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Idaho

$68+ Cheap flights from California to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BOI
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from California to Idaho

Cheapest flights from California to Idaho
Explore the most affordable flight options available from California to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This Booking.com deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:51 pmLAS - BOI
Nonstop1h 53mAllegiant Air
Mon 12/2210:41 pmBOI - LAS
Nonstop1h 49mAllegiant Air
Deal found 12/13$150
This Trip.com deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:59 amLAS - BOI
1 stop10h 00mMultiple Airlines
Mon 12/2210:41 pmBOI - LAS
Nonstop1h 49mMultiple Airlines
Deal found 12/13$204
This Expedia deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:59 amLAS - BOI
1 stop9h 44mFrontier
Thu 1/112:38 pmBOI - LAS
1 stop12h 04mFrontier
Deal found 12/13$212
This Alaska Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:25 pmSFO - BOI
Nonstop1h 42mAlaska Airlines
Thu 1/88:10 amBOI - SFO
Nonstop2h 06mAlaska Airlines
Deal found 12/15$247
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:20 pmLAX - BOI
1 stop16h 44mMultiple Airlines
Mon 1/59:46 pmBOI - LAX
1 stop13h 50mMultiple Airlines
Deal found 12/14$247
This Delta deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/285:10 pmONT - BOI
1 stop6h 09mDelta
Mon 1/55:15 pmBOI - ONT
1 stop6h 36mDelta
Deal found 12/14$272
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:51 pmLAS - BOI
Nonstop1h 53mMultiple Airlines
Sun 12/219:30 pmBOI - LAS
1 stop13h 45mMultiple Airlines
Deal found 12/14$277
This Southwest deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:40 pmSAN - BOI
1 stop6h 50mSouthwest
Mon 1/510:50 amBOI - SAN
1 stop5h 55mSouthwest
Deal found 12/13$286
This United Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:21 amLAX - JAC
1 stop6h 57mUnited Airlines
Wed 12/312:15 pmJAC - LAX
Nonstop2h 54mUnited Airlines
Deal found 12/13$289
This Alaska Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:33 pmSAN - BOI
Nonstop2h 26mAlaska Airlines
Mon 1/59:00 amBOI - SAN
1 stop24h 45mAlaska Airlines
Deal found 12/13$291
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/179:15 pmLAS - BOI
1 stop15h 37mMultiple Airlines
Fri 12/1910:41 pmBOI - LAS
Nonstop1h 49mMultiple Airlines
Deal found 12/14$295
This Delta deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:30 amLAX - GEG
1 stop6h 36mDelta
Tue 1/67:00 amGEG - LAX
Nonstop2h 59mDelta
Deal found 12/13$297

Find flight deals from California to Idaho

Keep the following information in mind while searching for California to Idaho flight deals. Data was last updated December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$135
(Kiwi.com)

One-way from

$68
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$367

Good round-trip deal

$157 or less

Good one-way deal

$78 or less
Provider with most accurate pricing for Los Angeles-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Boise Air Term. Gowen Fld flights.
Search Deals
From California to Idaho
Search Deals
One-way flight from California to Idaho
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from California to Idaho.
Search Deals
Price to beat on a one-way flight from California to Idaho.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from California to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 15, 2025.
Use the filters below to find and compare flights from California to Idaho that are best for you.

Fly from

California

Fly to

Idaho

Route

Depart

Return

Price

Las VegasBoise

LAS - BOI

LASBOI

Las Vegas Harry Reid Intl

Thu 1/8

8:50 am-11:48 am

Nonstop1h 58m

Boise Air Term. Gowen Fld

Mon 1/12

8:58 pm-9:55 pm

Nonstop1h 57m

$137

Las VegasBoise

LAS - BOI

LASBOI

Las Vegas Harry Reid Intl

Thu 1/8

8:50 am-11:48 am

Nonstop1h 58m

Boise Air Term. Gowen Fld

Sun 1/11

8:58 pm-9:55 pm

Nonstop1h 57m

$137

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Thu 1/29

8:27 am-11:25 am

Nonstop1h 58m

Boise Air Term. Gowen Fld

Sun 2/1

7:45 am-9:00 am

Nonstop2h 15m

$147

Las VegasBoise

LAS - BOI

LASBOI

Las Vegas Harry Reid Intl

Thu 1/22

7:45 pm-10:30 pm

Nonstop1h 45m

Boise Air Term. Gowen Fld

Sun 1/25

5:35 pm-10:00 pm

1 stop5h 25m

$147

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Wed 1/7

3:30 pm-9:58 pm

1 stop5h 28m

Boise Air Term. Gowen Fld

Wed 1/14

9:15 am-1:56 pm

1 stop5h 41m

$147

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Wed 1/7

6:35 pm-9:23 pm

Nonstop1h 48m

Boise Air Term. Gowen Fld

Thu 1/8

7:05 pm-8:10 pm

Nonstop2h 05m

$147

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Sat 1/10

6:35 pm-9:23 pm

Nonstop1h 48m

Boise Air Term. Gowen Fld

Sat 1/17

2:20 pm-3:29 pm

Nonstop2h 09m

$147

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Thu 1/8

7:24 pm-10:09 pm

Nonstop1h 45m

Boise Air Term. Gowen Fld

Thu 1/15

8:10 am-9:16 am

Nonstop2h 06m

$147

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Thu 1/22

7:24 pm-10:09 pm

Nonstop1h 45m

Boise Air Term. Gowen Fld

Sun 1/25

8:10 am-9:16 am

Nonstop2h 06m

$147

Las VegasBoise

LAS - BOI

LASBOI

Las Vegas Harry Reid Intl

Fri 1/16

5:42 pm-11:59 pm

1 stop5h 17m

Boise Air Term. Gowen Fld

Mon 1/19

8:58 pm-9:55 pm

Nonstop1h 57m

$155

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 60 results
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Best time to book a flight from California to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from California with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from California to Idaho

What is the cheapest month to book a flight from California to Idaho?

Currently, November is the cheapest month in which you can book a flight from California to Idaho (average of $60). Flying from California to Idaho in December is currently the most expensive (average of $154). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CA to ID?

Find hourly flight availability from California to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

A simple way to save on the total cost of your ticket is to fly from California to Idaho in the evening. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from California to Idaho?

Use this chart to determine the cheapest time to fly round-trip from California to Idaho. Price data was last updated on December 13, 2025.

Travelers seeking maximum savings on their California to Idaho flight should consider departing on Friday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from California to Idaho

Explore weekly flight availability from California to Idaho. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 15, 2025.

The most flights from USCA to USID are scheduled on a Sunday (29 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (12 on average).

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated December 15, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from California to Idaho to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,452 reviews

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,452 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
7.9
Good
4,249 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,092 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Allegiant Air
7.2
Good
700 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Related info for your journey

Find useful and relevant information for your journey from California to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this California to Idaho flight route?

    The California to Idaho flight path was viewed by 58 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from California to Idaho?

    There are many flights that can get you from California to Idaho in 1h 45m. Fly via Alaska Airlines, United Airlines, or Southwest to get the fastest option. The distance between California and Idaho is about 520 mi. Most flights are nonstop.

  • What are the cheapest airlines to fly from California to Idaho one-way?

    $36 is the cheapest one-way deal found within the past few days, from Allegiant Air. You may also be able to find cheap deals on Avelo Airlines and Spirit Airlines, with prices starting from $37 and $47, respectively.

  • Can I find deals for flights from California to Idaho that include hotel bookings?

    Yes. In addition to deals on California to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from California to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Idaho.

  • Can I find deals for business class flights from California to Idaho?

    Yes. Cheapflights offers flight deals from California to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from California to Idaho?

    Currently, November is the cheapest month in which you can book a flight from California to Idaho (average of $60). Flying from California to Idaho in December is currently the most expensive (average of $154). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for California to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from California to Idaho

Discover the top 8 airlines that operate flights from California to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$78Average$275FlexibilityNo cancel feeOn-time85%
DeltaCheapest$79Average$394FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$82Average$182FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$98Average$203FlexibilityNo cancel feeOn-time88%
Alaska AirlinesCheapest$137Average$338FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$137Average$392FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$147Average$322FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$258Average$536FlexibilityNo cancel feeOn-time71%

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