$37 Find Cheap Flights from Idaho to California

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Low season

February

High season

December

Cheapest flight

$37
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from Boise to Las Vegas

Flights from Idaho to California: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Idaho to California 
Verified travelerFlew with Alaska AirlinesBOI-BURJul 2024
If they ask you to check your bag at the gate because the flight is full, you get to board sooner even if you don't check ALL of your bags.
WALTERFlew with Alaska AirlinesBOI-BURJun 2024
Do not purchase tickets from Spirit airlines, those guys are jokes. Cancelled my family flight and made them spend one whole day at airport with no food.

FAQs for booking flights from Idaho to California

  • How does KAYAK find such low prices on flights from Idaho to California?

    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 Idaho to California.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to California?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Idaho to California 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 Idaho to California?

    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 Idaho to California 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 Idaho to California?

    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 Idaho to California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in California?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in California is Burbank Bob Hope Airport (BUR), with an average flight price of $108.

  • What is the cheapest day to fly to California?

    Based on KAYAK data, the cheapest day to fly to California is Thursday where round-trip tickets can be as cheap as $381. On the other hand, the most expensive day to fly is Tuesday, where round-trip prices are $592 on average.

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

    The cheapest time of day to fly to California is generally in the evening, when round-trip flights cost $335 on average. Morning departures are around 52% more expensive than evening flights, on average. The most expensive time of day to fly to California is generally at night, which is peak travel time and where the average cost of a ticket is $519.

  • What is the cheapest flight to California?

    The cheapest ticket to California from Idaho found in the last 72 hours was to Oakland, at $95 round-trip. The most popular route is Boise (BOI) to San Francisco (SFO) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $176.

  • What is the cheapest month to fly from Idaho to California?

    The cheapest month for flights from Idaho to California is September, when tickets cost $235 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $337 and $316 respectively.

  • How far in advance should I book a flight from Idaho to California?

    To get a below average price on the flight from Idaho to California, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

  • How long is the flight to California?

    An average nonstop flight from Idaho to California takes 3h 14m, covering a distance of 692 miles. The shortest route is Boise (BOI) to Sacramento (SMF) with an average flight time of 1h 25m.

  • What are the most popular destinations in California?

    Based on KAYAK flight searches, the most popular destination is Las Vegas (23% of total searches to California). The next most popular destinations are Los Angeles (16%) and San Diego (14%). Searches for flights to Santa Ana (8%), to San Francisco (7%) and to Sacramento (6%) are also popular.

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Top 5 airlines serving from Idaho to California

Need help choosing which airline to fly with from Idaho to California? 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.
8.0
Alaska AirlinesOverall score based on 9871 reviews
7.1Food
8.5Crew
8.2Boarding
7.1Entertainment
7.9Comfort
Airline reviews

the flight was delayed twice and then delayed from taking off.

2.0 MediocreRonald, Apr 2025SNA - SFO
Read more Alaska Airlines reviews

the flight was delayed twice and then delayed from taking off.

Crew was very good. Problem was not Alaska Airlines’ fault, there was a horrible, squealing, screaming kid near me.

This was my first trip in years with Alaska. I don’t think I’ll do it again. The planes are old and tired looking. The seats are small with zero legroom. The JFK terminal is one of the worst I’ve been in. On this flight the pilot had to abort the landing and circle the Bay before trying again. I think I’ll stick with the usual suspects …

Flight was over an hour late, and we got notified every 15 minutes, beginning right at boarding, that it would only be 15 more minutes until we finally left about 75 minutes late. Of course, no compensation was offered.

flight took off over an hour and a half late and there was no beverage service during the flight

Although both planes (flights) had mechanical issue delaying both of my flights, the crew members handled everything with ease. Both flights had the smoothest take off and landing. I opted to upgrade my seat to first class and really lucked out getting the seat at the very front of the plane. Awesome treat to myself. I really enjoyed my flight.

The staff from check-in counter to the flight crew were great. Flight was right on schedule. 10/10

The flight was canceled and very little help given at the check in desk. Everyone at the desk says: just go on the app and see how they rebooked you. I mean come on it’s embarrassing customer service.

I’m New to Alaska Airlines. I was not able to connect to WiFi on either leg of my flights to/from Santa Rosa. Otherwise, it was an enjoyable ride.

Changed flight from San Fran to Seattle Then with a Delayed takeoff barely made my connection Waited over an hour for luggage 😜

It was a perfect flight in all aspects! Both legs!

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a hell hole of an airport. It is the new LaGuardia. Everything Cobbled together. Security gates closed. Terri directional signage

I will be flying again Southwest Airlines. Friendly crew, comfortable and affordable.

The plane arrived 25 minutes late, and the Wi-Fi was slower than it usually is.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Seats are much much more comfortable than United, which is what I usually fly

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Only one side of the heafphone jack work. Crew was friendly and helpful.

My husband is very tall and we generally fly Delta Comfort. We used our companion benefit, and our seats were coach and extremely uncomfortable........ horrid even

Great. Flight departed early and arrived early. Deplaning and baggage claim ww were quick.

They separated our seats and moved us to the back of the plane. Hundreds of dollars and thousands of miles used and this was my platinum member experience.

AC barely worked on a 50 minute flight. It was very warm the whole flight. Flight was very bumpy and hard landing.

Got on the plane and then needed to deboard the plane because they didn’t have any pilots?

The flight was canceled two hours before departure, it took over five hours to rebook us on another flight.

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Awful. Worst airline I have ever been on. Crew were among the rudest people I have ever dealt with. United staff members were rude and disrespectful. My flight was delayed, causing me to miss a connecting flight. I understand things happen, but when staff start lying about what actually happened, that is when I have an issue. Just be honest, really it isn’t that hard. I’m being very honest with this review and I don’t find this difficult what so ever. In fact, because of United Airlines, my Christmas holiday was off to a really rocky start. As someone who has traveled across the world, it has only been United that I have had a truly awful experience.

Boarding always seems a bit chaotic. Seat spacing could leave more for leg room.

Good flight. On time. Boarding and seating was easy. Crew were really friendly, yet professional. Bathroom (by cockpit) was small but serviceable. Some the seats were showing some notable wear & tear, but were comfy. Very happy UA customer. TY! 🤛🏽💗

We arrived early and finally made it to our gate almost an hour after.

We were delayed 3x and because I didn’t purchase my tickets directly from United Airlines I was told I Have to take care of it myself so I called Underpricer and they helped me but before I changed my flights I took the risk of sticking by what my tickets were and was lucky to have gotten on the original all flight with only 15 mins before take off. not sure if I will do this again

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Terrible. Still have not received the refund from them. They sent it to some account that I don't even know. Spoke with costumer service and they are unable to help.

I didn’t like it at all. I miss my second flight because of the delay on Allegiant Air now I m stuck in MCO.

Good, but a bit late on take off after loading. Don't like charging for carry ons!

First time flying with them and will definitely fly again in the future. Crew was so nice and friendly, fought was seamless. They are simple planes, no entertainment, but it’s fine for a short flight or if you have personal devices Rates are competitive, and they did so well with keeping the flight on time after a tropical storm, where other airlines had delays and cancellations.

They boarded passengers that sat in the back of the plane first, making boarding very efficient.

I didn't even take this flight. My plans changed and I couldn't get ahold of customer service and the website kept breaking down during the attempt to change the flight. I wound up taking another airline entirely and eating the cost.

The worst flying experience ever 3 delays. No accommodations. Had to deboard the plane after being delayed.

Posted a 20minute delay but didn’t delay at all. Caused boarding issues and confusion. Also, didn’t release baggage. Took over an hour and 20 minutes to get luggage.

Flight was good, boarding was a breeze, flight attendants were friendly and professional. There was a medical issue with another passenger and the crew handled it in a calm and professional way.

Book cheap flights from Idaho to California

Recent round-trip flight deals

5/4Sun
nonstopAllegiant Air
2h 23mGEG-LAS
5/8Thu
nonstopAllegiant Air
2h 30mLAS-GEG
$82
5/8Thu
nonstopAllegiant Air
2h 23mGEG-LAS
5/15Thu
nonstopAllegiant Air
2h 28mLAS-GEG
$86
5/13Tue
nonstopAlaska Airlines
1h 50mBOI-LAS
5/23Fri
nonstopAlaska Airlines
1h 50mLAS-BOI
$137
5/14Wed
nonstopUnited Airlines
1h 59mBOI-SFO
5/21Wed
nonstopUnited Airlines
1h 46mSFO-BOI
$137
5/13Tue
1 stopAlaska Airlines
4h 50mBOI-LAS
5/23Fri
nonstopAlaska Airlines
1h 50mLAS-BOI
$147
5/5Mon
nonstopUnited Airlines
2h 02mBOI-SFO
5/7Wed
nonstopUnited Airlines
1h 46mSFO-BOI
$147
5/14Wed
1 stopSouthwest
6h 45mGEG-SAN
5/20Tue
1 stopSouthwest
4h 10mSAN-GEG
$152
5/21Wed
1 stopSouthwest
4h 25mBOI-SMF
5/27Tue
1 stopSouthwest
7h 40mSMF-BOI
$156
5/13Tue
1 stopDelta
8h 02mBOI-LAS
5/21Wed
1 stopDelta
5h 51mLAS-BOI
$157
5/6Tue
1 stopDelta
4h 17mBOI-BUR
5/10Sat
1 stopDelta
3h 54mBUR-BOI
$157

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Recent one-way flight deals

5/19Mon
nonstopSpirit Airlines
1h 47mBOI-LAS
$37
6/16Mon
nonstopSpirit Airlines
1h 52mBOI-LAS
$43
5/13Tue
nonstopAlaska Airlines
1h 50mBOI-LAS
$69
5/13Tue
nonstopAlaska Airlines
2h 07mBOI-BUR
$74
5/13Tue
1 stopDelta
5h 08mBOI-SMF
$79
5/24Sat
1 stopDelta
5h 56mBOI-SFO
$79
6/10Tue
1 stopSouthwest
3h 45mBOI-BUR
$79
5/15Thu
nonstopSouthwest
1h 25mBOI-SMF
$89
5/23Fri
nonstopUnited Airlines
1h 50mBOI-SFO
$97
5/25Sun
1 stopUnited Airlines
5h 17mBOI-LAS
$99

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Last minute flights from Idaho to California

Last minute flight, train and bus deals

4/17Thu
nonstopAllegiant Air
2h 23mGEG-LAS
4/20Sun
nonstopAllegiant Air
2h 30mLAS-GEG
$157
4/17Thu
nonstopAllegiant Air
2h 23mGEG-LAS
4/20Sun
nonstopAllegiant Air
2h 30mLAS-GEG
$169
4/18Fri
multi-stopAlaska Airlines
7h 19mGEG-LAS
4/25Fri
multi-stopAlaska Airlines
4h 45mLAS-GEG
$345
4/19Sat
multi-stopDelta
4h 53mGEG-LAS
4/21Mon
multi-stopDelta
6h 19mLAS-GEG
$346
4/20Sun
multi-stopAlaska Airlines
5h 00mGEG-LAS
4/28Mon
multi-stopAlaska Airlines
11h 54mLAS-GEG
$366
4/18Fri
multi-stopSouthwest
3h 30mBOI-BUR
4/21Mon
multi-stopSouthwest
4h 10mBUR-BOI
$387
4/18Fri
multi-stopSouthwest
7h 30mBOI-BUR
4/21Mon
multi-stopSouthwest
6h 20mBUR-BOI
$397
4/20Sun
nonstopDelta
2h 26mBOI-LAX
4/24Thu
nonstopDelta
2h 05mLAX-BOI
$417
4/20Sun
multi-stopUnited Airlines
7h 52mBOI-SMF
4/21Mon
multi-stopUnited Airlines
4h 39mSMF-BOI
$517
4/20Sun
nonstopUnited Airlines
1h 59mBOI-SFO
4/20Sun
nonstopUnited Airlines
1h 46mSFO-BOI
$542

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Everything you need to know for your flight to California

Cabin class types available on flights to Idaho

Cabin classes available on flights to Idaho. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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