$54 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 9/12. 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.
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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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Best Idaho Flight Deals from San Jose

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Boise
Boisenonstop$137
Idaho Falls
Idaho Falls1 stop$244
Hailey
Hailey1 stop$245
Lewiston
Lewiston1 stop$481
Twin Falls
Twin Falls1 stop$416
Pocatello
Pocatello1 stop$599
Spokane
Spokane2 stops$171
Boise
Boisenonstop$137
Idaho Falls
Idaho Falls1 stop$244
Hailey
Hailey1 stop$245
Lewiston
Lewiston1 stop$481
Twin Falls
Twin Falls1 stop$416
Pocatello
Pocatello1 stop$599
Spokane
Spokane2 stops$171

Cheap Flight Deals from San Jose to Idaho (SJC-USID)

 
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.

Recent round-trip flight deals from San Jose to Idaho

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from San Jose to Idaho.
Discover the best prices for you by selecting your travel dates on KAYAK.
Alaska Airlines Logo
6:10 pm - 8:50 pmSJC-BOI
1h 40mnonstop
Alaska Airlines Logo
8:50 am - 9:39 amBOI-SJC
1h 49mnonstop
$137Alaska Airlines
Find Deal
Wed, May 21 - Sat, May 31
Hawaiian Airlines Logo
6:10 pm - 8:50 pmSJC-BOI
1h 40mnonstop
Hawaiian Airlines Logo
5:39 pm - 10:38 pmBOI-SJC
5h 59m1 stop
$147Hawaiian Airlines
Find Deal
Wed, May 21 - Wed, May 28
Southwest Logo
9:30 am - 5:40 pmSJC-BOI
7h 10m2 stops
Southwest Logo
5:25 pm - 6:10 pmBOI-SJC
1h 45mnonstop
$152Southwest
Find Deal
Wed, May 21 - Wed, May 28
Delta Logo
4:00 pm - 11:28 pmSJC-BOI
6h 28m1 stop
Delta Logo
5:40 pm - 10:20 pmBOI-SJC
5h 40m1 stop
$157Delta
Find Deal
Sat, May 24 - Sat, May 31
Delta Logo
4:59 pm - 12:14 amSJC-BOI
6h 15m1 stop
Delta Logo
8:35 am - 12:47 pmBOI-SJC
5h 12m1 stop
$159Delta
Find Deal
Wed, Jun 18 - Tue, Jun 24
Spirit Airlines Logo
6:00 am - 11:21 amSJC-BOI
4h 21m1 stop
Spirit Airlines Logo
12:16 pm - 11:29 pmBOI-SJC
12h 13m1 stop
$171Spirit Airlines
Find Deal
Fri, Jun 6 - Mon, Jun 9
 Logo
4:33 pm - 5:07 pmSJC-GEG
24h 34m2 stops
 Logo
5:57 pm - 3:33 pmGEG-SJC
21h 36m2 stops
Thu, Jun 5 - Mon, Jun 9
Spirit Airlines Logo
6:00 am - 11:21 amSJC-BOI
4h 21m1 stop
Spirit Airlines Logo
12:16 pm - 11:29 pmBOI-SJC
12h 13m1 stop
$183Spirit Airlines
Find Deal
Fri, May 23 - Mon, Jun 2
 Logo
6:00 am - 5:13 pmSJC-GEG
11h 13m2 stops
 Logo
6:03 pm - 11:29 pmGEG-SJC
29h 26m2 stops
Fri, May 23 - Mon, May 26
Southwest Logo
11:50 am - 2:25 pmSJC-BOI
1h 35mnonstop
Southwest Logo
6:15 am - 11:30 amBOI-SJC
6h 15m1 stop
$236Southwest
Find Deal
Tue, May 20 - Sun, May 25
Useful Info

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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from San Jose to Idaho.

The cheapest ticket to Idaho from San Jose found in the last 72 hours was to Boise, at $157 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 $157.

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 September and November, when the average cost of round-trip tickets is $446 and $360 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 Wednesdays 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. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.


Good to know

Low seasonJanuary
High seasonMarch
Cheapest flight$54
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from San Jose to Jackson

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 $269 on average. Morning departures are around 1% cheaper than evening flights, on average. 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 $340.

Top 5 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 9968 reviews
7.9Comfort
8.2Boarding
7.1Entertainment
7.1Food
8.5Crew
Airline reviews

My youngest didn't have a assigned seat until we biard6the plane.

2.0 MediocreStephanie, Apr 2025SAN - SLC
Read more Alaska Airlines reviews

My youngest didn't have a assigned seat until we biard6the plane.

I got the last seat on the plane, in the back in the corner against the window, and I paid a competitive price for my ticket several weeks before the flight.

Long delay before boarding. By the time I was informed of the delay I was already at the gate.

There was no seating at the gate, no where to charge your devices, super crowded. Boarding in group F meant all luggage space was taken when it was time for me to board. The boarding crew was short with everyone and seemed irritated. The luggage space was insufficient, the seat was too small for me (6'4") and very uncomfortable trip. I was in a middle seat between a person snoring the whole trip and a person with very strong body odor. The flight crew was terse and unfriendly, seemed irritated and impatient. Yelled a lot at people with earbuds in, understandable. Finally, we arrived 10 minutes early, only to sit on the tarmac for 20 minutes and wait for a gate. Worst flight experience I've had in years.

I made a mistake. Read what I wrote in the flight from Dulles to SEA. The negative experience was from SEA to BOI. Total garbage. Wont do it again.

Check your emails that you sent me. 9 emails were sent telling me that my flight is Delayed. Each one with a different time 7:10, 7:55, 9:31, 9:09, 9:29, 9:44, 10:00, 9:49, and 10:10. That was how my experience went.

It was my first time flying Alaska Airlines and first time flying from Santa Rosa airport. The staff was very professional and friendly. Their instructions were clear and any question was answered satisfactorily. My seat was comfortable and the in-flight beverage service very adequate for the duration of the flight. We arrived ahead of the scheduled landing time and deplaning was simple. I look forward to flying with Alaska again.

Personal demeanor not good on flight returning to LAX..Great and superb on the way to Portland

No non-alcoholic drinks available except water and small apple juice cans.

Flight attendant took my carefully folded coat and flung it across the aisle to the bin across the way. Where one of the passengers rescued it for me, because that just wasn’t right!!

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

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

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a hell hole of an airport. It is the new LaGuardia. Everything Cobbled together. Security gates closed. Terri directional signage

Delta flight was on time, seats were comfortable, and crew was nice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

My seat was changed at the last minute and I was moved to the last row, right next to the bathroom despite selecting my seat well in advance. I was also made to check my carry on due to space but when I got on the plane there was significant empty overhead space. Picking up my carry on from the luggage carousel added time to my trip which had already been extended due to delay.

The departure gate was changed from C1 to B18 but it was never announced at the C1 gate nor did I receive any email or text message or phone call about the gate change. I was in a window seat. In the other two seats next to me were Mr. Rotund and Ms. Rotunda, a youngish couple. Just the two of them should have booked three seats. I was smashed up against the wall and window for five hours. Overall, I'd say my flight sucked. Wouldn't you?

I couldn't get checked in 24 hours before either leg of my flight. I tried both my Alaska and Hawaiian codes on both apps.

We moved from the international terminal to a new location. I think there are still some bugs to work out . We didn’t receive check in notification and had to scramble to find it but i think it will work out

Not so good. The takeoff was aborted after reaching 100 knots due to a problem with the front tires. I do commend the pilot for a quick decision and preventing a potential disaster. We returned to the gate to put fresh tires on the front. Our flight was delayed for over 3 hours. The rest of the flight was okay. We were reimbursed by Hawaiian Airlines for only $50. Not too generous

Arrived at the gate with no seats assigned. Was told by gate agent the flight was full and we would not be on it. I asked the gate agent how could I be sold tickets when the flight was full. She replied, “Thats just how they do it.” I was able to get seats once I arrived at the gate. The flight itself was great. I’ll never purchase tickets without seat assignments from kayak or anyone again. Shame on kayak or Hawaiian airlines or all of you.

The pre-flight check in process was bad. The app didn't allow check-in online and forced me to check in at the airport. Alaska didn't have self-service kiosks for check in (only bag tagging stations), so I had to wait in line with people who were checking bags just to get my boarding pass.

The flight is supposed to be Hawaiian, but it's operated by Alaska. As such, I could not find my reservation on Hawaiian nor Alaska website. I could not check in on line. At the airports, even the kiosk could not find my reservation. I needed to wait in a long line to check in even though I have no bag to check. Good thing I got to the airport early enough.

The temperature on the plane was too cold and the food was not very good. Everything else was good.

Every customer service agent we came in contact with was rude, tired, overworked and indifferent

Staff was great. Heard negative things about this airline but my experience was great

I mean, it’s Spirit. But it was frustrating to have our flight canceled, get bumped to a later flight, and then Spirit was unwilling to check our bag until 4 hours before our flight… tell us we could not sit in the waiting area’s chairs… and really negative experience getting checked in and dropping the bag.

terrible service, no room for a dog underfoot, a broken chair that is impossible to sit on and all this costs a lot of money

It was fast but uncomfortable seats. Had to pay a bit extra not sure why? Maybe in selection of all my 4 tix together ? Just knew I had a balance before getting boarding pass online when departing from satx ? And flight was delayed..

Last minute 2-3 hr delay in flight schedule; no explanation Unexpected extra $52 charge What's the benefit of choosing a cheap airline if you trick people last minute and force them to pay extra last minute? Did not appreciate being cornered.

Seats are uncomfortable and too close together. Also, you missed my connection in Vegas on the way back and I ended up sleeping in the airport, flying back to Burbank instead of LAX and I got home 12 hours late.

Surprising everything went well. Nice attendants and fast getting on and off the plane. Overall, was happy with the experience.

Non-professional acting crew, Very uncomfortable seats…!! Very bad pricing with all the add-ons for seat choice, luggage fees, etc….soon you’ll charge extra for oxygen. The ticket price means Nothing because in the end, the actual amount i paid, i could have and will in the future continue to fly on a real airline…

With this price, I shouldn't complain on anything. I understand I have to pay for every services they provide. The plane could smell a little better. Advise them to use frebeeze to freshen up the interior a little bit.

Terrible. 1st and last flight on Spirit. Check in process was a nightmare. Despite arriving 1.6 hours before flight we had to be pulled from the ridiculously long line to “self check” our bags which took 10 min and required assistance. Seats are very uncomfortable , don’t move, no pockets, no entertainment, no wifi Basically like taking a time capsule back to the 70s. No thank you.

They kept delaying us and not providing any information which cost us hundreds of dollars . We had an event to get to and missed our even that we had paid for along with lots of wasted time and money booking nee flights.

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