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$40+ Cheap flights from San Jose (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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — BOI
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap 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 September 15, 2025.

Round-trip from

$83
(Hawaiian Airlines)

One-way from

$40
(Kiwi.com)

Popular in

September

Cheapest in

April

Average price

$506

Good round-trip deal

$199 or less

Good one-way deal

$167 or less
From San Jose to Idaho
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One-way flight from San Jose to Idaho
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Highest demand for flights based on searches. 14% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from San Jose to Idaho.
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Price to beat on a one-way flight from San Jose to Idaho.
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Find 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 September 15, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 10/185:07 pmSJC - BOI
Nonstop1h 34mAlaska Airlines
Tue 10/2110:15 amBOI - SJC
Nonstop1h 57mAlaska Airlines
Deal found 9/13$98
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/185:07 pmSJC - BOI
Nonstop1h 34mHawaiian Airlines
Tue 10/2110:15 amBOI - SJC
Nonstop1h 57mHawaiian Airlines
Deal found 9/15$132
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:45 amSJC - BOI
Nonstop1h 35mSouthwest
Mon 11/172:30 pmBOI - SJC
Nonstop1h 50mSouthwest
Deal found 9/14$147
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/227:10 amSJC - BOI
2 stops7h 40mSouthwest
Tue 11/2511:40 amBOI - SJC
Nonstop1h 50mSouthwest
Deal found 9/13$152
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:35 amSJC - BOI
1 stop6h 30mSouthwest
Wed 12/33:45 pmBOI - SJC
1 stop5h 05mSouthwest
Deal found 9/14$156
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/187:15 amSJC - BOI
1 stop7h 51mDelta
Tue 10/217:40 amBOI - SJC
1 stop6h 22mDelta
Deal found 9/15$157
This Southwest deal was found by Cheapflights users on 9/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:30 amSJC - BOI
1 stop5h 45mSouthwest
Mon 11/32:40 pmBOI - SJC
1 stop8h 45mSouthwest
Deal found 9/12$158
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
Mon 10/2010:53 amSJC - GEG
1 stop11h 43mAlaska Airlines
Tue 10/215:11 amGEG - SJC
1 stop6h 01mAlaska Airlines
Deal found 9/13$172
This Delta deal was found by Cheapflights users on 9/13. 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.
Mon 10/204:37 pmSJC - GEG
1 stop7h 22mDelta
Tue 10/214:50 pmGEG - SJC
1 stop6h 50mDelta
Deal found 9/13$173
This Delta deal was found by Cheapflights users on 9/13. 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 10/307:15 amSJC - GEG
1 stop5h 20mDelta
Sun 11/25:05 amGEG - SJC
1 stop5h 46mDelta
Deal found 9/13$203
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/205:45 pmSJC - GEG
1 stop6h 35mSouthwest
Tue 10/2111:50 amGEG - SJC
2 stops7h 40mSouthwest
Deal found 9/13$238
This Hawaiian Airlines deal was found by Cheapflights users on 9/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:00 amSJC - GEG
1 stop3h 39mHawaiian Airlines
Wed 10/155:11 amGEG - SJC
1 stop6h 01mHawaiian Airlines
Deal found 9/14$242

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 September 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

Sat 10/18

5:07 pm-7:41 pm

Nonstop1h 34m

Boise Air Term. Gowen Fld

Tue 10/21

10:15 am-11:12 am

Nonstop1h 57m

$98

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Tue 3/3

10:05 am-4:20 pm

1 stop5h 15m

Boise Air Term. Gowen Fld

Wed 3/4

8:00 am-8:58 am

Nonstop1h 58m

$130

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Tue 3/3

11:35 am-8:13 pm

1 stop7h 38m

Boise Air Term. Gowen Fld

Wed 3/4

5:40 am-11:00 am

1 stop6h 20m

$137

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Wed 12/3

9:45 am-12:20 pm

Nonstop1h 35m

Boise Air Term. Gowen Fld

Wed 12/3

2:30 pm-3:20 pm

Nonstop1h 50m

$137

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Sat 10/18

5:07 pm-7:41 pm

Nonstop1h 34m

Boise Air Term. Gowen Fld

Tue 10/21

10:15 am-11:12 am

Nonstop1h 57m

$137

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Thu 10/30

2:39 pm-10:20 pm

1 stop6h 41m

Boise Air Term. Gowen Fld

Mon 11/3

9:59 am-10:57 am

Nonstop1h 58m

$145

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Fri 10/31

7:17 pm-9:59 pm

Nonstop1h 42m

Boise Air Term. Gowen Fld

Mon 11/3

9:59 am-10:57 am

Nonstop1h 58m

$145

San JoseSpokane

SJC - GEG

SJCGEG

San Jose

Mon 10/20

10:53 am-10:36 pm

1 stop11h 43m

Spokane

Tue 10/21

5:11 am-11:12 am

1 stop6h 01m

$172

San JoseSpokane

SJC - GEG

SJCGEG

San Jose

Tue 3/3

3:05 pm-8:59 pm

1 stop5h 54m

Spokane

Wed 3/4

12:44 pm-7:23 pm

1 stop6h 39m

$172

San JoseSpokane

SJC - GEG

SJCGEG

San Jose

Thu 10/30

7:15 am-12:35 pm

1 stop5h 20m

Spokane

Sun 11/2

5:05 am-10:51 am

1 stop5h 46m

$203

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

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 to Idaho?

Currently, October is the cheapest month in which you can book a flight from San Jose to Idaho (average of $314). Flying from San Jose to Idaho in June is currently the most expensive (average of $398). 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 September 15, 2025.

When flying from San Jose to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from San Jose 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 September 15, 2025.

The most flights from SJC to USID are scheduled on a Sunday (5 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 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 September 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
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Spirit Airlines
6.3
Okay
8,015 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 to Idaho flight route?

    Flights from San Jose to Idaho have been viewed 2 times in the past calendar month.

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

    Alaska Airlines, Hawaiian Airlines, and Delta can get you from San Jose to Idaho in just under 1h 34m. Your travel time can differ by up to 3h 46m. The distance between San Jose and Idaho is about 523 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $57. Hawaiian Airlines flights start at $69 while deals on Delta start at $69 one-way.

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

    The most popular flight routes from San Jose 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 to Idaho?

    Before booking your flight to Idaho from San Jose, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (97%), American Airlines (97%), Alaska Airlines( 97%).

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

    The cheapest flight price from San Jose to Idaho is $68. On average you can expect to pay $308. The most popular route, (San Jose - Boise Air Term. Gowen Fld), can usually be booked for $137.

  • 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 to Idaho?

    Currently, October is the cheapest month in which you can book a flight from San Jose to Idaho (average of $314). Flying from San Jose to Idaho in June is currently the most expensive (average of $398). 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 5 airlines flying from San Jose to Idaho

Discover the top 5 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$118Average$257FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$137Average$195FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$157Average$295FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$176Average$329FlexibilityNo cancel feeOn-time75%
DeltaCheapest$240Average$389FlexibilityNo cancel feeOn-timeN/A

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