$58 Find Cheap Flights from San Jose to Idaho

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Jose to Idaho departing on 1/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Jose to Idaho, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Jose to Idaho, as well as popular online travel agencies
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Flight Deals

Cheap Flights from San Jose to Idaho

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boisenonstop$137
Idaho Falls
Idaho Falls1 stop$248
Hailey
Hailey1 stop$240
Lewiston
Lewiston1 stop$366
Twin Falls
Twin Falls1 stop$532
Pocatello
Pocatello1 stop$447
Spokane
Spokane1 stop$205
Boise
Boisenonstop$137
Idaho Falls
Idaho Falls1 stop$248
Hailey
Hailey1 stop$240
Lewiston
Lewiston1 stop$366
Twin Falls
Twin Falls1 stop$532
Pocatello
Pocatello1 stop$447
Spokane
Spokane1 stop$205

Book Cheap San Jose to Idaho Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Jose to Idaho that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Jose to Idaho

Tue, Mar 3 - Wed, Mar 4
Hawaiian Airlines Logo
4:40 pm - 7:16 pmSJC-BOI
1h 36mnonstop
Hawaiian Airlines Logo
8:00 am - 8:58 amBOI-SJC
1h 58mnonstop
$137Hawaiian Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
Hawaiian Airlines Logo
4:40 pm - 7:16 pmSJC-BOI
1h 36mnonstop
Hawaiian Airlines Logo
7:00 am - 12:01 pmBOI-SJC
6h 01m1 stop
$147Hawaiian Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
Southwest Logo
9:45 am - 12:20 pmSJC-BOI
1h 35mnonstop
Southwest Logo
4:00 pm - 4:50 pmBOI-SJC
1h 50mnonstop
$157Southwest
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Mon, Dec 8 - Wed, Dec 10
Southwest Logo
9:45 am - 12:20 pmSJC-BOI
1h 35mnonstop
Southwest Logo
5:15 am - 2:15 pmBOI-SJC
10h 00m2 stops
$162Southwest
Find Deal
Mon, Nov 17 - Thu, Nov 20
Alaska Airlines Logo
4:48 pm - 10:20 pmSJC-BOI
4h 32m1 stop
Alaska Airlines Logo
9:59 am - 10:57 amBOI-SJC
1h 58mnonstop
$165Alaska Airlines
Find Deal
Tue, Jan 6 - Thu, Jan 8
Alaska Airlines Logo
5:57 pm - 11:37 pmSJC-BOI
4h 40m1 stop
Alaska Airlines Logo
9:02 am - 1:00 pmBOI-SJC
4h 58m1 stop
$166Alaska Airlines
Find Deal
Sun, Nov 16 - Tue, Nov 18
Delta Logo
7:05 am - 1:10 pmSJC-BOI
5h 05m1 stop
Delta Logo
12:50 pm - 6:24 pmBOI-SJC
6h 34m1 stop
$198Delta
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Wed, Dec 3 - Wed, Dec 17
Delta Logo
4:35 pm - 10:49 pmSJC-GEG
6h 14m1 stop
Delta Logo
6:05 am - 10:56 amGEG-SJC
4h 51m1 stop
$205Delta
Find Deal
Sun, Jan 25 - Wed, Jan 28
American Airlines Logo
6:00 am - 2:42 pmSJC-JAC
7h 42m1 stop
American Airlines Logo
2:06 pm - 9:29 pmJAC-SJC
8h 23m1 stop
$248American Airlines
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Sun, Nov 16 - Tue, Nov 18
American Airlines Logo
7:17 pm - 9:59 pmSJC-BOI
1h 42mnonstop
American Airlines Logo
9:59 am - 10:57 amBOI-SJC
1h 58mnonstop
$287American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for San Jose to Idaho flights

Get data-powered insights and trends into flights from San Jose to Idaho to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest San Jose to Idaho flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Idaho from San Jose found in the last 72 hours was to Boise, at $147 round-trip. The most popular route is from San Jose (SJC) to Boise (BOI), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $147.

Can I save money by flying with a layover from San Jose to Idaho?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $307, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from San Jose to Idaho?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Jose to Idaho, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Jose to Idaho is April, when tickets cost $217 (return) on average. On the other hand, the most expensive months are March and November, when the average cost of round-trip tickets is $343 and $307 respectively.

What’s the cheapest day of the week to fly from San Jose to Idaho?

The average price of all round-trip flights from San Jose to Idaho clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from San Jose to Idaho, look for departures on Saturdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Idaho, Thursday is the cheapest day to fly and Sunday is the most expensive.

How far in advance should I book a flight from San Jose to Idaho?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Jose to Idaho, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Jose to Idaho, you should book around 4 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$58
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from San Jose to Boise

FAQs - booking Idaho flights

  • How does KAYAK find such low prices on flights from San Jose to Idaho?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Jose to Idaho.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Jose to Idaho?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Jose to Idaho is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Jose to Idaho?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Jose to Idaho with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Jose to Idaho?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Jose to Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Idaho?

    The cheapest time of day to fly to Idaho is generally at night, when round-trip flights cost $157 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Idaho is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $318.

Reviews of the top 4 airlines serving from San Jose to Idaho

 
See real verified KAYAK customer reviews for airlines flying from San Jose to Idaho. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Jose to Idaho? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11201 reviews
7.1Food
8.1Boarding
7.0Entertainment
7.8Comfort
8.5Crew
Airline reviews

Check in online didn't accept my confirmation number so i could only check in with assistance at the airport and ended up with s creepy middle seat.

4.0 OkayMarco, Oct 2025SAN - ORD
Read more Alaska Airlines reviews

Check in online didn't accept my confirmation number so i could only check in with assistance at the airport and ended up with s creepy middle seat.

I was delayed several times. Missed a very important event. The airline only provided a $12 voucher after being delayed 3 times.

It was the most expensive Alaska Airlines ticket I’ve ever purchased. I had a middle seat with no legroom or space compared to any other middle seat I’ve hadThere was a silver box under the seat that took up 70% of my legroom on the most narrow 737 max the crew flat out would not help they would not help with bags they would not help with garbage there was no coffee,It was definitely not one of my better experiences on Alaska.

Sitting on the ground for 2 hours waiting for a gate wasn't fun.

One the nicest and great air crews I’ve experienced and I’ve flown a lot

Staff at Gate desk were helpful. My connecting flight from the first part of my trip Kona to Seattle was late. I had to run through SeaTac Seattle to catch my flight to San Jose. They made an exception to let me board. On my return trip San Jose to San Diego and San Diego to Honolulu the same thing happened. One flight arrived late and I had to run through the terminal to catch my connection. There are no Gluten-free & Vegan options meals and snacks to purchase.

Short flight was fine, but no entertainment and bathrooms broken.

My email notifications were silenced, so I didn't get word that the departing flight had changed gates. It wasn't until I noticed that few people had gathered for the flight that I checked the airport schedule board, 20 minutes before boarding. I then told several people at the old gate of the change. If I was to receive a text I would have been notified of the change earlier, Or to hear an announcement over the airport intercom.

delayed flight 3 hours, then took 45 min to get to gate and another 10 min to open door

They were friendly, efficient and got our bags to us so fast at the end of the flight.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

It was a perfect flight in all aspects! Both legs!

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Having to up charge for a seat assignment is not good. Delta can do better

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

I received several emails about my 3:10 flight. When I showed up to the airport at 12:30 to check my bags I was told the flight was actually at 1 pm. They grudgingly rebooked me for a flight at 5:22 to Vegas to get a connecting to LAX. I did find the gate for my original 3:10 flight but they were booked. I proceeded to receive status updates and gate change information for the 3:10 flight, even though I was apparently never supposed to be on that flight

The food options were limited and very specific. Some type of entertainment option for a 4.5 hour flight would have been nice.

The Kayak confirmation number did not work for checking in the day before. I checked in at 8.30 using my ticket number. When I arrived at the airport, I was informed that the flight was overbooked, and since I had checked in late, I did not have a seat. The Next flight was not until ten PM. I called my wife, who had been taking care of our kids all weekend, and she was upset, calling me a liar and telling me to stay in SD. It turned my weekend getaway into a nightmare! I blame the Kayak website and will not book flights using your app in the future.

comfortable but the food is horrible. I have flown Hawaiian several times now and no matter what they say the food is its the same squashed bread with melted goop inside. Tastes fake and isnt what they represent, its quite nasty. What happend to real food? And there is NO entertainment!! so not sure why they are asking for a review on that.

Good and friendly staff. Nicely enjoyed the complimentary drink and snack.

I was very, very cold and a stranger loaned me her sweater next to me. I didn’t wanna buy a blanket just for a four hour trip when I did not need the pillow or the earphones. I don’t mind purchasing a blanket, but I only needed that not all of it accessories. Cold air pretty much blew the entire trip. Two people in front of me both bought the blanket packages. Maybe that’s the idea. The crew was exceptionally nice and passed through multiple times.. the restrooms were very clean and usually accessible.

3 hour wait on customer service after flight was cancelled. Was bumped to a flight where I wouldnt have gotten to my destination for another 2 days. Had to fully refund flight and book a new one the following morning. Paid twice the amount for the flight than I had originally booked. Very disappointed I was not offered any sort of discount or points for all of the frustration, in fact the airline profited twice as much off of me by cancelling my flight and and changing my entire trip.

I understand that both Hawaiian and Alaskan are in the process of merging but I could not get real-time flight info or access my boarding pass on either app

Had a hard time checking into my flight on my phone because they gave me the wrong confirmation number. Otherwise everything else went well.

All was good and they were able to seat my travel companion next to me. Thank you.

Everything you need to know for your flight from San Jose to Idaho

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