HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho

$44+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BOI
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from California to Idaho 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 California to Idaho

Discover tips and strategies to find the most affordable flight options for your journey from California (USCA) to Idaho (USID). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$108
(Cheapflightsfares)

One-way from

$44
(Cheapflightsfares)

Popular in

December

Cheapest in

October

Average price

$287

Good round-trip deal

$77 or less

Good one-way deal

$80 or less
Provider with most accurate pricing for Los Angeles-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Boise Air Term. Gowen Fld flights.
Search Deals
From California to Idaho
Search Deals
One-way flight from California to Idaho
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals
Price to beat on a round-trip flight from California to Idaho.
Search Deals
Price to beat on a one-way flight from California to Idaho.
Search Deals

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 January 30, 2025.

This FlightHub deal was found by Cheapflights users on 1/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/209:55 pmBUR - BOI
1 stop19h 51mSpirit Airlines
Sun 2/237:41 pmBOI - BUR
1 stop23h 50mSpirit Airlines
Deal found 1/30$130
This FlightHub deal was found by Cheapflights users on 1/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/217:42 amSMF - BOI
1 stop10h 04mSpirit Airlines
Mon 2/247:41 pmBOI - SMF
1 stop12h 06mSpirit Airlines
Deal found 1/30$157
This Delta deal was found by Cheapflights users on 1/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/141:21 pmBUR - BOI
1 stop4h 39mDelta
Mon 3/245:59 pmBOI - BUR
1 stop4h 53mDelta
Deal found 1/30$157
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/267:20 pmSMF - BOI
Nonstop1h 28mAlaska Airlines
Sat 3/291:49 pmBOI - SMF
Nonstop1h 35mAlaska Airlines
Deal found 1/30$162
This Alaska Airlines deal was found by Cheapflights users on 1/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/265:54 pmSFO - BOI
Nonstop1h 35mAlaska Airlines
Wed 3/52:46 pmBOI - SFO
1 stop6h 23mAlaska Airlines
Deal found 1/29$167
This Southwest deal was found by Cheapflights users on 1/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2011:55 amSMF - BOI
Nonstop1h 25mSouthwest
Fri 2/215:05 pmBOI - SMF
Nonstop1h 30mSouthwest
Deal found 1/29$167
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/264:20 pmBUR - BOI
1 stop5h 21mAlaska Airlines
Fri 2/281:14 pmBOI - BUR
Nonstop2h 06mAlaska Airlines
Deal found 1/30$167
This Cheapflightsfares deal was found by Cheapflights users on 1/30. 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.
Thu 3/65:45 amLAX - BOI
1 stop5h 47mSpirit Airlines
Sat 3/81:31 pmBOI - LAX
1 stop9h 08mSpirit Airlines
Deal found 1/30$168
This Southwest deal was found by Cheapflights users on 1/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/46:05 amSFO - BOI
1 stop5h 40mSouthwest
Tue 3/44:05 pmBOI - SFO
1 stop7h 10mSouthwest
Deal found 1/30$171
This Delta deal was found by Cheapflights users on 1/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/41:31 pmSFO - GEG
1 stop8h 01mDelta
Wed 3/123:25 pmGEG - SFO
1 stop6h 58mDelta
Deal found 1/30$177
This Southwest deal was found by Cheapflights users on 1/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/51:05 pmSFO - GEG
1 stop9h 00mSouthwest
Tue 3/1111:35 amGEG - SFO
2 stops6h 40mSouthwest
Deal found 1/30$182
This Expedia deal was found by Cheapflights users on 1/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/197:50 pmLAX - BOI
Nonstop2h 09mMultiple Airlines
Fri 2/217:41 pmBOI - LAX
1 stop3h 54mMultiple Airlines
Deal found 1/30$184

Find flights from California to Idaho within your budget

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BurbankBoise

BUR - BOI

BURBOI

Burbank Bob Hope

Thu 2/20

9:55 pm-6:46 pm

1 stop19h 51m

Boise Air Term. Gowen Fld

Sun 2/23

7:41 pm-6:31 pm

1 stop23h 50m

$130

BurbankBoise

BUR - BOI

BURBOI

Burbank Bob Hope

Fri 3/14

1:21 pm-7:00 pm

1 stop4h 39m

Boise Air Term. Gowen Fld

Mon 3/24

5:59 pm-9:52 pm

1 stop4h 53m

$157

SacramentoBoise

SMF - BOI

SMFBOI

Sacramento Intl

Fri 2/21

7:42 am-6:46 pm

1 stop10h 04m

Boise Air Term. Gowen Fld

Mon 2/24

7:41 pm-6:47 am

1 stop12h 06m

$157

SacramentoBoise

SMF - BOI

SMFBOI

Sacramento Intl

Wed 3/26

7:20 pm-9:48 pm

Nonstop1h 28m

Boise Air Term. Gowen Fld

Sat 3/29

1:49 pm-2:24 pm

Nonstop1h 35m

$162

SacramentoBoise

SMF - BOI

SMFBOI

Sacramento Intl

Thu 2/20

11:55 am-2:20 pm

Nonstop1h 25m

Boise Air Term. Gowen Fld

Fri 2/21

5:05 pm-5:35 pm

Nonstop1h 30m

$167

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Wed 2/26

5:54 pm-8:29 pm

Nonstop1h 35m

Boise Air Term. Gowen Fld

Wed 3/5

2:46 pm-8:09 pm

1 stop6h 23m

$167

BurbankBoise

BUR - BOI

BURBOI

Burbank Bob Hope

Wed 2/26

4:20 pm-10:41 pm

1 stop5h 21m

Boise Air Term. Gowen Fld

Fri 2/28

1:14 pm-2:20 pm

Nonstop2h 06m

$167

Los AngelesBoise

LAX - BOI

LAXBOI

Los Angeles

Thu 3/6

5:45 am-12:32 pm

1 stop5h 47m

Boise Air Term. Gowen Fld

Wed 3/12

1:31 pm-9:39 pm

1 stop9h 08m

$168

San FranciscoBoise

SFO - BOI

SFOBOI

San Francisco

Tue 3/4

6:05 am-12:45 pm

1 stop5h 40m

Boise Air Term. Gowen Fld

Tue 3/4

4:05 pm-10:15 pm

1 stop7h 10m

$171

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

Tue 3/11

4:40 pm-10:49 pm

1 stop6h 09m

Spokane

Tue 3/18

6:56 pm-11:59 pm

1 stop5h 03m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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

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.

Travel insights for flights from California to Idaho

Get recent, data-driven insights about flights from California to Idaho including ideal travel times, pricing trends, and more.

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 $436). 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 January 30, 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 January 30, 2025.

The most flights from USCA to USID are scheduled on a Wednesday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 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 January 30, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Southwest
8.1
Very good
4,585 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Alaska Airlines
8.0
Very good
9,686 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Delta
8.0
Very good
8,450 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

United Airlines
7.4
Good
8,906 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Allegiant Air
7.3
Good
790 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

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?

    The California to Idaho flight path was viewed by 20 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    $44 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 $53 and $69, 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 $436). 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 California to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to Miami flights
Newark to Fort Lauderdale flights
Newark to Miami flights
LaGuardia to Miami flights
John F Kennedy Intl to Fort Lauderdale flights
John F Kennedy Intl to Orlando flights
Newark to Orlando flights
John F Kennedy Intl to West Palm Beach flights
John F Kennedy Intl to Las Vegas flights
O'Hare Intl to Las Vegas flights
Los Angeles to John F Kennedy Intl flights
Seattle to Sky Harbor Intl flights
John F Kennedy Intl to New Orleans flights
Reagan-National to Miami flights
LaGuardia to Orlando flights
John F Kennedy Intl to Los Angeles flights
Dallas/Fort Worth to Las Vegas flights
Dulles Intl to Orlando flights
Baltimore to Fort Lauderdale flights
John F Kennedy Intl to Dallas/Fort Worth flights
O'Hare Intl to Sky Harbor Intl flights
Boston to Fort Lauderdale flights
Minneapolis to Sky Harbor Intl flights
Newark to Las Vegas flights
Newark to Dallas/Fort Worth flights
Newark to West Palm Beach flights
Newark to Los Angeles flights
Dallas/Fort Worth to John F Kennedy Intl flights
Newark to Tampa flights
San Francisco to John F Kennedy Intl flights
LaGuardia to Dallas/Fort Worth flights
Boston to Miami flights
LaGuardia to New Orleans flights
Philadelphia to Orlando flights
Dallas/Fort Worth to LaGuardia flights
John F Kennedy Intl to San Francisco flights
Los Angeles to Newark flights
Minneapolis to Las Vegas flights
Los Angeles to Dallas/Fort Worth flights
Seattle to Las Vegas flights
Dulles Intl to Miami flights
O'Hare Intl to John F Kennedy Intl flights
LaGuardia to Hobby flights
Boston to Orlando flights
John F Kennedy Intl to Atlanta flights
John F Kennedy Intl to O'Hare Intl flights
San Francisco to Las Vegas flights
Newark to New Orleans flights
Detroit to Orlando flights

Top 8 airlines flying from California to Idaho

Discover the top 8 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Avelo AirlinesCheapest$73Average$162FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$78Average$156FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$94Average$208FlexibilityNo cancel feeOn-time88%
DeltaCheapest$122Average$476FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$123Average$361FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$153Average$435FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$157Average$343FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$218Average$371FlexibilityNo 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.