$39 Find Cheap Flights from California to Idaho

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Low seasonApril
High seasonJuly
Cheapest flight$39
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Los Angeles to Spokane

FAQs for booking flights from California to Idaho

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

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

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

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Idaho is Idaho Falls Fanning Field Airport (IDA), with an average flight price of $69.

  • What is the cheapest day to fly to Idaho?

    Based on KAYAK data, the cheapest day to fly to Idaho is Saturday where round-trip tickets can be as cheap as $258. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $320 on average.

  • 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 $177 on average. Morning departures are around 1% more expensive than evening flights, on average. The most expensive time of day to fly to Idaho is generally in the morning, which is peak travel time and where the average cost of a ticket is $284.

  • What is the cheapest flight to Idaho?

    The cheapest ticket to Idaho from California found in the last 72 hours was to Idaho Falls, at $51 round-trip. The most popular route is Burbank (BUR) to Boise (BOI) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $88.

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

    The cheapest month for flights from California to Idaho is October, when tickets cost $411 (return) on average. On the other hand, the most expensive months are November and July, when the average cost of round-trip tickets is $848 and $597 respectively.

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

    To get a below average price on the flight from California to Idaho, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

  • How long is the flight to Idaho?

    An average nonstop flight from California to Idaho takes 3h 01m, covering a distance of 703 miles. The shortest route is Sacramento (SMF) to Boise (BOI) with an average flight time of 1h 20m.

  • What are the most popular destinations in Idaho?

    Based on KAYAK flight searches, the most popular destination is Boise (44% of total searches to Idaho). The next most popular destinations are Spokane (24%) and Jackson (20%). Searches for flights to Idaho Falls (4%), to Hailey (4%) and to West Yellowstone (3%) are also popular.

Top 5 airlines serving from California to Idaho

 
Need help choosing which airline to fly with from California 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.
8.0
Alaska AirlinesOverall score based on 10000 reviews
8.5Crew
7.1Entertainment
8.1Boarding
7.1Food
7.8Comfort
Airline reviews

Staff are helpful and patient. I don’t appreciate the almost 5 hours delay and also the delay of our luggage and being switched from one carousel to another to pick them up.

2.0 MediocreAnonymous, Jun 2025LAX - SEA
Read more Alaska Airlines reviews

Staff are helpful and patient. I don’t appreciate the almost 5 hours delay and also the delay of our luggage and being switched from one carousel to another to pick them up.

Staff were great but we were delayed on the tarmac for over an hour.

Great crew, smooth flight and landing. Wish they would offer Dr. Pepper and a choice of flavors of pretzels.

Thank you still providing bags for vomit. My son had a migraine and needed a bag to vomit in and it was right there behind the seat in front of us. Thank you!

We waited over an hour for our luggage to arrive at the carousel in Seattle.

The plane was delayed a bit. It wasn't a huge problem though, as we were heading back home.

Flight was great. Boarding was crazy because another flight was boarding late next to ours so everyone was standing and in the way.

Comfortable seat, a little delay, very informative. Love Wi-Fi

very good but no blankets for overnight flight or tv screens…

Good. They checked my bag FOR FREE so I didnt have to try to hoist it up into the overhead compartment. Also, they served free beverages, which I appreciated.

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

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

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

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

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.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Delta flight was on time, seats were comfortable, and crew was nice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

get E+, a must for 5 hours flight if you are tall

The first flight was better in terms of the aircraft.

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Tight! Seats are not designed for those of us who wear extra-large clothes.

The non-stop flight from Grand Rapids was excellent. I neither expected or needed a budget flight and Allegiant made the trip easy and for an affordable price, Arriving at the Mesa Airport (AZA) is a delight compared to the international airport. For our return flight, we were able to arrive 75 minutes before the flight, return the rental car, check our bag and make it to the gate in plenty of time. That would never happen at most airports.

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.

Book cheap flights from California to Idaho

Recent round-trip flight deals

8/22Fri
nonstopAllegiant Air
2h 35mLAX-GEG
8/25Mon
nonstopAllegiant Air
2h 39mGEG-LAX
$78
8/22Fri
nonstopAllegiant Air
2h 35mLAX-GEG
8/25Mon
nonstopAllegiant Air
2h 39mGEG-LAX
$82
8/20Wed
nonstopUnited Airlines
2h 13mSFO-GEG
8/23Sat
nonstopUnited Airlines
2h 27mGEG-SFO
$137
10/18Sat
nonstopAlaska Airlines
2h 11mSFO-GEG
10/20Mon
nonstopAlaska Airlines
2h 19mGEG-SFO
$147
8/13Wed
nonstopAlaska Airlines
2h 45mSAN-GEG
8/16Sat
nonstopAlaska Airlines
2h 47mGEG-SAN
$155
8/16Sat
1 stopDelta
5h 39mSAN-GEG
8/19Tue
1 stopDelta
6h 37mGEG-SAN
$157
7/6Sun
1 stopDelta
6h 19mBUR-BOI
7/11Fri
1 stopDelta
4h 48mBOI-BUR
$159
8/20Wed
1 stopSouthwest
6h 05mSFO-GEG
8/23Sat
2 stopsSouthwest
7h 40mGEG-SFO
$162
8/16Sat
1 stopSouthwest
4h 30mSAN-GEG
8/23Sat
2 stopsSouthwest
7h 00mGEG-SAN
$162
7/15Tue
nonstopUnited Airlines
2h 07mSFO-JAC
8/15Fri
nonstopUnited Airlines
2h 25mJAC-SFO
$209

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Recent one-way flight deals

7/28Mon
nonstopAllegiant Air
2h 35mLAX-GEG
$39
7/21Mon
nonstopAllegiant Air
2h 35mLAX-GEG
$43
8/23Sat
nonstopDelta
2h 27mLAX-GEG
$79
7/15Tue
1 stopDelta
6h 24mBUR-BOI
$80
9/15Mon
1 stopSouthwest
4h 10mSAN-GEG
$84
10/28Tue
1 stopAlaska Airlines
7h 07mLAX-GEG
$88
8/11Mon
1 stopAlaska Airlines
3h 48mSFO-GEG
$88
8/5Tue
2 stopsSouthwest
7h 40mLAX-GEG
$94
10/2Thu
nonstopUnited Airlines
2h 15mLAX-BOI
$121
10/7Tue
1 stopUnited Airlines
4h 57mLAX-JAC
$134

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Last minute flights from California to Idaho

Last minute flight, train and bus deals

6/20Fri
nonstopAllegiant Air
2h 35mLAX-GEG
6/30Mon
nonstopAllegiant Air
2h 39mGEG-LAX
$126
6/20Fri
nonstopAllegiant Air
2h 35mLAX-GEG
6/30Mon
nonstopAllegiant Air
2h 39mGEG-LAX
$134
6/20Fri
multi-stopSouthwest
6h 20mLAX-GEG
6/30Mon
multi-stopSouthwest
6h 10mGEG-LAX
$267
6/20Fri
multi-stopSouthwest
9h 25mLAX-GEG
6/30Mon
multi-stopSouthwest
7h 55mGEG-LAX
$272
6/21Sat
multi-stopDelta
6h 40mSFO-JAC
6/26Thu
multi-stopDelta
5h 29mJAC-SFO
$309
6/21Sat
multi-stopDelta
6h 40mSFO-JAC
6/26Thu
multi-stopDelta
11h 12mJAC-SFO
$314
6/20Fri
nonstopUnited Airlines
2h 18mLAX-JAC
6/27Fri
nonstopUnited Airlines
2h 29mJAC-LAX
$320
6/20Fri
multi-stopUnited Airlines
6h 24mLAX-JAC
6/27Fri
nonstopUnited Airlines
2h 29mJAC-LAX
$330
6/20Fri
nonstopAlaska Airlines
2h 07mSFO-GEG
6/29Sun
multi-stopAlaska Airlines
3h 43mGEG-SFO
$335
6/20Fri
multi-stopAlaska Airlines
3h 49mSFO-GEG
6/29Sun
multi-stopAlaska Airlines
3h 43mGEG-SFO
$344

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Everything you need to know for your flight to Idaho

Cabin class types available on flights to California

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

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