$261 Find Cheap Flights from San José to Idaho - Compare and Save

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 José to Idaho departing on 8/22. 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 José 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 José to Idaho, as well as popular online travel agencies
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Cheap Flights from San José to Idaho

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boise1 stop$477
Idaho Falls
Idaho Falls2 stops$463
Spokane
Spokane2 stops$458
Boise
Boise1 stop$477
Idaho Falls
Idaho Falls2 stops$463
Spokane
Spokane2 stops$458

Book Cheap San José 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 José 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 José to Idaho

Thu, Sep 24 - Thu, Oct 8
Multiple Airlines Logo
5:45 am - 10:38 pm
SJO
-
GEG
17h 53m
2 stops
Multiple Airlines Logo
7:00 am - 11:15 pm
GEG
-
SJO
15h 15m
2 stops
$458Multiple Airlines
Sun, Aug 2 - Sun, Aug 16
United Airlines Logo
6:00 am - 10:27 am
SJO
-
GEG
29h 27m
2 stops
United Airlines Logo
5:00 am - 12:21 pm
GEG
-
SJO
30h 21m
2 stops
$463United Airlines
Sat, Jul 25 - Wed, Jul 29
United Airlines Logo
6:00 am - 9:50 am
SJO
-
IDA
27h 50m
2 stops
United Airlines Logo
4:14 pm - 10:11 am
IDA
-
SJO
17h 57m
2 stops
$463United Airlines
Wed, Oct 21 - Sat, Oct 24
United Airlines Logo
1:25 pm - 12:36 pm
SJO
-
GEG
24h 11m
2 stops
United Airlines Logo
4:08 pm - 10:25 am
GEG
-
SJO
17h 17m
2 stops
$477United Airlines
Mon, Aug 3 - Tue, Aug 18
American Airlines Logo
3:37 pm - 11:59 am
SJO
-
GEG
21h 22m
2 stops
American Airlines Logo
2:27 pm - 12:03 pm
GEG
-
SJO
20h 36m
2 stops
$485American Airlines
Thu, Sep 24 - Thu, Oct 8
American Airlines Logo
1:00 pm - 8:25 pm
SJO
-
GEG
32h 25m
1 stop
American Airlines Logo
12:45 pm - 11:05 am
GEG
-
SJO
21h 20m
2 stops
$487American Airlines
Thu, Oct 1 - Mon, Oct 5
United Airlines Logo
1:25 pm - 9:53 am
SJO
-
IDA
20h 28m
2 stops
United Airlines Logo
4:05 pm - 12:21 pm
IDA
-
SJO
20h 16m
2 stops
$496United Airlines
Thu, Oct 1 - Mon, Oct 5
United Airlines Logo
1:25 pm - 9:53 am
SJO
-
IDA
20h 28m
2 stops
United Airlines Logo
4:05 pm - 7:37 pm
IDA
-
SJO
27h 32m
2 stops
$509United Airlines
Thu, Sep 24 - Thu, Oct 8
Multiple Airlines Logo
12:40 pm - 1:22 pm
SJO
-
GEG
25h 42m
3 stops
Multiple Airlines Logo
7:00 am - 11:15 pm
GEG
-
SJO
15h 15m
2 stops
$525Multiple Airlines
Thu, Aug 13 - Thu, Aug 20
American Airlines Logo
6:00 am - 11:30 am
SJO
-
IDA
29h 30m
2 stops
American Airlines Logo
2:20 pm - 1:52 pm
IDA
-
SJO
23h 32m
1 stop
$758American Airlines
Booking Insights

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San José 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 José to Idaho is August, when tickets cost $274 (return) on average. On the other hand, the most expensive months are January and March, when the average cost of round-trip tickets is $706 and $458 respectively.

Good to know

Low seasonJanuary
Cheapest flight$261
Best time to beat the crowds but there is an average 41% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from San José to Spokane

FAQs - booking Idaho flights

  • How does KAYAK find such low prices on flights from San José 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 José to Idaho.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San José 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 José 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 José 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 José 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 José to Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from San José to Idaho

 
See real verified KAYAK customer reviews for airlines flying from San José 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 José 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.
7.4
United AirlinesOverall score based on 9804 reviews
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
Airline reviews

Crew was great! Good meals. Had room to stretch out

10.0 ExcellentKimberly, Jun 2026
MUC - SFO
Read more United Airlines reviews

Crew was great! Good meals. Had room to stretch out

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

Boarding was smooth and efficient. The only food was some pretzels, but it was a short flight. Not much to order if you were hungry.

Crew were welcoming, accommodating and they worked hard to find places for all carry on.

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

The flight was delayed, they didn’t even have water for the toilets or for drinks

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

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

Information on your arrival and departure airports