$39 Find Cheap Flights from Idaho to California

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Low seasonFebruary
High seasonMay
Cheapest flight$39
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Spokane to Los Angeles

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 Santa Ana J. Wayne/Orange Cnty Airport (SNA), with an average flight price of $112.

  • 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 Santa Ana, at $85 round-trip. The most popular route is Boise (BOI) to Los Angeles (LAX) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $164.

  • 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 23m, 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 Los Angeles (19% of total searches to California). The next most popular destinations are Las Vegas (16%) and San Diego (14%). Searches for flights to Santa Ana (8%), to Sacramento (7%) and to Ontario (6%) are also popular.

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 9968 reviews
7.1Food
7.9Comfort
8.5Crew
7.1Entertainment
8.2Boarding
Airline reviews

Boarding was quick and easy as always the crew is on their game as always I always have an enjoyable flight so I’m good.

10.0 ExcellentAnonymous, Apr 2025EUG - LAX
Read more Alaska Airlines reviews

Boarding was quick and easy as always the crew is on their game as always I always have an enjoyable flight so I’m good.

Need to get on train for second flight it’s much nicer when all the gates are together for obvious reasons

Cramped, crowded aircraft. Poorly organized boarding. Tasteless crackers to eat. 40 minutes late. A standard US air travel experience.

It was my first time flying Alaska Airlines and first time flying from Santa Rosa airport. The staff was very professional and friendly. Their instructions were clear and any question was answered satisfactorily. My seat was comfortable and the in-flight beverage service very adequate for the duration of the flight. We arrived ahead of the scheduled landing time and deplaning was simple. I look forward to flying with Alaska again.

Flight attendant took my carefully folded coat and flung it across the aisle to the bin across the way. Where one of the passengers rescued it for me, because that just wasn’t right!!

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

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.

I specifically picked out right side aisle seats because my left knee sometimes needs to be stretched. But my experience this trip was that the seats were shuffled and I lost those assigned seats, resulting in me having to sit in a much less desirable position for my comfort.

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?

A bit rush for transit. Food and entertainment are not available

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.

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

5/23Fri
nonstopAllegiant Air
2h 39mGEG-LAX
5/26Mon
nonstopAllegiant Air
2h 35mLAX-GEG
$78
6/30Mon
nonstopAllegiant Air
2h 39mGEG-LAX
7/4Fri
nonstopAllegiant Air
2h 35mLAX-GEG
$82
5/28Wed
nonstopAlaska Airlines
2h 43mGEG-LAX
5/29Thu
nonstopAlaska Airlines
2h 37mLAX-GEG
$137
5/20Tue
nonstopAlaska Airlines
2h 50mGEG-SAN
5/21Wed
nonstopAlaska Airlines
2h 48mSAN-GEG
$146
5/20Tue
1 stopSouthwest
5h 20mGEG-SAN
5/21Wed
1 stopSouthwest
4h 05mSAN-GEG
$152
5/28Wed
1 stopSouthwest
4h 25mBOI-LAS
6/4Wed
1 stopSouthwest
4h 10mLAS-BOI
$156
6/17Tue
1 stopDelta
6h 35mBOI-SJC
6/17Tue
1 stopDelta
6h 15mSJC-BOI
$157
7/9Wed
1 stopDelta
7h 25mBOI-SJC
7/12Sat
1 stopDelta
6h 26mSJC-BOI
$159
6/6Fri
1 stopUnited Airlines
6h 38mBOI-LAS
6/9Mon
1 stopUnited Airlines
4h 31mLAS-BOI
$197
6/6Fri
1 stopUnited Airlines
5h 21mBOI-SMF
6/8Sun
1 stopUnited Airlines
6h 39mSMF-BOI
$217

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Recent one-way flight deals

6/16Mon
nonstopAllegiant Air
2h 39mGEG-LAX
$39
6/2Mon
nonstopSpirit Airlines
1h 47mBOI-LAS
$43
5/31Sat
nonstopAlaska Airlines
1h 49mBOI-SJC
$69
5/31Sat
nonstopAlaska Airlines
2h 50mGEG-SAN
$69
5/21Wed
nonstopDelta
2h 46mGEG-LAX
$69
5/27Tue
1 stopDelta
5h 21mBOI-SMF
$79
5/21Wed
1 stopSouthwest
5h 05mGEG-LAX
$79
6/3Tue
2 stopsSouthwest
6h 50mBOI-SJC
$84
7/23Wed
1 stopUnited Airlines
7h 33mGEG-LAX
$109
6/1Sun
nonstopUnited Airlines
2h 30mBOI-LAX
$119

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Last minute flights from Idaho to California

Last minute flight, train and bus deals

5/2Fri
nonstopAllegiant Air
2h 16mBOI-SNA
5/10Sat
nonstopAllegiant Air
2h 10mSNA-BOI
$213
5/2Fri
nonstopAllegiant Air
2h 16mBOI-SNA
5/12Mon
nonstopAllegiant Air
2h 10mSNA-BOI
$215
5/3Sat
multi-stopAlaska Airlines
6h 43mGEG-SMF
5/10Sat
multi-stopAlaska Airlines
6h 04mSMF-GEG
$338
5/2Fri
multi-stopDelta
6h 38mGEG-SMF
5/4Sun
multi-stopDelta
5h 12mSMF-GEG
$339
5/3Sat
multi-stopAlaska Airlines
5h 54mGEG-LAS
5/6Tue
multi-stopAlaska Airlines
5h 09mLAS-GEG
$345
5/3Sat
multi-stopDelta
3h 51mGEG-LAS
5/5Mon
multi-stopDelta
5h 32mLAS-GEG
$346
5/5Mon
multi-stopSouthwest
6h 35mBOI-LAX
5/13Tue
multi-stopSouthwest
6h 50mLAX-BOI
$462
5/5Mon
multi-stopSouthwest
5h 25mBOI-SMF
5/7Wed
multi-stopSouthwest
8h 30mSMF-BOI
$482
5/5Mon
nonstopUnited Airlines
2h 21mBOI-LAX
5/5Mon
multi-stopUnited Airlines
14h 14mLAX-BOI
$508
5/3Sat
multi-stopUnited Airlines
5h 24mGEG-LAS
5/6Tue
multi-stopUnited Airlines
23h 23mLAS-GEG
$580

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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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