HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
California

$35+ Cheap flights from Idaho to California

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LAX
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to California with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Idaho to California

Keep the following information in mind while searching for Idaho to California flight deals. Data was last updated September 14, 2025.

Round-trip from

$80
(Cheapflightsfares)

One-way from

$35
(Kiwi.com)

Popular in

March

Cheapest in

April

Average price

$250

Good round-trip deal

$154 or less

Good one-way deal

$68 or less
From Idaho to California
Search Deals
One-way flight from Idaho to California
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($2 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 September 2025
Search Deals
Price to beat on a round-trip flight from Idaho to California.
Search Deals
Price to beat on a one-way flight from Idaho to California.
Search Deals

Find flight deals from Idaho to California

Cheapest flights from Idaho to California
Explore the most affordable flight options available from Idaho to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:41 pmBOI - LAS
Nonstop1h 49mAllegiant Air
Fri 12/1212:51 pmLAS - BOI
Nonstop1h 53mAllegiant Air
Deal found 9/12$80
This Southwest deal was found by Cheapflights users on 9/12. 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.
Tue 11/1112:05 pmBOI - LAS
Nonstop1h 50mSouthwest
Sat 11/157:35 amLAS - BOI
Nonstop1h 45mSouthwest
Deal found 9/12$89
This Southwest deal was found by Cheapflights users on 9/13. 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.
Tue 10/147:20 pmBOI - LAS
Nonstop1h 45mSouthwest
Tue 10/217:45 amLAS - BOI
1 stop5h 40mSouthwest
Deal found 9/13$94
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/269:26 pmBOI - LAS
Nonstop1h 57mSpirit Airlines
Sat 10/410:26 amLAS - BOI
Nonstop1h 55mSpirit Airlines
Deal found 9/11$97
This Netflights deal was found by Cheapflights users on 9/12. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/43:37 pmBOI - SFO
Nonstop1h 50mAlaska Airlines
Mon 10/68:00 amSFO - BOI
Nonstop1h 39mAlaska Airlines
Deal found 9/12$110
This Hawaiian Airlines deal was found by Cheapflights users on 9/12. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/143:37 pmBOI - SFO
Nonstop1h 50mHawaiian Airlines
Sat 10/188:00 amSFO - BOI
Nonstop1h 39mHawaiian Airlines
Deal found 9/12$113
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/42:16 pmBOI - LAS
Nonstop1h 51mMultiple Airlines
Tue 10/78:14 pmLAS - BOI
Nonstop2h 01mMultiple Airlines
Deal found 9/13$114
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Fri 10/102:44 pmBOI - SFO
Nonstop1h 51mUnited Airlines
Sun 10/128:59 pmSFO - BOI
Nonstop1h 45mUnited Airlines
Deal found 9/13$115
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/42:16 pmBOI - LAS
Nonstop1h 51mMultiple Airlines
Wed 10/88:14 pmLAS - BOI
Nonstop2h 01mMultiple Airlines
Deal found 9/13$115
This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:08 pmGEG - LAS
Nonstop2h 14mAllegiant Air
Thu 10/95:55 pmLAS - GEG
Nonstop2h 23mAllegiant Air
Deal found 9/12$115
This Trip.com deal was found by Cheapflights users on 9/12. 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.
Sun 9/219:06 pmGEG - LAS
Nonstop2h 19mAllegiant Air
Thu 9/255:56 pmLAS - GEG
Nonstop2h 20mAllegiant Air
Deal found 9/12$117
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/272:16 pmBOI - LAS
Nonstop1h 51mSpirit Airlines
Mon 9/295:36 pmLAS - BOI
Nonstop1h 55mSpirit Airlines
Deal found 9/14$121

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to California 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 September 14, 2025.
Use the filters below to find and compare flights from Idaho to California that are best for you.

Fly from

Idaho

Fly to

California

Route

Depart

Return

Price

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Tue 10/14

3:37 pm-4:27 pm

Nonstop1h 50m

San Francisco

Sat 10/18

8:00 am-10:39 am

Nonstop1h 39m

$115

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Fri 10/10

2:44 pm-3:35 pm

Nonstop1h 51m

San Francisco

Sun 10/12

8:59 pm-11:44 pm

Nonstop1h 45m

$115

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Wed 11/5

6:20 am-7:14 am

Nonstop1h 54m

San Francisco

Thu 11/6

8:50 pm-11:28 pm

Nonstop1h 38m

$115

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Sat 10/18

3:37 pm-4:27 pm

Nonstop1h 50m

San Francisco

Tue 10/21

8:00 am-10:39 am

Nonstop1h 39m

$115

BoiseBurbank

BOI - BUR

BOIBUR

Boise Air Term. Gowen Fld

Wed 10/15

5:30 pm-9:20 pm

1 stop4h 50m

Burbank Bob Hope

Wed 10/22

6:15 pm-11:05 pm

1 stop3h 50m

$124

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Sun 12/7

8:10 pm-9:10 pm

Nonstop2h 00m

Las Vegas Harry Reid Intl

Tue 12/9

6:45 am-3:05 pm

2 stops7h 20m

$129

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Sat 10/18

5:55 pm-10:16 pm

1 stop5h 21m

San Francisco

Tue 10/21

10:30 am-6:51 pm

1 stop7h 21m

$137

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Tue 3/10

8:40 am-1:17 pm

1 stop5h 37m

San Francisco

Wed 3/11

10:31 am-6:25 pm

1 stop6h 54m

$137

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 11/11

6:10 am-7:10 am

Nonstop2h 00m

Las Vegas Harry Reid Intl

Sat 11/15

11:55 am-2:50 pm

Nonstop1h 55m

$137

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 11/11

1:40 pm-2:36 pm

Nonstop1h 56m

Las Vegas Harry Reid Intl

Sat 11/15

8:50 pm-11:49 pm

Nonstop1h 59m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Idaho to California

Have a flexible travel schedule? Discover the best time to fly to California from Idaho 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 Idaho to California

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

Currently, January is the cheapest month in which you can book a flight from Idaho to California (average of $246). Flying from Idaho to California in March is currently the most expensive (average of $325). 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 ID to CA?

Find hourly flight availability from Idaho to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to California as you normally would.

Weekly flight availability from Idaho to California

Explore weekly flight availability from Idaho to California. 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 September 14, 2025.

The most flights from USID to USCA are scheduled on a Monday (29 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (27 on average).

How much does it cost to fly round-trip from Idaho to California?

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. 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 California. Reviews last updated September 14, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Idaho to California by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,245 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,956 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,931 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Allegiant Air
7.2
Good
699 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Idaho to California. 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 Idaho to California flight route?

    Flights from Idaho to California have been viewed 39 times in the past calendar month.

  • How long is the flight from Idaho to California?

    Airlines like Hawaiian Airlines, United Airlines, and Southwest fly from Idaho to California in about 1h 50m. The time it takes to get you to your destination can typically vary by up to 3h. There are 522 mi between Idaho and California. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $42 on Southwest. Other airlines that offer cheap prices include Allegiant Air from $49 and Alaska Airlines from $52 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to California 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 Idaho to California?

    Currently, January is the cheapest month in which you can book a flight from Idaho to California (average of $246). Flying from Idaho to California in March is currently the most expensive (average of $325). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to California

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
John F Kennedy Intl to Los Angeles flights
Dallas/Fort Worth to Las Vegas flights
LaGuardia to Dallas/Fort Worth flights
John F Kennedy Intl to Las Vegas flights
Dallas/Fort Worth to John F Kennedy Intl flights
John F Kennedy Intl to O'Hare Intl flights
John F Kennedy Intl to Miami flights
Dallas/Fort Worth to O'Hare Intl flights
Newark to Fort Lauderdale flights
San Francisco to John F Kennedy Intl flights
Dallas/Fort Worth to LaGuardia flights
LaGuardia to O'Hare Intl flights
Newark to Las Vegas flights
Seattle to Las Vegas flights
O'Hare Intl to LaGuardia flights
Newark to O'Hare Intl flights
LaGuardia to Fort Lauderdale flights
Newark to Miami flights
Los Angeles to Newark flights
LaGuardia to Miami flights
Seattle to Los Angeles flights
O'Hare Intl to Las Vegas flights
John F Kennedy Intl to Dallas/Fort Worth flights
Dallas/Fort Worth to Los Angeles flights
O'Hare Intl to John F Kennedy Intl flights
Los Angeles to Dallas/Fort Worth flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Atlanta flights
O'Hare Intl to Newark flights
John F Kennedy Intl to San Francisco flights
Los Angeles to Seattle flights
O'Hare Intl to Dallas/Fort Worth flights
Seattle to Dallas/Fort Worth flights
Dallas/Fort Worth to Denver flights
Dallas/Fort Worth to Newark flights
Dallas/Fort Worth to Seattle flights
San Francisco to Las Vegas flights
John F Kennedy Intl to Orlando flights
Los Angeles to San Francisco flights
Los Angeles to O'Hare Intl flights
Los Angeles to LaGuardia flights
San Francisco to Newark flights
Newark to Los Angeles flights
Atlanta to LaGuardia flights
Newark to San Francisco flights
Dulles Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Fort Lauderdale flights
LaGuardia to Los Angeles flights
Newark to Orlando flights

Top 9 airlines flying from Idaho to California

Discover the top 9 airlines that operate flights from Idaho to California. 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 September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$50Average$180FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$68Average$243FlexibilityNo cancel feeOn-time85%
DeltaCheapest$78Average$386FlexibilityNo cancel feeOn-timeN/A
Allegiant AirCheapest$90Average$179FlexibilityNo cancel feeOn-time88%
Avelo AirlinesCheapest$115Average$134FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$138Average$316FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$147Average$379FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$147Average$322FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$172Average$364FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.