$275 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 10/13. 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

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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$467
Idaho Falls
Idaho Falls2 stops$514
Spokane
Spokane2 stops$450
Boise
Boise1 stop$467
Idaho Falls
Idaho Falls2 stops$514
Spokane
Spokane2 stops$450

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, Aug 28 - Sat, Sep 5
Multiple Airlines Logo
5:05 am - 10:38 pmSJO  San José Juan Santamaria Intl-GEG Spokane
18h 33m2 stops San Salvador El Salvador Intl Los Angeles
Multiple Airlines Logo
7:00 am - 11:15 pmGEG  Spokane-SJO San José Juan Santamaria Intl
15h 15m2 stops Los Angeles Guatemala City La Aurora
$450Multiple Airlines
Fri, Oct 9 - Sun, Oct 18
Multiple Airlines Logo
5:05 am - 11:35 pmSJO  San José Juan Santamaria Intl-GEG Spokane
19h 30m2 stops San Salvador El Salvador Intl Los Angeles
Multiple Airlines Logo
7:00 am - 11:40 pmGEG  Spokane-SJO San José Juan Santamaria Intl
15h 40m2 stops Los Angeles San Salvador El Salvador Intl
$452Multiple Airlines
Thu, Sep 24 - Sun, Sep 27
United Airlines Logo
8:45 am - 10:16 pmSJO  San José Juan Santamaria Intl-GEG Spokane
14h 31m1 stop San Francisco
United Airlines Logo
6:00 am - 12:21 pmGEG  Spokane-SJO San José Juan Santamaria Intl
29h 21m2 stops San Francisco Houston George Bush Intcntl
$512United Airlines
Fri, Oct 9 - Sat, Oct 17
United Airlines Logo
7:55 am - 9:53 amSJO  San José Juan Santamaria Intl-IDA Idaho Falls Fanning Field
25h 58m2 stops Houston George Bush Intcntl Denver Intl
United Airlines Logo
5:51 pm - 12:21 pmIDA  Idaho Falls Fanning Field-SJO San José Juan Santamaria Intl
18h 30m2 stops Denver Intl Houston George Bush Intcntl
$514United Airlines
Thu, Sep 24 - Sun, Sep 27
United Airlines Logo
8:45 am - 10:16 pmSJO  San José Juan Santamaria Intl-GEG Spokane
14h 31m1 stop San Francisco
United Airlines Logo
6:00 am - 7:15 amGEG  Spokane-SJO San José Juan Santamaria Intl
24h 15m1 stop San Francisco
$515United Airlines
Fri, Aug 28 - Sat, Sep 5
Multiple Airlines Logo
12:40 pm - 1:23 pmSJO  San José Juan Santamaria Intl-GEG Spokane
25h 43m3 stops Panama City Tocumen Intl San Salvador El Salvador Intl Los Angeles
Multiple Airlines Logo
7:00 am - 11:15 pmGEG  Spokane-SJO San José Juan Santamaria Intl
15h 15m2 stops Los Angeles Guatemala City La Aurora
$516Multiple Airlines
Fri, Aug 28 - Sat, Sep 5
Multiple Airlines Logo
5:05 am - 10:38 pmSJO  San José Juan Santamaria Intl-GEG Spokane
18h 33m2 stops San Salvador El Salvador Intl Los Angeles
Multiple Airlines Logo
7:00 am - 11:15 pmGEG  Spokane-SJO San José Juan Santamaria Intl
15h 15m1 stop Los Angeles
$521Multiple Airlines
Sat, Oct 24 - Tue, Oct 27
United Airlines Logo
8:45 am - 6:31 pmSJO  San José Juan Santamaria Intl-GEG Spokane
10h 46m1 stop San Francisco
United Airlines Logo
1:00 pm - 7:32 amGEG  Spokane-SJO San José Juan Santamaria Intl
17h 32m1 stop San Francisco
$523United Airlines
Wed, Nov 4 - Sun, Nov 8
United Airlines Logo
8:45 am - 9:53 amSJO  San José Juan Santamaria Intl-IDA Idaho Falls Fanning Field
26h 08m2 stops Houston George Bush Intcntl Denver Intl
United Airlines Logo
5:40 pm - 1:22 pmIDA  Idaho Falls Fanning Field-SJO San José Juan Santamaria Intl
18h 42m2 stops Denver Intl Houston George Bush Intcntl
$525United Airlines
Sat, Oct 24 - Tue, Oct 27
United Airlines Logo
7:55 am - 8:49 pmSJO  San José Juan Santamaria Intl-GEG Spokane
13h 54m2 stops Houston George Bush Intcntl Denver Intl
United Airlines Logo
1:00 pm - 12:22 pmGEG  Spokane-SJO San José Juan Santamaria Intl
22h 22m2 stops San Francisco Houston George Bush Intcntl
$527United 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 $0 (return) on average. On the other hand, the most expensive months are March and January, when the average cost of round-trip tickets is $870 and $706 respectively.

Find deals

Good to know

Low season

September

Cheapest flight

$275
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from San José to Idaho Falls

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 10089 reviews
7.1Entertainment
7.3Comfort
7.7Boarding
8.1Crew
6.7Food
Airline reviews

The website check in was poor. Baggage fees were in US dollars but registered in Canadian dollars. The site would not accept my credit card. Scanning the passport was the worst. Someone from United needs to try the process. I’m not a novice with tech and I have to say this was a bad experience. Everything else was great.

10.0 ExcellentJ-D, Aug 2026
Read more United Airlines reviews

The website check in was poor. Baggage fees were in US dollars but registered in Canadian dollars. The site would not accept my credit card. Scanning the passport was the worst. Someone from United needs to try the process. I’m not a novice with tech and I have to say this was a bad experience. Everything else was great.

The flight to Houston the agents were not very helpful

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 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.

It was good, although we could not get our preferred seats, we did enjoy the whole experience from Costa Rica. I still don't understand why our luggage is not the first to come out at the band.

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

I love United was disappointed we had a two hour delay, however the Pilot did say safety first.

Since when do I have to pay for my checked bag? I have a United Explorer mileage plus silver card and I was charged for my checked bags. This also is an international flight. So I would like an explanation to be clear before I choose an airline please?

I was at the back of the plane with earphones, and I could still hear the chatty flight attendants; I wasn't able to sleep at all.

Boarding was terrible. My wife uses a wheel chair and she was in an incredibly hot closed metal cargo box for close to 20 minutes before getting on board

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

Information on your arrival and departure airports

San José (SJO)