14$362
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/181:35 pmSJC - JAC
1 stop6h 54mDelta
Wed 12/2412:50 pmJAC - SJC
2 stops10h 46mDelta
Deal found 12/13$373
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/214:47 pmSJC - IDA
1 stop5h 05mDelta
Thu 1/86:35 pmIDA - SJC
2 stops17h 22mDelta
Deal found 12/14$377
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/264:47 pmSJC - IDA
1 stop5h 05mDelta
Thu 1/86:35 pmIDA - SJC
1 stop5h 20mDelta
Deal found 12/14$380
This Kiwi.com deal was found by Cheapflights users on 12/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:27 pmSJC - IDA
1 stop23h 45mMultiple Airlines
Fri 1/99:20 pmIDA - SJC
2 stops38h 12mMultiple Airlines
Deal found 12/14$387
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/182:29 pmSJC - JAC
1 stop5h 23mUnited Airlines
Wed 12/242:30 pmJAC - SJC
1 stop7h 46mUnited Airlines
Deal found 12/13$399
This Alaska Airlines deal was found by Cheapflights users on 12/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:30 pmSJC - BOI
1 stop4h 27mAlaska Airlines
Sun 1/188:10 amBOI - SJC
Nonstop2h 06mAlaska Airlines
Deal found 12/14$402
This Kiwi.com deal was found by Cheapflights users on 12/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:03 pmSJC - BOI
Nonstop1h 44mAlaska Airlines
Fri 1/27:17 amBOI - SJC
Nonstop2h 05mAlaska Airlines
Deal found 12/14$411
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/264:47 pmSJC - IDA
1 stop5h 05mDelta
Fri 1/96:35 pmIDA - SJC
2 stops17h 22mDelta
Deal found 12/14$412
This Alaska Airlines deal was found by Cheapflights users on 12/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:03 pmSJC - BOI
Nonstop1h 44mAlaska Airlines
Wed 12/317:17 amBOI - SJC
Nonstop2h 05mAlaska Airlines
Deal found 12/14$417

Find flight deals from San Jose to Idaho

Keep the following information in mind while searching for San Jose to Idaho flight deals. Data was last updated December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$147
(Alaska Airlines)

One-way from

$73
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$352

Good round-trip deal

$197 or less

Good one-way deal

$108 or less
Provider with most accurate pricing for San Jose-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Jose-Boise Air Term. Gowen Fld flights.
Search Deals
From San Jose to Idaho
Search Deals
One-way flight from San Jose to Idaho
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from San Jose to Idaho.
Search Deals
Price to beat on a one-way flight from San Jose to Idaho.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Jose 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 December 15, 2025.
Use the filters below to find and compare flights from San Jose to Idaho that are best for you.

Fly from

San Jose

Fly to

Idaho

Route

Depart

Return

Price

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Tue 1/6

7:03 pm-9:47 pm

Nonstop1h 44m

Boise Air Term. Gowen Fld

Tue 1/13

8:10 am-9:16 am

Nonstop2h 06m

$147

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Wed 1/7

11:40 am-2:20 pm

Nonstop1h 40m

Boise Air Term. Gowen Fld

Thu 1/8

4:00 pm-4:50 pm

Nonstop1h 50m

$157

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Sat 2/7

7:22 pm-10:09 pm

Nonstop1h 47m

Boise Air Term. Gowen Fld

Wed 2/11

8:10 am-9:16 am

Nonstop2h 06m

$157

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Wed 1/28

7:22 pm-10:09 pm

Nonstop1h 47m

Boise Air Term. Gowen Fld

Fri 1/30

8:10 am-9:16 am

Nonstop2h 06m

$157

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Mon 1/5

7:03 pm-9:47 pm

Nonstop1h 44m

Boise Air Term. Gowen Fld

Fri 1/9

8:10 am-9:16 am

Nonstop2h 06m

$167

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Sat 1/31

3:36 pm-9:05 pm

1 stop4h 29m

Boise Air Term. Gowen Fld

Tue 2/3

8:10 am-9:16 am

Nonstop2h 06m

$167

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Sat 1/10

6:15 am-12:51 pm

1 stop5h 36m

Boise Air Term. Gowen Fld

Wed 1/14

8:10 am-9:16 am

Nonstop2h 06m

$167

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Sat 1/10

7:40 am-3:15 pm

1 stop6h 35m

Boise Air Term. Gowen Fld

Wed 1/14

3:35 pm-9:15 pm

1 stop6h 40m

$176

San JoseSpokane

SJC - GEG

SJCGEG

San Jose

Wed 2/11

6:25 pm-11:59 pm

1 stop5h 34m

Spokane

Sun 2/15

6:05 am-10:55 am

1 stop4h 50m

$205

San JoseSpokane

SJC - GEG

SJCGEG

San Jose

Wed 1/7

6:25 pm-10:52 pm

1 stop4h 27m

Spokane

Sat 1/10

9:20 am-1:39 pm

1 stop4h 19m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 60 results
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Best time to book a flight from San Jose to Idaho

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

What is the cheapest month to book a flight from San Jose, California to Idaho?

Currently, August is the cheapest month in which you can book a flight from San Jose, California to Idaho (average of $78). Flying from San Jose, California to Idaho in December is currently the most expensive (average of $155). 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 SJC to ID?

Find hourly flight availability from San Jose to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

One of the essential ways to save on airfare from San Jose, California to Idaho is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 40% on airfare.

What is the cheapest day to fly from San Jose, California to Idaho?

Use this chart to determine the cheapest time to fly round-trip from San Jose to Idaho. Price data was last updated on December 13, 2025.

Travelers seeking maximum savings on their San Jose, California to Idaho flight should consider departing on Wednesday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Jose, California to Idaho

Explore weekly flight availability from San Jose to Idaho. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 15, 2025.

The most flights from SJC to USID are scheduled on a Friday (4 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

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 December 15, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from San Jose to Idaho have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,457 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,457 reviews
Alaska Airlines
8.0
Very good
11,457 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
7.9
Good
4,250 reviews
Alaska Airlines
8.0
Very good
11,457 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,010 reviews
Alaska Airlines
8.0
Very good
11,457 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Hawaiian Airlines
7.8
Good
2,819 reviews
Alaska Airlines
8.0
Very good
11,457 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Related info for your journey

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

    Most people fly from San Jose (SJC) if they book a flight from San Jose to Idaho. San Jose is conveniently located just 2.9 mi from San Jose’s city center.

  • How popular is this San Jose, California to Idaho flight route?

    The San Jose to Idaho flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from San Jose, California to Idaho?

    There are many flights that can get you from San Jose, California to Idaho in 1h 40m. Fly via Alaska Airlines, Southwest, or Delta to get the fastest option. San Jose, California and Idaho are separated by a distance of 523 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from San Jose, California to Idaho one-way?

    One-way options have recently been found by users for as low as $68 on Alaska Airlines. Other airlines that offer cheap prices include Southwest from $68 and Delta from $88 one-way.

  • What are the most popular routes from San Jose, California to Idaho?

    The most popular flight routes from San Jose, California to Idaho are San Jose - Boise Air Term. Gowen Fld, San Jose - Spokane and San Jose - Jackson Hole.

  • What are the most reliable airlines from San Jose, California to Idaho?

    Before booking your flight to Idaho from San Jose, California, check out the most reliable airlines to get you to your destination on time: Horizon Air (100%), American Airlines (94%), Alaska Airlines( 94%).

  • What are the cheapest flights from San Jose, California to Idaho?

    The cheapest flight price from San Jose, California to Idaho is $77. On average you can expect to pay $245. The most popular route, (San Jose - Boise Air Term. Gowen Fld), can usually be booked for $157.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Jose 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 Jose, California to Idaho?

    Currently, August is the cheapest month in which you can book a flight from San Jose, California to Idaho (average of $78). Flying from San Jose, California to Idaho in December is currently the most expensive (average of $155). 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.

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Top 4 airlines flying from San Jose to Idaho

Discover the top 4 airlines that operate flights from San Jose 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$109Average$237FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$147Average$310FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$150Average$307FlexibilityNo cancel feeOn-time75%
DeltaCheapest$174Average$356FlexibilityNo cancel feeOn-timeN/A

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