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$34+ 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LAX
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$68
(Mytrip)

One-way from

$34
(FlightHub)

Popular in

March

Cheapest in

April

Average price

$274

Good round-trip deal

$90 or less

Good one-way deal

$98 or less
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. 1% potential increase in price ($2 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 July 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 July 30, 2025.

This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/42:16 pmBOI - LAS
Nonstop1h 51mSpirit Airlines
Sat 9/610:26 amLAS - BOI
Nonstop1h 55mSpirit Airlines
Deal found 7/30$68
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2912:25 pmGEG - LAX
Nonstop2h 39mAllegiant Air
Mon 9/19:00 amLAX - GEG
Nonstop2h 35mAllegiant Air
Deal found 7/30$78
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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 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 7/30$89
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/29:04 pmGEG - LAS
Nonstop2h 14mAllegiant Air
Sun 11/95:46 pmLAS - GEG
Nonstop2h 26mAllegiant Air
Deal found 7/30$93
This Booking.com deal was found by Cheapflights users on 7/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:06 pmBOI - LAS
Nonstop1h 50mMultiple Airlines
Fri 11/211:00 pmLAS - BOI
Nonstop1h 52mMultiple Airlines
Deal found 7/28$96
This Gotogate deal was found by Cheapflights users on 7/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:37 pmBOI - SNA
Nonstop2h 10mAllegiant Air
Mon 9/222:43 pmSNA - BOI
Nonstop2h 04mAllegiant Air
Deal found 7/29$108
This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/62:16 pmBOI - SNA
1 stop8h 49mSpirit Airlines
Mon 9/226:45 amSNA - BOI
1 stop12h 36mSpirit Airlines
Deal found 7/28$117
This Booking.com deal was found by Cheapflights users on 7/30. 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 9/182:16 pmBOI - SAN
1 stop10h 18mSpirit Airlines
Mon 9/226:15 amSAN - BOI
1 stop13h 16mSpirit Airlines
Deal found 7/30$125
This Flightnetwork deal was found by Cheapflights users on 7/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:37 pmBOI - SNA
Nonstop2h 10mMultiple Airlines
Mon 9/226:45 amSNA - BOI
1 stop12h 36mMultiple Airlines
Deal found 7/28$128
This FlightHub deal was found by Cheapflights users on 7/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:06 pmBOI - SMF
1 stop4h 28mSpirit Airlines
Mon 8/256:30 amSMF - BOI
1 stop9h 41mSpirit Airlines
Deal found 7/27$131
This Southwest deal was found by Cheapflights users on 7/28. 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 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 7/28$131
This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:25 amGEG - LAX
Nonstop2h 48mHawaiian Airlines
Tue 9/27:50 pmLAX - GEG
Nonstop2h 35mHawaiian Airlines
Deal found 7/30$133

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 July 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

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Thu 9/4

2:16 pm-3:07 pm

Nonstop1h 51m

Las Vegas Harry Reid Intl

Sat 9/6

10:26 am-1:21 pm

Nonstop1h 55m

$68

SpokaneLos Angeles

GEG - LAX

GEGLAX

Spokane

Fri 8/29

12:25 pm-3:04 pm

Nonstop2h 39m

Los Angeles

Mon 9/1

9:00 am-11:35 am

Nonstop2h 35m

$78

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Thu 8/28

6:06 pm-6:56 pm

Nonstop1h 50m

Las Vegas Harry Reid Intl

Fri 11/21

1:00 pm-3:52 pm

Nonstop1h 52m

$96

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Sun 10/19

9:08 pm-11:22 pm

Nonstop2h 14m

Las Vegas Harry Reid Intl

Thu 10/23

5:55 pm-8:18 pm

Nonstop2h 23m

$103

BoiseSanta Ana

BOI - SNA

BOISNA

Boise Air Term. Gowen Fld

Fri 9/19

6:37 pm-7:47 pm

Nonstop2h 10m

Santa Ana J. Wayne/Orange Cnty

Mon 9/22

2:43 pm-5:47 pm

Nonstop2h 04m

$108

BoiseSanta Ana

BOI - SNA

BOISNA

Boise Air Term. Gowen Fld

Sat 9/6

2:16 pm-10:05 pm

1 stop8h 49m

Santa Ana J. Wayne/Orange Cnty

Mon 9/22

6:45 am-8:21 pm

1 stop12h 36m

$117

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Thu 9/18

2:16 pm-11:34 pm

1 stop10h 18m

San Diego

Mon 9/22

6:15 am-8:31 pm

1 stop13h 16m

$125

BoiseSanta Ana

BOI - SNA

BOISNA

Boise Air Term. Gowen Fld

Fri 9/19

6:37 pm-7:47 pm

Nonstop2h 10m

Santa Ana J. Wayne/Orange Cnty

Mon 9/22

6:45 am-8:21 pm

1 stop12h 36m

$128

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Wed 9/10

6:00 am-6:45 am

Nonstop1h 45m

Las Vegas Harry Reid Intl

Mon 9/15

9:40 pm-12:25 am

Nonstop1h 45m

$131

BoiseSacramento

BOI - SMF

BOISMF

Boise Air Term. Gowen Fld

Thu 8/21

6:06 pm-9:34 pm

1 stop4h 28m

Sacramento Intl

Mon 8/25

6:30 am-5:11 pm

1 stop9h 41m

$131

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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, 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 $326). 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 July 30, 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 July 30, 2025.

The most flights from USID to USCA are scheduled on a Monday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 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 July 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
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 43 times in the past calendar month.

  • 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 $34 on Spirit Airlines. Other airlines that offer cheap prices include Allegiant Air from $47 and Alaska Airlines from $63 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 $326). 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

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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 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$50Average$173FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$73Average$250FlexibilityNo cancel feeOn-time85%
Avelo AirlinesCheapest$78Average$131FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$78Average$398FlexibilityNo cancel feeOn-timeN/A
Allegiant AirCheapest$90Average$184FlexibilityNo cancel feeOn-time88%
Alaska AirlinesCheapest$143Average$311FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$147Average$371FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$149Average$316FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$246Average$369FlexibilityNo cancel feeOn-time71%

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