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$39+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LAX
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$117
(United Airlines)

One-way from

$39
(Kiwi.com)

Popular in

March

Cheapest in

April

Average price

$257

Good round-trip deal

$166 or less

Good one-way deal

$84 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Los Angeles flights.
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From Idaho to California
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One-way flight from Idaho to California
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Highest demand for flights based on searches. 2% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Idaho to California.
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Price to beat on a one-way flight from Idaho to California.
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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 October 30, 2025.

This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 12/612:33 pmGEG - SFO
Nonstop2h 32mUnited Airlines
Wed 12/109:29 amSFO - GEG
Nonstop2h 23mUnited Airlines
Deal found 10/29$117
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Mon 12/810:41 pmBOI - LAS
Nonstop1h 49mMultiple Airlines
Thu 12/1112:59 amLAS - BOI
1 stop9h 50mMultiple Airlines
Deal found 10/30$119
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/269:22 pmBOI - LAS
Nonstop1h 48mMultiple Airlines
Wed 12/37:24 pmLAS - BOI
1 stop15h 25mMultiple Airlines
Deal found 10/29$122
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/510:41 pmBOI - LAS
Nonstop1h 49mMultiple Airlines
Thu 12/1112:59 amLAS - BOI
1 stop9h 50mMultiple Airlines
Deal found 10/28$124
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Tue 12/21:25 pmBOI - LAS
1 stop7h 11mMultiple Airlines
Fri 12/512:51 pmLAS - BOI
Nonstop1h 53mMultiple Airlines
Deal found 10/29$135
This Booking.com deal was found by Cheapflights users on 10/29. 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 12/510:41 pmBOI - LAS
Nonstop1h 49mMultiple Airlines
Sat 12/612:59 amLAS - BOI
1 stop9h 50mMultiple Airlines
Deal found 10/29$136
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Mon 12/1511:14 amBOI - LAS
Nonstop2h 00mMultiple Airlines
Fri 12/1912:51 pmLAS - BOI
Nonstop1h 53mMultiple Airlines
Deal found 10/29$137
This Booking.com deal was found by Cheapflights users on 10/29. 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.
Thu 12/119:13 pmGEG - LAS
Nonstop2h 23mMultiple Airlines
Sun 12/146:30 amLAS - GEG
1 stop10h 32mMultiple Airlines
Deal found 10/29$137
This Delta deal was found by Cheapflights users on 10/28. 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.
Fri 12/124:35 pmGEG - SFO
1 stop7h 28mDelta
Sun 12/147:08 pmSFO - GEG
1 stop4h 51mDelta
Deal found 10/28$137
This Booking.com deal was found by Cheapflights users on 10/30. 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.
Thu 12/412:08 pmGEG - ONT
1 stop26h 17mFrontier
Sat 12/133:20 pmONT - GEG
1 stop19h 53mFrontier
Deal found 10/30$139
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 11/69:16 pmGEG - LAS
Nonstop2h 16mAllegiant Air
Thu 11/136:00 pmLAS - GEG
Nonstop2h 26mAllegiant Air
Deal found 10/28$141
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Mon 12/17:54 pmGEG - LAS
Nonstop2h 18mMultiple Airlines
Fri 12/57:00 amLAS - GEG
1 stop4h 40mMultiple Airlines
Deal found 10/28$142

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 October 30, 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

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Sat 12/6

12:33 pm-3:05 pm

Nonstop2h 32m

San Francisco

Wed 12/10

9:29 am-11:52 am

Nonstop2h 23m

$117

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Sat 12/6

6:05 am-12:59 pm

1 stop6h 54m

San Francisco

Wed 12/10

7:00 pm-11:59 pm

1 stop4h 59m

$137

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Fri 1/9

4:59 pm-7:12 pm

Nonstop2h 13m

San Francisco

Wed 1/14

1:10 pm-3:25 pm

Nonstop2h 15m

$137

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Fri 1/9

7:10 am-1:38 pm

1 stop6h 28m

San Francisco

Wed 1/14

6:32 pm-12:08 am

1 stop5h 36m

$137

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Fri 1/16

1:15 pm-6:18 pm

1 stop5h 03m

San Francisco

Fri 1/23

4:40 pm-8:58 pm

1 stop4h 18m

$137

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Fri 1/9

9:20 am-1:38 pm

1 stop4h 18m

San Francisco

Mon 1/12

2:39 pm-8:58 pm

1 stop6h 19m

$137

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Fri 12/12

7:17 pm-12:03 am

1 stop4h 46m

San Francisco

Sun 1/11

6:05 am-10:39 am

1 stop4h 34m

$137

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Mon 12/8

2:30 pm-7:10 pm

2 stops5h 40m

Las Vegas Harry Reid Intl

Fri 12/12

5:15 pm-12:35 am

1 stop6h 20m

$142

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Tue 1/6

6:55 am-8:21 am

Nonstop2h 26m

San Diego

Thu 1/8

6:03 pm-11:58 pm

1 stop4h 55m

$147

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Thu 2/5

1:55 pm-7:19 pm

1 stop6h 24m

San Diego

Mon 2/23

7:46 pm-10:56 pm

Nonstop2h 10m

$147

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 60 results
1
2
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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, April is the cheapest month in which you can book a flight from Idaho to California (average of $60). Flying from Idaho to California in December is currently the most expensive (average of $128). 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 October 30, 2025.

When flying from Idaho to California, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 26% versus a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Idaho to California. Price data was last updated on October 26, 2025.

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

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 October 30, 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
11,215 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

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
11,215 reviews
Alaska Airlines
8.0
Very good
11,215 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

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
4,242 reviews
Alaska Airlines
8.0
Very good
11,215 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

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
7.9
Good
7,996 reviews
Alaska Airlines
8.0
Very good
11,215 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

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
8,998 reviews
Alaska Airlines
8.0
Very good
11,215 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

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
694 reviews
Alaska Airlines
8.0
Very good
11,215 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.0

Boarding

8.1

Overall

8.0

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 29 times in the past calendar month.

  • How long is the flight from Idaho to California?

    Airlines like United Airlines, Delta, and Southwest fly from Idaho to California in about 2h 32m. The time it takes to get you to your destination can typically vary by up to 4h 22m. There are 733 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 $58 on Alaska Airlines. Other airlines that offer cheap prices include United Airlines from $59 and Southwest from $64 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, April is the cheapest month in which you can book a flight from Idaho to California (average of $60). Flying from Idaho to California in December is currently the most expensive (average of $128). 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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Top 8 airlines flying from Idaho to California

Discover the top 8 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$50Average$172FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$73Average$248FlexibilityNo cancel feeOn-time85%
DeltaCheapest$78Average$384FlexibilityNo cancel feeOn-timeN/A
Allegiant AirCheapest$90Average$175FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$133Average$365FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$137Average$305FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$147Average$318FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$172Average$364FlexibilityNo cancel feeOn-time71%

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