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$38+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LAX
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap 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 January 28, 2026.

This Gotogate deal was found by Cheapflights users on 1/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/19:15 pm
GEG
-
LAS
Nonstop2h 21m
Allegiant Air
Thu 3/126:07 pm
LAS
-
GEG
Nonstop2h 24m
Allegiant Air
Deal found 1/25$104
This Booking.com deal was found by Cheapflights users on 1/27. 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.
Sun 3/159:21 pm
GEG
-
LAS
Nonstop2h 17m
Allegiant Air
Thu 3/196:07 pm
LAS
-
GEG
Nonstop2h 24m
Allegiant Air
Deal found 1/27$106
This Booking.com deal was found by Cheapflights users on 1/27. 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.
Sun 3/89:12 pm
GEG
-
LAS
Nonstop2h 21m
Allegiant Air
Thu 3/126:07 pm
LAS
-
GEG
Nonstop2h 24m
Allegiant Air
Deal found 1/27$107
This Booking.com deal was found by Cheapflights users on 1/26. 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.
Sun 2/159:17 pm
GEG
-
LAS
Nonstop2h 21m
Allegiant Air
Thu 2/196:08 pm
LAS
-
GEG
Nonstop2h 24m
Allegiant Air
Deal found 1/26$117
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Sun 2/229:17 pm
GEG
-
LAS
Nonstop2h 21m
Allegiant Air
Thu 3/56:05 pm
LAS
-
GEG
Nonstop2h 24m
Allegiant Air
Deal found 1/28$121
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 2/18:58 pm
GEG
-
LAS
Nonstop2h 20m
Allegiant Air
Thu 2/55:31 pm
LAS
-
GEG
Nonstop2h 37m
Allegiant Air
Deal found 1/27$127
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Thu 2/1912:36 pm
BOI
-
SAN
1 stop12h 32m
Frontier
Sat 2/216:25 am
SAN
-
BOI
1 stop27h 46m
Frontier
Deal found 1/25$131
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 2/229:17 pm
GEG
-
LAS
Nonstop2h 21m
Multiple Airlines
Sat 2/286:00 am
LAS
-
GEG
1 stop5h 06m
Multiple Airlines
Deal found 1/26$136
This Delta deal was found by Cheapflights users on 1/26. 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.
Mon 3/95:52 am
BOI
-
LAS
1 stop4h 55m
Delta
Thu 3/126:00 am
LAS
-
BOI
1 stop6h 05m
Delta
Deal found 1/26$137
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 3/19:15 pm
GEG
-
LAS
Nonstop2h 21m
Multiple Airlines
Wed 3/46:00 am
LAS
-
GEG
1 stop5h 06m
Multiple Airlines
Deal found 1/27$138
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Thu 5/79:19 pm
GEG
-
LAS
Nonstop2h 16m
Allegiant Air
Thu 5/146:03 pm
LAS
-
GEG
Nonstop2h 26m
Allegiant Air
Deal found 1/27$139
This Delta deal was found by Cheapflights users on 1/26. 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 5/58:00 am
BOI
-
LAS
1 stop5h 06m
Delta
Mon 5/116:00 am
LAS
-
BOI
1 stop5h 05m
Delta
Deal found 1/26$147

Find flight deals from Idaho to California

Keep the following information in mind while searching for Idaho to California flight deals. Data was last updated January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$104
(Gotogate)

One-way from

$38
(Super.com)

Popular in

March

Cheapest in

April

Average price

$250

Good round-trip deal

$166 or less

Good one-way deal

$81 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Los Angeles flights.
Search Deals
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 ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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

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 January 28, 2026.
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

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Sat 3/7

5:35 am-8:24 am

1 stop3h 49m

Las Vegas Harry Reid Intl

Thu 3/12

6:00 am-1:05 pm

1 stop6h 05m

$147

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Thu 4/16

12:30 pm-1:32 pm

Nonstop2h 02m

San Francisco

Sun 4/19

8:10 am-11:06 am

Nonstop1h 56m

$157

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Fri 3/6

1:25 pm-2:26 pm

Nonstop2h 01m

San Francisco

Mon 3/9

7:31 pm-10:15 pm

Nonstop1h 44m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Wed 2/25

7:05 am-1:15 pm

1 stop6h 10m

San Diego

Tue 3/3

3:55 pm-8:50 pm

1 stop4h 55m

$157

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Fri 4/3

9:26 am-10:30 am

Nonstop2h 04m

San Francisco

Mon 4/6

8:10 am-11:06 am

Nonstop1h 56m

$157

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

Tue 4/21

7:40 am-8:40 am

Nonstop2h 00m

San Francisco

Wed 4/22

7:44 pm-10:27 pm

Nonstop1h 43m

$157

BoiseLos Angeles

BOI - LAX

BOILAX

Boise Air Term. Gowen Fld

Sat 4/18

4:55 pm-6:14 pm

Nonstop2h 19m

Los Angeles

Sat 4/25

7:57 pm-11:00 pm

Nonstop2h 03m

$157

BoiseLos Angeles

BOI - LAX

BOILAX

Boise Air Term. Gowen Fld

Wed 3/4

7:11 am-8:34 am

Nonstop2h 23m

Los Angeles

Sat 3/7

6:45 pm-9:59 pm

Nonstop2h 14m

$157

BoiseLos Angeles

BOI - LAX

BOILAX

Boise Air Term. Gowen Fld

Tue 2/24

7:00 am-8:28 am

Nonstop2h 28m

Los Angeles

Tue 3/3

7:45 pm-10:45 pm

Nonstop2h 00m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Tue 3/3

12:00 pm-6:30 pm

1 stop6h 30m

San Diego

Wed 3/4

8:39 am-5:03 pm

1 stop8h 24m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 60 results
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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 November is currently the most expensive (average of $134). 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 January 28, 2026.

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 afternoon, which can drop the price by up to 19% versus a flight in the morning.

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 January 24, 2026.

Travelers seeking maximum savings on their Idaho to California flight should consider departing on Friday at noon 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.

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 January 28, 2026.

The most flights from USID to USCA are scheduled on a Monday (21 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (16 on average).

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 January 28, 2026.
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
11,805 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,805 reviews
Alaska Airlines
8.0
Very good
11,805 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,267 reviews
Alaska Airlines
8.0
Very good
11,805 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,124 reviews
Alaska Airlines
8.0
Very good
11,805 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,213 reviews
Alaska Airlines
8.0
Very good
11,805 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Allegiant Air
7.2
Good
706 reviews
Alaska Airlines
8.0
Very good
11,805 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 23 times in the past calendar month.

  • How long is the flight from Idaho to California?

    Airlines like Delta, United Airlines, and Alaska Airlines fly from Idaho to California in about 2h 01m. The time it takes to get you to your destination can typically vary by up to 1h 48m. 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 $32 on Spirit Airlines. Other airlines that offer cheap prices include Southwest from $60 and Allegiant Air from $65 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 November is currently the most expensive (average of $134). 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 Idaho to California

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$57Average$167FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$68Average$245FlexibilityNo cancel feeOn-time85%
DeltaCheapest$78Average$353FlexibilityNo cancel feeOn-timeN/A
Allegiant AirCheapest$80Average$177FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$108Average$367FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$131Average$308FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$147Average$307FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$172Average$516FlexibilityNo cancel feeOn-time71%

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