$188 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 3/12. 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.
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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Flight Deals

Cheap Flights from San José to Idaho

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boise2 stops$390
Idaho Falls
Idaho Falls2 stops$416
Spokane
Spokane2 stops$470
Boise
Boise2 stops$390
Idaho Falls
Idaho Falls2 stops$416
Spokane
Spokane2 stops$470

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

Fri, Jan 30 - Thu, Feb 5
United Airlines Logo
2:20 pm - 3:31 pm
SJO
-
IDA
26h 11m
2 stops
United Airlines Logo
4:19 pm - 10:00 pm
IDA
-
SJO
28h 41m
1 stop
$416United Airlines
Mon, Mar 2 - Mon, Mar 9
American Airlines Logo
7:00 am - 11:14 pm
SJO
-
GEG
18h 14m
2 stops
American Airlines Logo
3:10 pm - 9:25 am
GEG
-
SJO
17h 15m
2 stops
$470American Airlines
Tue, Mar 3 - Tue, Mar 10
American Airlines Logo
8:00 am - 1:48 pm
SJO
-
IDA
30h 48m
2 stops
American Airlines Logo
2:18 pm - 11:46 am
IDA
-
SJO
21h 28m
2 stops
$476American Airlines
Thu, Jan 29 - Mon, Feb 2
United Airlines Logo
2:05 pm - 3:31 pm
SJO
-
IDA
26h 26m
2 stops
United Airlines Logo
2:40 pm - 1:15 pm
IDA
-
SJO
45h 35m
2 stops
$501United Airlines
Sun, Mar 1 - Mon, Mar 9
American Airlines Logo
12:35 am - 9:12 pm
SJO
-
GEG
22h 37m
1 stop
American Airlines Logo
6:00 am - 9:43 pm
GEG
-
SJO
14h 43m
1 stop
$527American Airlines
Thu, Jan 29 - Mon, Feb 2
United Airlines Logo
8:45 am - 1:30 pm
SJO
-
IDA
29h 45m
2 stops
United Airlines Logo
4:19 pm - 1:15 pm
IDA
-
SJO
43h 56m
2 stops
$536United Airlines
Tue, Mar 3 - Tue, Mar 10
American Airlines Logo
2:55 pm - 1:48 pm
SJO
-
IDA
23h 53m
1 stop
American Airlines Logo
2:18 pm - 11:46 am
IDA
-
SJO
21h 28m
2 stops
$601American Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
8:45 am - 12:46 pm
SJO
-
GEG
30h 01m
2 stops
United Airlines Logo
6:53 am - 8:39 pm
GEG
-
SJO
35h 46m
2 stops
$615United Airlines
Tue, Feb 3 - Sun, Feb 8
Alaska Airlines Logo
1:16 am - 4:19 pm
SJO
-
GEG
17h 03m
1 stop
Alaska Airlines Logo
7:49 pm - 11:59 pm
GEG
-
SJO
26h 10m
2 stops
$742Alaska Airlines
Tue, Feb 3 - Sun, Feb 8
Alaska Airlines Logo
1:16 am - 4:19 pm
SJO
-
GEG
17h 03m
1 stop
Alaska Airlines Logo
6:50 am - 11:59 pm
GEG
-
SJO
15h 09m
1 stop
$783Alaska 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$188
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 9171 reviews
7.3Comfort
7.1Entertainment
7.7Boarding
8.1Crew
6.6Food
Airline reviews

Delayed, toilets did not flush, pilot parked to far away from Gate

2.0 MediocreLisa, Jan 2026
ELP - IAH
Read more United Airlines reviews

Delayed, toilets did not flush, pilot parked to far away from Gate

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

Both flights delayed. 2nd flight over 3 hours late mechanical issues

l really enjoy very much the flight was very pleasant

left on time, reasonable boarding process arrived early luggage came out quickly

I like flying first class, and United has a nice one

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

Information on your arrival and departure airports