$196 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 12/18. 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$282
Idaho Falls
Idaho Falls2 stops$313
Spokane
Spokane2 stops$359
Boise
Boise2 stops$282
Idaho Falls
Idaho Falls2 stops$313
Spokane
Spokane2 stops$359

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

Sun, Mar 22 - Tue, Mar 31
United Airlines Logo
5:40 am - 1:30 pmSJO-IDA
31h 50m2 stops
United Airlines Logo
2:35 pm - 10:11 amIDA-SJO
19h 36m2 stops
$313United Airlines
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Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
2:20 pm - 3:31 pmSJO-IDA
26h 11m2 stops
United Airlines Logo
4:19 pm - 8:39 pmIDA-SJO
27h 20m2 stops
$353United Airlines
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Mon, May 18 - Fri, May 29
United Airlines Logo
7:55 am - 1:29 pmSJO-IDA
29h 34m2 stops
United Airlines Logo
5:57 pm - 10:11 amIDA-SJO
16h 14m2 stops
$355United Airlines
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Thu, Feb 5 - Mon, Feb 9
American Airlines Logo
4:02 pm - 6:49 pmSJO-GEG
28h 47m2 stops
American Airlines Logo
6:00 am - 1:54 pmGEG-SJO
29h 54m2 stops
$359American Airlines
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Tue, Mar 31 - Thu, Apr 2
American Airlines Logo
2:20 pm - 11:45 amSJO-GEG
22h 25m2 stops
American Airlines Logo
11:59 pm - 9:25 amGEG-SJO
32h 26m2 stops
$367American Airlines
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Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
6:30 am - 9:56 amSJO-IDA
28h 26m2 stops
United Airlines Logo
2:40 pm - 6:16 pmIDA-SJO
26h 36m2 stops
$375United Airlines
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Tue, Mar 31 - Thu, Apr 2
American Airlines Logo
2:20 pm - 9:12 pmSJO-GEG
31h 52m1 stop
American Airlines Logo
11:59 pm - 9:25 amGEG-SJO
32h 26m2 stops
$384American Airlines
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Wed, Feb 4 - Mon, Feb 9
Alaska Airlines Logo
1:16 am - 9:25 pmSJO-GEG
22h 09m2 stops
Alaska Airlines Logo
9:05 am - 11:59 pmGEG-SJO
12h 54m2 stops
$420Alaska Airlines
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Wed, Feb 4 - Mon, Feb 9
Alaska Airlines Logo
1:16 am - 5:06 pmSJO-GEG
17h 50m2 stops
Alaska Airlines Logo
9:05 am - 11:59 pmGEG-SJO
12h 54m2 stops
$468Alaska Airlines
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Wed, Jan 21 - Mon, Jan 26
Alaska Airlines Logo
1:16 am - 10:59 pmSJO-IDA
22h 43m2 stops
Alaska Airlines Logo
6:58 pm - 11:59 pmIDA-SJO
52h 01m2 stops
$485Alaska Airlines
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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 November and February, when the average cost of round-trip tickets is $711 and $633 respectively.

What’s the cheapest day of the week to fly from San José to Idaho?

The average price of all round-trip flights from San José to Idaho clicked on KAYAK for each day over the last 12 months.

For San José to Idaho, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Idaho back to San José, the best deals are generally found on Sunday, with Friday being the most expensive.

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Good to know

Low seasonFebruary
Cheapest flight$196
Best time to beat the crowds but there is an average 33% increase in price.
Most popular time to fly with an average 29% 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.

  • What is the cheapest time of day to fly to Idaho?

    The cheapest time of day to fly to Idaho is generally in the afternoon, when round-trip flights cost $434 on average. The most expensive time of day to fly to Idaho is generally at night, which is peak travel time and where the average cost of a ticket is $668.

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 9050 reviews
7.3Comfort
6.6Food
8.1Crew
7.7Boarding
7.1Entertainment
Airline reviews

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

8.0 ExcellentAnonymous, Nov 2025BTR - IAH
Read more United Airlines reviews

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Quick and seamless boarding. No entertainment but fast Starlink wifi for this short trip and the staff was really friendly.

We boarded late. The crew at the airport was dismissive. The seat cushion on the plane was uncomfortable.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

United has come a long way, it’s been a fantastic experience traveling with them.

Even though we were delayed, we were able to make our connection

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Great crew, excellent landing, good food. Over all great experience. Thank you!

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

Information on your arrival and departure airports

San José (SJO)