$171 Find Cheap Flights from San José 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 José to Idaho departing on 2/10. 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$371
Idaho Falls
Idaho Falls2 stops$323
Spokane
Spokane1 stop$581
Boise
Boise1 stop$371
Idaho Falls
Idaho Falls2 stops$323
Spokane
Spokane1 stop$581

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, Jan 29 - Mon, Feb 2
United Airlines Logo
8:45 am - 9:56 am
SJO
-
IDA
26h 11m2 stops
United Airlines Logo
4:19 pm - 1:15 pm
IDA
-
SJO
43h 56m2 stops
$323United Airlines
Fri, Jan 23 - Fri, Feb 6
United Airlines Logo
2:05 pm - 1:30 pm
SJO
-
IDA
24h 25m2 stops
United Airlines Logo
2:40 pm - 12:56 pm
IDA
-
SJO
45h 16m2 stops
$354United Airlines
Thu, Jan 29 - Mon, Feb 2
United Airlines Logo
8:45 am - 9:56 am
SJO
-
IDA
26h 11m2 stops
United Airlines Logo
2:40 pm - 1:15 pm
IDA
-
SJO
21h 35m2 stops
$505United Airlines
Mon, Mar 16 - Mon, Mar 30
American Airlines Logo
2:20 pm - 1:48 pm
SJO
-
IDA
23h 28m1 stop
American Airlines Logo
2:18 pm - 1:55 pm
IDA
-
SJO
23h 37m1 stop
$507American Airlines
Mon, Mar 16 - Mon, Mar 30
American Airlines Logo
2:20 pm - 1:48 pm
SJO
-
IDA
23h 28m1 stop
American Airlines Logo
2:18 pm - 1:55 pm
IDA
-
SJO
23h 37m1 stop
$509American Airlines
Mon, Mar 16 - Mon, Mar 30
American Airlines Logo
11:35 pm - 1:48 pm
SJO
-
IDA
14h 13m1 stop
American Airlines Logo
2:18 pm - 9:25 am
IDA
-
SJO
19h 07m2 stops
$512American Airlines
Mon, Mar 16 - Mon, Mar 30
American Airlines Logo
11:35 pm - 1:48 pm
SJO
-
IDA
14h 13m1 stop
American Airlines Logo
2:18 pm - 9:25 am
IDA
-
SJO
19h 07m2 stops
$513American Airlines
Tue, Feb 3 - Sun, Feb 8
Alaska Airlines Logo
1:16 am - 4:19 pm
SJO
-
GEG
17h 03m1 stop
Alaska Airlines Logo
7:30 am - 11:59 pm
GEG
-
SJO
14h 29m2 stops
$581Alaska Airlines
Tue, Feb 3 - Sun, Feb 8
Alaska Airlines Logo
1:16 am - 4:19 pm
SJO
-
GEG
17h 03m1 stop
Alaska Airlines Logo
5:45 am - 11:59 pm
GEG
-
SJO
16h 14m2 stops
$609Alaska Airlines
Tue, Feb 3 - Sun, Feb 8
Alaska Airlines Logo
1:16 am - 4:19 pm
SJO
-
GEG
17h 03m1 stop
Alaska Airlines Logo
6:50 am - 11:59 pm
GEG
-
SJO
15h 09m1 stop
$615Alaska 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 July, when tickets cost $307 (return) on average. On the other hand, the most expensive months are January and February, when the average cost of round-trip tickets is $617 and $599 respectively.

Good to know

Low seasonJanuary
Cheapest flight$171
Best time to beat the crowds but there is an average 39% increase in price.
Most popular time to fly with an average 6% increase in price.
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 9138 reviews
7.1Entertainment
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
Airline reviews

On the way my flight entertainment wouldn’t work the screen went black and no matter how many times I tried to turn it on it wouldn’t. Food was surprisingly good but the tray tables were tiny so you couldn’t get anything else on the table. The seats hardly go back and are not overly comfortable. Wouldn’t fly United again.

4.0 OkayJaia, Jan 2026
AKL - SFO
Read more United Airlines reviews

On the way my flight entertainment wouldn’t work the screen went black and no matter how many times I tried to turn it on it wouldn’t. Food was surprisingly good but the tray tables were tiny so you couldn’t get anything else on the table. The seats hardly go back and are not overly comfortable. Wouldn’t fly United again.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

In Liberia airport 5 min before our departure the airport was closed for takeoff for 30 min. Upon arrival to IAH we didn’t have any available gate and waited taxing another 40 min. As a result we arrived for 1+ h later. The walkway to the passport control in IAH is about 1-2 ml long. After the passport control you have to pass the security check again. Only 3 out of 16 checkpoints were open and the line was enormously long. As a result, even though we supposed to have 2.5 hrs gap in between the flights we missed our transfer. United rebooked us for the next available flight early morning and provided free hotel and meal vouchers through.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

The staff was nice, however boarding taking 2 hours. That’s insane. Overall very bad experience, a lot of turbulence and when landed in Chicago was horrible. I don’t think I’ll flight with UA again.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

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

Information on your arrival and departure airports