HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho

$67+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — BOI
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Jose to Idaho with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 October 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:19 pmSJC - BOI
Nonstop1h 46mAlaska Airlines
Sat 12/139:59 amBOI - SJC
Nonstop2h 11mAlaska Airlines
Deal found 10/28$156
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 12/317:03 pmSJC - BOI
Nonstop1h 44mAlaska Airlines
Sun 1/47:17 amBOI - SJC
Nonstop2h 05mAlaska Airlines
Deal found 10/28$198
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:17 pmSJC - BOI
Nonstop1h 42mAlaska Airlines
Sat 11/227:09 amBOI - SJC
Nonstop2h 05mAlaska Airlines
Deal found 10/28$215
This Delta deal was found by Cheapflights users on 10/29. 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.
Tue 11/184:35 pmSJC - BOI
1 stop6h 32mDelta
Sun 11/235:20 amBOI - SJC
1 stop6h 36mDelta
Deal found 10/29$217
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/184:48 pmSJC - BOI
1 stop4h 32mAlaska Airlines
Sat 11/227:09 amBOI - SJC
Nonstop2h 05mAlaska Airlines
Deal found 10/28$225
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 11/186:14 pmSJC - BOI
1 stop4h 35mAlaska Airlines
Sun 11/237:09 amBOI - SJC
Nonstop2h 05mAlaska Airlines
Deal found 10/29$227
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares 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 12/311:00 pmBOI - SJC
1 stop4h 53mAlaska Airlines
Deal found 10/28$228
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 11/157:17 pmSJC - BOI
Nonstop1h 42mAlaska Airlines
Tue 11/189:59 amBOI - SJC
Nonstop1h 58mAlaska Airlines
Deal found 10/28$242
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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 12/33:49 pmSJC - GEG
1 stop5h 39mAlaska Airlines
Wed 12/177:15 amGEG - SJC
1 stop8h 39mAlaska Airlines
Deal found 10/30$244
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 12/86:25 pmSJC - GEG
1 stop14h 12mAlaska Airlines
Wed 12/106:00 amGEG - SJC
1 stop5h 10mAlaska Airlines
Deal found 10/29$260
This Delta deal was found by Cheapflights users on 10/29. 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 12/185:45 amSJC - GEG
1 stop6h 25mDelta
Wed 12/241:12 pmGEG - SJC
1 stop6h 44mDelta
Deal found 10/29$274
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 12/227:03 pmSJC - GEG
1 stop4h 03mAlaska Airlines
Thu 12/2511:36 amGEG - SJC
2 stops11h 23mAlaska Airlines
Deal found 10/29$285

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$137
(Hawaiian Airlines)

One-way from

$67
(Trip.com)

Popular in

March

Cheapest in

April

Average price

$273

Good round-trip deal

$177 or less

Good one-way deal

$78 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. 1% potential increase in price ($3 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 30, 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 3/3

4:40 pm-7:16 pm

Nonstop1h 36m

Boise Air Term. Gowen Fld

Wed 3/4

8:00 am-8:58 am

Nonstop1h 58m

$157

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Thu 2/5

7:22 pm-10:09 pm

Nonstop1h 47m

Boise Air Term. Gowen Fld

Mon 2/9

11:35 am-5:08 pm

1 stop6h 33m

$167

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Sun 1/18

11:40 am-2:20 pm

Nonstop1h 40m

Boise Air Term. Gowen Fld

Sat 1/24

6:00 am-9:55 am

1 stop4h 55m

$177

San JoseBoise

SJC - BOI

SJCBOI

San Jose

Thu 2/5

6:45 am-3:50 pm

2 stops8h 05m

Boise Air Term. Gowen Fld

Mon 2/9

3:20 pm-8:00 pm

1 stop5h 40m

$182

San JoseHailey

SJC - SUN

SJCSUN

San Jose

Mon 2/23

1:00 pm-10:45 am

1 stop20h 45m

Hailey Sun Valley-Friedman

Fri 2/27

11:25 am-4:44 pm

1 stop6h 19m

$240

San JoseSpokane

SJC - GEG

SJCGEG

San Jose

Wed 12/3

3:09 pm-12:24 am

2 stops9h 15m

Spokane

Wed 12/17

7:15 am-3:54 pm

1 stop8h 39m

$259

San JoseSpokane

SJC - GEG

SJCGEG

San Jose

Mon 12/8

6:25 pm-8:37 am

1 stop14h 12m

Spokane

Wed 12/10

6:00 am-11:10 am

1 stop5h 10m

$260

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Mon 1/26

3:36 pm-10:59 pm

1 stop6h 23m

Idaho Falls Fanning Field

Wed 1/28

6:58 pm-9:48 am

1 stop15h 50m

$260

San JoseSpokane

SJC - GEG

SJCGEG

San Jose

Sat 1/10

12:46 pm-12:23 am

2 stops11h 37m

Spokane

Sun 5/10

6:00 am-12:06 pm

1 stop6h 06m

$261

San JoseHailey

SJC - SUN

SJCSUN

San Jose

Mon 2/23

10:10 am-2:52 pm

1 stop3h 42m

Hailey Sun Valley-Friedman

Fri 2/27

1:35 pm-5:52 pm

1 stop5h 17m

$265

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 60 results
1
2
3
...
6

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 $172). 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 October 30, 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 68% on airfare.

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 October 30, 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
11,215 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

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
11,215 reviews
Alaska Airlines
8.0
Very good
11,215 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

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
11,215 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

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
7.9
Good
7,996 reviews
Alaska Airlines
8.0
Very good
11,215 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

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
2,797 reviews
Alaska Airlines
8.0
Very good
11,215 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

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, 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 36m. Fly via Hawaiian Airlines, Alaska Airlines, 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 $79 on Alaska Airlines. Other airlines that offer cheap prices include Southwest from $79 and Delta from $150 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 - Hailey Sun Valley-Friedman.

  • 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%), Southwest (97%), 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 $68. On average you can expect to pay $255. The most popular route, (San Jose - Boise Air Term. Gowen Fld), can usually be booked for $147.

  • 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 $172). 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.

Alternative routes for San Jose to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
San Francisco to John F Kennedy Intl flights
Los Angeles to Dallas/Fort Worth flights
Los Angeles to Newark flights
San Francisco to Los Angeles flights
San Francisco to Newark flights
Los Angeles to San Francisco flights
Los Angeles to Seattle flights
Los Angeles to Honolulu flights
Los Angeles to LaGuardia flights
San Francisco to Las Vegas flights
San Francisco to Ontario flights
San Francisco to Honolulu flights
San Francisco to Dallas/Fort Worth flights
San Francisco to Seattle flights
San Francisco to LaGuardia flights
Los Angeles to Miami flights
San Francisco to Santa Ana flights
Los Angeles to Las Vegas flights
Los Angeles to Orlando flights
Los Angeles to O'Hare Intl flights
Santa Ana to Seattle flights
Santa Ana to San Francisco flights
Los Angeles to Fort Lauderdale flights
Ontario to Dallas/Fort Worth flights
Ontario to Seattle flights
San Jose to Los Angeles flights
San Francisco to O'Hare Intl flights
Los Angeles to Boston flights
Burbank to Las Vegas flights
San Diego to John F Kennedy Intl flights
San Jose to Las Vegas flights
Ontario to San Francisco flights
Los Angeles to Sacramento flights
Los Angeles to Portland flights
Los Angeles to Reagan-National flights
Ontario to Las Vegas flights
Santa Ana to Las Vegas flights
Los Angeles to Sky Harbor Intl flights
Santa Ana to Dallas/Fort Worth flights
Los Angeles to Dulles Intl flights
San Francisco to Kahului flights
San Francisco to Miami flights
Los Angeles to Denver flights
Los Angeles to Atlanta flights
Los Angeles to Hobby flights
Ontario to John F Kennedy Intl flights
Los Angeles to San Jose flights
San Diego to Seattle flights
Sacramento to Los Angeles flights

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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$109Average$237FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$147Average$307FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$156Average$304FlexibilityNo cancel feeOn-time75%
DeltaCheapest$240Average$401FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Cookie settings©2025 Cheapflights