$73 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 8/18. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Best Idaho Flight Deals from San Jose

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boisenonstop$157
Idaho Falls
Idaho Falls1 stop$247
Hailey
Hailey1 stop$246
Lewiston
Lewiston1 stop$476
Twin Falls
Twin Falls1 stop$466
Pocatello
Pocatello1 stop$427
Spokane
Spokane1 stop$176
Boise
Boisenonstop$157
Idaho Falls
Idaho Falls1 stop$247
Hailey
Hailey1 stop$246
Lewiston
Lewiston1 stop$476
Twin Falls
Twin Falls1 stop$466
Pocatello
Pocatello1 stop$427
Spokane
Spokane1 stop$176

Cheap Flights from San Jose to Idaho

 
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

Sat, Oct 18 - Tue, Oct 21
Hawaiian Airlines Logo
5:07 pm - 7:41 pmSJC-BOI
1h 34mnonstop
Hawaiian Airlines Logo
10:15 am - 11:12 amBOI-SJC
1h 57mnonstop
$157Hawaiian Airlines
Find Deal
Sat, Oct 4 - Fri, Oct 10
Hawaiian Airlines Logo
5:07 pm - 7:41 pmSJC-BOI
1h 34mnonstop
Hawaiian Airlines Logo
10:15 am - 11:12 amBOI-SJC
1h 57mnonstop
$167Hawaiian Airlines
Find Deal
Sat, Oct 18 - Tue, Oct 21
Delta Logo
5:45 am - 12:16 pmSJC-BOI
5h 31m1 stop
Delta Logo
5:40 am - 12:53 pmBOI-SJC
8h 13m1 stop
$177Delta
Find Deal
Thu, Sep 18 - Sun, Sep 21
Southwest Logo
3:50 pm - 12:05 amSJC-BOI
7h 15m2 stops
Southwest Logo
11:35 am - 12:25 pmBOI-SJC
1h 50mnonstop
$182Southwest
Find Deal
Wed, Aug 27 - Sun, Aug 31
Alaska Airlines Logo
9:00 am - 5:18 pmSJC-BOI
7h 18m1 stop
Alaska Airlines Logo
6:00 am - 8:53 amBOI-SJC
3h 53m1 stop
$186Alaska Airlines
Find Deal
Sat, Aug 2 - Wed, Aug 6
Southwest Logo
1:30 pm - 4:00 pmSJC-BOI
1h 30mnonstop
Southwest Logo
12:20 pm - 1:05 pmBOI-SJC
1h 45mnonstop
$187Southwest
Find Deal
Thu, Jul 17 - Mon, Jul 21
Spirit Airlines Logo
4:22 pm - 6:52 pmSJC-BOI
25h 30m1 stop
Spirit Airlines Logo
7:48 pm - 10:36 amBOI-SJC
15h 48m1 stop
$195Spirit Airlines
Find Deal
Fri, Aug 1 - Wed, Aug 6
Delta Logo
4:59 pm - 12:09 amSJC-BOI
6h 10m1 stop
Delta Logo
5:45 am - 8:55 amBOI-SJC
4h 10m1 stop
$212Delta
Find Deal
Wed, Aug 13 - Fri, Aug 22
Alaska Airlines Logo
5:03 pm - 7:44 pmSJC-BOI
1h 41mnonstop
Alaska Airlines Logo
10:08 am - 11:03 amBOI-SJC
1h 55mnonstop
$213Alaska Airlines
Find Deal
Thu, Jul 17 - Mon, Jul 21
Spirit Airlines Logo
11:31 am - 6:52 pmSJC-BOI
30h 21m2 stops
Spirit Airlines Logo
7:48 pm - 11:54 pmBOI-SJC
5h 06m1 stop
$216Spirit Airlines
Find Deal
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 $94 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 $94.

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 $415, 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 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 seasonOctober
Cheapest flight$73
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 1% increase in price.
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 $269 on average. Morning departures are around 2% more expensive 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 $323.

Reviews of the 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 10000 reviews
7.1Entertainment
7.1Food
7.8Comfort
8.5Crew
8.1Boarding
Airline reviews

The Alaska app and website were not fully operational. I had to spend about 15 minutes at the counter doing things that should have been completed online. The agent was very nice and helpful, however.

8.0 ExcellentAnonymous, Jun 2025OAK - SEA
Read more Alaska Airlines reviews

The Alaska app and website were not fully operational. I had to spend about 15 minutes at the counter doing things that should have been completed online. The agent was very nice and helpful, however.

Flying on Hawaiian Airlines was good. But, getting a boarding pass was a hassle. I booked what I thought was an Alaska Airlines flight that was actually a Hawaiian Airlines flight. I couldn't check in online. I had to wait for the Hawaiian Airlines counter to open so I could get my boarding pass which was a requirement for me to get in The Club or the Centurion Lounge. (I had no check in luggage so I didn't expect to have to physically check in.) The Alaska Airlines staff blamed the FAA for the problem.

Staff are helpful and patient. I don’t appreciate the almost 5 hours delay and also the delay of our luggage and being switched from one carousel to another to pick them up.

Staff were great but we were delayed on the tarmac for over an hour.

Great crew, smooth flight and landing. Wish they would offer Dr. Pepper and a choice of flavors of pretzels.

Thank you still providing bags for vomit. My son had a migraine and needed a bag to vomit in and it was right there behind the seat in front of us. Thank you!

We waited over an hour for our luggage to arrive at the carousel in Seattle.

The plane was delayed a bit. It wasn't a huge problem though, as we were heading back home.

Flight was great. Boarding was crazy because another flight was boarding late next to ours so everyone was standing and in the way.

Comfortable seat, a little delay, very informative. Love Wi-Fi

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.

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.

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.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

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

Both flights were late 2+ hours with ZERO communication from the airlines or their staff. No offers for compensation. WiFi didn’t work for streaming and they said to only use browsing but that didn’t work either. Waste of $$. No drinks only boxed water or apple juice. No snack. One of the worst flight experiences I’ve ever had.

Flight was canceled with no voucher of any kind and next available flight was two days later.

It was very pleasant. The staff and crew are very polite.

On time. Alaska upgraded seat comfort with memory foam seat covers with head rests

There were several delays and we were stressed about making our connection. The announcements for boarding were hard to hear or understand. The seating was uncomfortable for a 6 hour flight.

When I was not allowed by Alaska airlines to board due to time and difficulty pre-check the night before and kiosk did not work when I arrived at the airport and then finally told Alaska airlines is where I had to go. Not Hawaiian airlines that they had moved. That's when I was treated with the utmost disrespect by Alaska airlines agent that I was not allowed to board. And that might ticket to return was canceled and I hadn't even left yet when they gave me the option for the next flight to raise my flight price to $300 one way. I bought a $96 round trip ticket and they're trying to gouge me for $600 in addition and canceling my return flight.

Despite two calls as well as a chat on the website, Alaska would not add my TSA number to my reservation. The flight was switched from Hawaiian to Alaska which caused them to mess this up in the first place

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

Good experience except for the drunk woman who was with a child. Sad

Too many time late and postponed No electrical power for my electric devices

Spirit is by far the worst airline to travel with, period. Seats are cardboard, flight attendants need anger management and if you ask for water, you’re basically a criminal. I don’t care how much it costs but I will travel with an airline who actually cares about their customers. Oh and one more thing, the next time your gate agent puts his foot on someone’s baggage's scale, I hope they get what’s coming next, a viral video of your scams. You suck Spirit, do better.

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…

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.