$240 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 6/6. 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
Boise2 stops$391
Idaho Falls
Idaho Falls2 stops$384
Spokane
Spokane2 stops$399
Boise
Boise2 stops$391
Idaho Falls
Idaho Falls2 stops$384
Spokane
Spokane2 stops$399

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, Oct 23 - Mon, Oct 26
United Airlines Logo
7:55 am - 9:53 am
SJO
-
IDA
25h 58m
2 stops
United Airlines Logo
5:57 pm - 12:15 pm
IDA
-
SJO
18h 18m
2 stops
$384United Airlines
Thu, Oct 1 - Mon, Oct 5
United Airlines Logo
7:55 am - 8:53 pm
SJO
-
GEG
37h 58m
2 stops
United Airlines Logo
5:00 am - 12:21 pm
GEG
-
SJO
30h 21m
2 stops
$399United Airlines
Thu, Oct 1 - Mon, Oct 5
United Airlines Logo
1:25 pm - 8:53 pm
SJO
-
GEG
32h 28m
2 stops
United Airlines Logo
6:00 am - 12:21 pm
GEG
-
SJO
29h 21m
2 stops
$434United Airlines
Sun, Oct 4 - Sun, Oct 11
Multiple Airlines Logo
5:05 am - 11:35 pm
SJO
-
GEG
19h 30m
2 stops
Multiple Airlines Logo
7:00 am - 11:40 pm
GEG
-
SJO
15h 40m
2 stops
$461Multiple Airlines
Thu, Oct 1 - Mon, Oct 5
United Airlines Logo
8:45 am - 10:16 pm
SJO
-
GEG
14h 31m
1 stop
United Airlines Logo
5:00 am - 12:21 pm
GEG
-
SJO
30h 21m
2 stops
$478United Airlines
Thu, Oct 1 - Mon, Oct 5
United Airlines Logo
8:45 am - 10:16 pm
SJO
-
GEG
14h 31m
1 stop
United Airlines Logo
6:00 am - 12:21 pm
GEG
-
SJO
29h 21m
2 stops
$513United Airlines
Tue, Jun 23 - Sun, Jun 28
United Airlines Logo
7:55 am - 3:12 pm
SJO
-
GEG
32h 17m
2 stops
United Airlines Logo
5:00 am - 10:11 am
GEG
-
SJO
28h 11m
2 stops
$537United 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
1:41 pm - 1:52 pm
IDA
-
SJO
24h 11m
2 stops
$573American Airlines
Thu, Aug 13 - Thu, Aug 20
American Airlines Logo
1:29 pm - 11:30 am
SJO
-
IDA
22h 01m
2 stops
American Airlines Logo
1:41 pm - 12:26 pm
IDA
-
SJO
22h 45m
2 stops
$576American Airlines
Thu, Aug 13 - Thu, Aug 20
American Airlines Logo
1:29 pm - 11:30 am
SJO
-
IDA
22h 01m
2 stops
American Airlines Logo
2:20 pm - 11:34 am
IDA
-
SJO
21h 14m
2 stops
$596American 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.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$240
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly with an average 41% 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 9684 reviews
6.6Food
7.3Comfort
7.7Boarding
8.1Crew
7.1Entertainment
Airline reviews

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

6.0 GoodAnonymous, May 2026
DEN - ORD
Read more United Airlines reviews

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.

Seats were not super comfortable and food was not good at all. If I had a chance I would definitely fly a different airline. Of course they are better than any budget airline, but not by much.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Very friendly and helpful staff on board and United was excellent when I missed my onward flight due to the delay in London. Very well organised meant much less stress

Flew steerage class. Short on leg room unless you pay more. No window unless you pay more. Etc. United is trying to squeeze every cent from you. It doesn’t make for any loyalty.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

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

Information on your arrival and departure airports

San José (SJO)