$318 Find Cheap Flights from San José to Idaho - Compare and Save

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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 5 days
Sort by: Cheapest
Hailey
Hailey
14h 31m3 stops
from $583per person
Idaho Falls
Idaho Falls
12h 17m4 stops
from $589per person
Boise
11h 29m2 stops
from $591per person
Booking Insights

Price, demand and travel trends for San José to Idaho flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from San José to Idaho recently?

Here are the cheapest round-trip fares from San José to Idaho on KAYAK in the last week:

• Hailey Sun Valley-Friedman (SUN) from $583
• Idaho Falls Fanning Field (IDA) from $589
• Boise Air Term. Gowen Fld (BOI) from $591

How do fares into airports in Idaho compare?

According to KAYAK data from the last 12 months, the cheapest airports to fly into Idaho from San José are:

• Boise Air Term. Gowen Fld (BOI) (avg. price $485)
• Hailey Sun Valley-Friedman (SUN) (avg. price $636)
• Idaho Falls Fanning Field (IDA) (avg. price $691)

How do fares from San José to Idaho vary by day of the week?

On average, Thursday is the cheapest day to fly from San José to Idaho and Tuesday is the most expensive. Looking at the past 12 months of KAYAK data, it's 42% more expensive to fly on a Tuesday compared to Thursday.

What's the best time of day to fly from San José to Idaho?

It's cheapest to fly to Idaho at night with average prices of $484. The morning is the most expensive time to fly, with average prices of $603.

Key details for San José to Idaho flights

Low season

August

Cheapest flight

$318
Beat the crowds with an average 69% drop in travelers.
The most popular month to fly with an average 55% increase in travelers.
One-way flight from San José to Boise

Your San José to Idaho flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from San José to Idaho?

    Fares from San José to Idaho are around their usual level right now. A round-trip under $466 is considered a good deal, so it's worth keeping an eye out, or setting a Price Alert to catch fare changes.

  • How much should I budget for a flight from San José to Idaho?

    Over the past 12 months, round-trip fares from San José to Idaho have typically cost between $466 and $734.

  • What are the main airports serving Idaho?

    There are 9 airports in Idaho. 53% of KAYAK users choose Hailey Sun Valley-Friedman (SUN) as their arrival airport, while 37% choose Boise Air Term. Gowen Fld (BOI).

  • Which airlines fly nonstop from San José to Idaho?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from San José to Idaho. One-stop options include:

    • American Airlines
    • United Airlines
    • Southwest

  • Which destinations in Idaho can I fly nonstop from San José?

    Based on the flight schedule for the next 3 months, there are no nonstop flights from San José to Idaho. The most popular destination you can reach with one stop is Boise.

  • Which cabin classes are available from San José to Idaho?

    On flights from San José to Idaho you can only book Economy Class.

  • What are some popular landmarks around Idaho?

    Idaho is home to many popular sights. KAYAK travelers' favorites include:

    • Idaho Central Arena
    • Julia Davis Park
    • Discovery Center of Idaho
    • Boise Art Museum

Your guide to booking San José to Idaho flights

Get tips on when to book, when to fly and what to know before your trip.
  • Flexible with your dates? Fly in January to save some money. It's typically the cheapest month on this route, while flights in September will cost you the most.
  • Fly out on a Thursday to get the cheapest fares. Avoid Tuesday flights, which are about 42% more expensive.
  • If you're watching your budget, fly into Boise Air Term. Gowen Fld (BOI) which has the lowest average airfare in the region. Just remember to budget for any onward travel by bus, car or domestic flight.
  • Start your trip in Boise, the most popular destination in Idaho. From there, it's easy to continue on to other popular spots such as Idaho Falls, Coeur d'Alene and Twin Falls.

Reviews of the top airline flying from San José to Idaho

 
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.
7.3
United AirlinesOverall score based on 10486 reviews
8.1Crew
6.7Food
7.3Comfort
7.7Boarding
7.1Entertainment
Airline reviews

We had missed our scheduled connecting flight to Casper and was on the late arrival of 10:15. The plane pulled up to the gangway and nobody was getting off after waiting several minutes. The pilot made an announcement that he needed to start the engines and make a circle back to the parking spot 6 inches closer. Overall, it took 45 minutes to get off the plane that usually takes less than 15. Because of the flight delays out of Casper at the beginning of our trip and on the way home, we booked our next trip out of Denver which is a four hour drive each way.

4.0 OkayPaul, Nov 2026
Read more United Airlines reviews

We had missed our scheduled connecting flight to Casper and was on the late arrival of 10:15. The plane pulled up to the gangway and nobody was getting off after waiting several minutes. The pilot made an announcement that he needed to start the engines and make a circle back to the parking spot 6 inches closer. Overall, it took 45 minutes to get off the plane that usually takes less than 15. Because of the flight delays out of Casper at the beginning of our trip and on the way home, we booked our next trip out of Denver which is a four hour drive each way.

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

More options for your flight from San José to Idaho

Complete your trip to Idaho with a hotel stay or car rental