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Idaho Falls

$66+ Cheap flights from California to Idaho Falls (IDA)

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.
LAX — IDA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from California to Idaho Falls

Keep the following information in mind while searching for California to Idaho Falls flight deals. Data was last updated September 17, 2025.

Round-trip from

$118
(Cheapflightsfares)

One-way from

$66
(Cheapflightsfares)

Popular in

December

Cheapest in

April

Average price

$342

Good round-trip deal

$166 or less
From California to Idaho Falls Fanning Field
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One-way flight from California to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 19% potential increase in price ($101 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from California to Idaho Falls Fanning Field.
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Find flight deals from California to Idaho Falls

Cheapest flights from California to Idaho Falls
Explore the most affordable flight options available from California to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 9/261:16 pmLAS - IDA
Nonstop1h 49mAllegiant Air
Mon 9/299:39 pmIDA - LAS
Nonstop1h 44mAllegiant Air
Deal found 9/15$95
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 10/31:25 pmLAS - IDA
Nonstop1h 49mAllegiant Air
Mon 10/67:40 pmIDA - LAS
Nonstop1h 43mAllegiant Air
Deal found 9/15$104
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 10/31:25 pmLAS - IDA
Nonstop1h 49mAllegiant Air
Fri 11/1410:56 pmIDA - LAS
Nonstop1h 42mAllegiant Air
Deal found 9/16$118
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 11/146:58 pmSNA - IDA
Nonstop2h 08mAllegiant Air
Mon 11/171:57 pmIDA - SNA
Nonstop2h 11mAllegiant Air
Deal found 9/17$165
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 11/65:46 pmSNA - IDA
1 stop21h 22mMultiple Airlines
Mon 11/101:57 pmIDA - SNA
Nonstop2h 11mMultiple Airlines
Deal found 9/16$172
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 10/311:25 pmLAS - IDA
Nonstop1h 49mMultiple Airlines
Mon 11/32:51 pmIDA - LAS
1 stop7h 33mMultiple Airlines
Deal found 9/17$196
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/31:25 pmLAS - IDA
Nonstop1h 49mMultiple Airlines
Fri 11/144:58 pmIDA - LAS
1 stop16h 40mMultiple Airlines
Deal found 9/16$199
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/98:09 pmSNA - IDA
1 stop19h 05mMultiple Airlines
Mon 10/137:40 pmIDA - SNA
1 stop24h 34mMultiple Airlines
Deal found 9/16$207
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 9/2610:52 amLAS - IDA
1 stop10h 13mMultiple Airlines
Mon 9/299:39 pmIDA - LAS
Nonstop1h 44mMultiple Airlines
Deal found 9/15$208
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 9/266:55 pmSNA - IDA
Nonstop2h 10mAllegiant Air
Mon 9/293:39 pmIDA - SNA
Nonstop2h 10mAllegiant Air
Deal found 9/15$212
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Mon 9/295:39 pmSNA - IDA
Nonstop2h 10mAllegiant Air
Fri 10/35:04 pmIDA - SNA
Nonstop2h 10mAllegiant Air
Deal found 9/15$217
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 11/76:00 amLAX - IDA
1 stop9h 08mMultiple Airlines
Mon 11/107:56 pmIDA - LAX
1 stop24h 57mMultiple Airlines
Deal found 9/15$221

Cheapflights Fare Finder

 
Customize your flight search to find flights from California to Idaho Falls 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 September 17, 2025.
Use the filters below to find and compare flights from California to Idaho Falls that are best for you.

Fly from

California

Fly to

Idaho Falls

Route

Depart

Return

Price

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 9/26

1:16 pm-4:05 pm

Nonstop1h 49m

Idaho Falls Fanning Field

Mon 9/29

9:39 pm-10:23 pm

Nonstop1h 44m

$95

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 10/3

1:25 pm-4:14 pm

Nonstop1h 49m

Idaho Falls Fanning Field

Mon 10/6

7:40 pm-8:23 pm

Nonstop1h 43m

$104

Santa AnaIdaho Falls

SNA - IDA

SNAIDA

Santa Ana J. Wayne/Orange Cnty

Thu 11/6

5:46 pm-4:08 pm

1 stop21h 22m

Idaho Falls Fanning Field

Mon 11/10

1:57 pm-3:08 pm

Nonstop2h 11m

$172

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 10/3

1:25 pm-4:14 pm

Nonstop1h 49m

Idaho Falls Fanning Field

Fri 11/14

4:58 pm-8:38 am

1 stop16h 40m

$199

Santa AnaIdaho Falls

SNA - IDA

SNAIDA

Santa Ana J. Wayne/Orange Cnty

Thu 10/9

8:09 pm-4:14 pm

1 stop19h 05m

Idaho Falls Fanning Field

Mon 10/13

7:40 pm-7:14 pm

1 stop24h 34m

$207

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 9/26

10:52 am-10:05 pm

1 stop10h 13m

Idaho Falls Fanning Field

Mon 9/29

9:39 pm-10:23 pm

Nonstop1h 44m

$208

Los AngelesIdaho Falls

LAX - IDA

LAXIDA

Los Angeles

Fri 11/7

6:00 am-4:08 pm

1 stop9h 08m

Idaho Falls Fanning Field

Mon 11/10

7:56 pm-7:53 pm

1 stop24h 57m

$221

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Thu 11/20

7:45 pm-8:53 pm

1 stop24h 08m

Idaho Falls Fanning Field

Fri 11/28

6:57 pm-7:42 pm

Nonstop1h 45m

$229

Los AngelesIdaho Falls

LAX - IDA

LAXIDA

Los Angeles

Fri 11/28

8:00 am-6:07 pm

1 stop9h 07m

Idaho Falls Fanning Field

Mon 12/1

7:58 pm-9:08 pm

1 stop26h 10m

$241

SacramentoIdaho Falls

SMF - IDA

SMFIDA

Sacramento Intl

Sat 10/11

5:40 pm-10:30 pm

1 stop3h 50m

Idaho Falls Fanning Field

Sat 10/18

6:53 pm-9:49 pm

1 stop3h 56m

$243

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results
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Best time to book a flight from California to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls 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 Falls

What is the cheapest month to book a flight from California to Idaho Falls?

Currently, October is the cheapest month in which you can book a flight from California to Idaho Falls (average of $380). Flying from California to Idaho Falls in December is currently the most expensive (average of $578). 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 IDA?

Find hourly flight availability from California to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 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 Falls as you normally would.

Related info for your journey

Find useful and relevant information for your journey from California to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Idaho Falls from California?

    If you book a flight to Idaho Falls from California, you will be flying to Fanning Field, which is the city’s only airport. Idaho Falls Fanning Field (IDA) is located 3.8 mi from the center of Idaho Falls.

  • How long is the flight from California to Idaho Falls?

    There are many flights that can get you from California to Idaho Falls in 1h 49m. Fly via Allegiant Air, Delta, or Hawaiian Airlines to get the fastest option. Airlines will cover a distance of 538 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    $66 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 Hawaiian Airlines and United Airlines, with prices starting from $121 and $131, respectively.

  • What are the most popular routes from California to Idaho Falls?

    While some choose either San Francisco - Idaho Falls Fanning Field or Los Angeles - Idaho Falls Fanning Field, Santa Ana J. Wayne/Orange Cnty - Idaho Falls Fanning Field is the most popular route from California to Idaho Falls.

  • Can I find deals for flights from California to Idaho Falls that include hotel bookings?

    Yes. In addition to deals on California to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from California to Idaho Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Idaho Falls.

  • Can I find deals for business class flights from California to Idaho Falls?

    Yes. Cheapflights offers flight deals from California to Idaho Falls 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 Falls?

    Currently, October is the cheapest month in which you can book a flight from California to Idaho Falls (average of $380). Flying from California to Idaho Falls in December is currently the most expensive (average of $578). 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

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

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Alternative routes for California to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from California to Idaho Falls

Discover the top 5 airlines that operate flights from California to Idaho Falls. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$98Average$170FlexibilityNo cancel feeOn-time88%
DeltaCheapest$155Average$418FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$219Average$422FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$264Average$371FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$284Average$467FlexibilityNo cancel feeOn-time69%

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