Idaho

$39+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BOI
jun. 17 — jun. 241
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Cheap flight deals from California to Idaho

Keep the following information in mind while searching for California to Idaho flight deals. Data was last updated junio 12, 2025.

Round-trip from

$78
(Gotogate)

One-way from

$39
(Booking.com)

Popular in

December

Cheapest in

October

Average price

$267

Good round-trip deal

$98 or less

Good one-way deal

$50 or less
From California to Idaho
One-way flight from California to Idaho
Highest demand for flights based on searches. 13% potential increase in price ($43 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in June 2025
Price to beat on a round-trip flight from California to Idaho.
Price to beat on a one-way flight from California to Idaho.

Find 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 junio 12, 2025.

This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/229:00 amLAX - GEG
Nonstop2h 35mAllegiant Air
lun. 8/2512:25 pmGEG - LAX
Nonstop2h 39mAllegiant Air
Deal found 6/11$78
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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.
vie. 9/192:43 pmSNA - BOI
Nonstop2h 04mAllegiant Air
lun. 9/226:37 pmBOI - SNA
Nonstop2h 10mAllegiant Air
Deal found 6/12$118
This Booking.com deal was found by Cheapflights users on 6/10. 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.
lun. 9/153:31 pmSNA - BOI
1 stop4h 13mMultiple Airlines
vie. 9/196:37 pmBOI - SNA
Nonstop2h 10mMultiple Airlines
Deal found 6/10$140
This SmartFares deal was found by Cheapflights users on 6/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/75:14 pmSFO - BOI
Nonstop1h 36mAlaska Airlines
mié. 9/1012:43 pmBOI - SFO
Nonstop1h 49mAlaska Airlines
Deal found 6/11$149
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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.
lun. 9/2211:58 amLAX - BOI
1 stop7h 46mSpirit Airlines
lun. 9/229:49 pmBOI - LAX
1 stop9h 29mSpirit Airlines
Deal found 6/12$153
This Booking.com deal was found by Cheapflights users on 6/9. 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.
lun. 7/148:15 amBUR - BOI
1 stop9h 37mSpirit Airlines
lun. 7/217:48 pmBOI - BUR
1 stop12h 32mSpirit Airlines
Deal found 6/9$155
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/204:52 pmSFO - GEG
1 stop7h 07mAlaska Airlines
mar. 9/239:54 amGEG - SFO
1 stop3h 38mAlaska Airlines
Deal found 6/11$156
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/236:59 pmLAX - GEG
Nonstop2h 27mDelta
sáb. 8/306:30 amGEG - LAX
Nonstop2h 56mDelta
Deal found 6/11$157
This United Airlines deal was found by Cheapflights users on 6/10. 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.
mié. 8/131:59 pmSFO - BOI
Nonstop1h 41mUnited Airlines
lun. 8/187:15 pmBOI - SFO
Nonstop1h 50mUnited Airlines
Deal found 6/10$157
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 7/510:18 pmLAX - GEG
1 stop10h 25mMultiple Airlines
vie. 7/185:52 pmGEG - LAX
Nonstop2h 39mMultiple Airlines
Deal found 6/11$159
This Delta deal was found by Cheapflights users on 6/9. 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.
vie. 7/44:55 pmBUR - BOI
1 stop5h 08mDelta
mar. 7/86:00 pmBOI - BUR
1 stop4h 48mDelta
Deal found 6/9$159
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/206:50 amSFO - GEG
1 stop6h 25mSouthwest
mar. 9/2312:05 pmGEG - SFO
2 stops9h 20mSouthwest
Deal found 6/11$162

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 junio 12, 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

Los AngelesSpokane

LAX - GEG

LAXGEG

Los Angeles

vie. 8/22

9:00 am-11:35 am

Nonstop2h 35m

Spokane

lun. 8/25

12:25 pm-3:04 pm

Nonstop2h 39m

$78

Santa AnaBoise

SNA - BOI

SNABOI

Santa Ana J. Wayne/Orange Cnty

vie. 9/19

2:43 pm-5:47 pm

Nonstop2h 04m

Boise Air Term. Gowen Fld

lun. 9/22

6:37 pm-7:47 pm

Nonstop2h 10m

$118

Santa AnaBoise

SNA - BOI

SNABOI

Santa Ana J. Wayne/Orange Cnty

lun. 9/15

3:31 pm-8:44 pm

1 stop4h 13m

Boise Air Term. Gowen Fld

vie. 9/19

6:37 pm-7:47 pm

Nonstop2h 10m

$140

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

dom. 9/7

5:14 pm-7:50 pm

Nonstop1h 36m

Boise Air Term. Gowen Fld

mié. 9/10

12:43 pm-1:32 pm

Nonstop1h 49m

$149

BurbankBoise

BUR - BOI

BURBOI

Burbank Bob Hope

lun. 7/14

8:15 am-6:52 pm

1 stop9h 37m

Boise Air Term. Gowen Fld

lun. 7/21

7:48 pm-7:20 am

1 stop12h 32m

$155

Los AngelesSpokane

LAX - GEG

LAXGEG

Los Angeles

sáb. 8/23

6:59 pm-9:26 pm

Nonstop2h 27m

Spokane

sáb. 8/30

6:30 am-9:26 am

Nonstop2h 56m

$157

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

mié. 8/13

1:59 pm-4:40 pm

Nonstop1h 41m

Boise Air Term. Gowen Fld

lun. 8/18

7:15 pm-8:05 pm

Nonstop1h 50m

$157

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

sáb. 8/16

7:49 pm-11:59 pm

1 stop4h 10m

Spokane

jue. 8/21

2:36 pm-4:57 pm

Nonstop2h 21m

$157

Los AngelesSpokane

LAX - GEG

LAXGEG

Los Angeles

sáb. 7/5

10:18 pm-8:43 am

1 stop10h 25m

Spokane

vie. 7/18

5:52 pm-8:31 pm

Nonstop2h 39m

$159

BurbankBoise

BUR - BOI

BURBOI

Burbank Bob Hope

vie. 7/4

4:55 pm-11:03 pm

1 stop5h 08m

Boise Air Term. Gowen Fld

mar. 7/8

6:00 pm-9:48 pm

1 stop4h 48m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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, October is the cheapest month in which you can book a flight from California to Idaho (average of $314). Flying from California to Idaho in June is currently the most expensive (average of $395). 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 junio 12, 2025.

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

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 junio 12, 2025.

The most flights from USCA to USID are scheduled on a Tuesday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 junio 12, 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.

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

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

    $39 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 Spirit Airlines and Alaska Airlines, with prices starting from $57 and $78, 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, October is the cheapest month in which you can book a flight from California to Idaho (average of $314). Flying from California to Idaho in June is currently the most expensive (average of $395). 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 California to Idaho

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from California to Idaho

Discover the top 9 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Avelo AirlinesCheapest$64Average$152FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$68Average$164FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$68Average$257FlexibilityNo cancel feeOn-time85%
DeltaCheapest$79Average$468FlexibilityNo cancel feeOn-timeN/A
Allegiant AirCheapest$98Average$196FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$148Average$426FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$152Average$323FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$156Average$348FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$198Average$435FlexibilityNo cancel feeOn-time71%

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