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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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IDA
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
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Cheap 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 March 12, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/121:22 pm
LAS
-
IDA
Nonstop1h 46m
Allegiant Air
Mon 6/1510:56 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Deal found 3/9$89
This Cheapflightsfares deal was found by Cheapflights users on 3/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1512:42 pm
LAS
-
IDA
Nonstop1h 45m
Allegiant Air
Mon 5/257:48 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Deal found 3/11$101
This Cheapflightsfares deal was found by Cheapflights users on 3/12. 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.
Fri 4/1012:42 pm
LAS
-
IDA
Nonstop1h 45m
Allegiant Air
Mon 4/1310:21 pm
IDA
-
LAS
Nonstop1h 41m
Allegiant Air
Deal found 3/12$106
This Cheapflightsfares deal was found by Cheapflights users on 3/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/612:27 pm
LAS
-
IDA
Nonstop1h 45m
Allegiant Air
Mon 4/1310:21 pm
IDA
-
LAS
Nonstop1h 41m
Allegiant Air
Deal found 3/9$118
This Cheapflightsfares deal was found by Cheapflights users on 3/8. 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 4/106:18 pm
SNA
-
IDA
Nonstop2h 13m
Allegiant Air
Mon 4/134:17 pm
IDA
-
SNA
Nonstop2h 11m
Allegiant Air
Deal found 3/8$119
This Cheapflightsfares deal was found by Cheapflights users on 3/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/312:27 pm
LAS
-
IDA
Nonstop1h 45m
Allegiant Air
Mon 4/610:06 pm
IDA
-
LAS
Nonstop1h 41m
Allegiant Air
Deal found 3/11$123
This Cheapflightsfares deal was found by Cheapflights users on 3/7. 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 3/2012:28 pm
LAS
-
IDA
Nonstop1h 46m
Allegiant Air
Mon 3/2310:13 pm
IDA
-
LAS
Nonstop1h 46m
Allegiant Air
Deal found 3/7$131
This Cheapflightsfares deal was found by Cheapflights users on 3/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:42 pm
LAS
-
IDA
Nonstop1h 45m
Allegiant Air
Mon 4/2010:21 pm
IDA
-
LAS
Nonstop1h 41m
Allegiant Air
Deal found 3/9$145
This Cheapflightsfares deal was found by Cheapflights users on 3/7. 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 4/36:03 pm
SNA
-
IDA
Nonstop2h 13m
Allegiant Air
Mon 4/64:02 pm
IDA
-
SNA
Nonstop2h 11m
Allegiant Air
Deal found 3/7$150
This Cheapflightsfares deal was found by Cheapflights users on 3/7. 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 6/87:00 pm
SNA
-
IDA
Nonstop2h 06m
Allegiant Air
Fri 6/124:58 pm
IDA
-
SNA
Nonstop2h 12m
Allegiant Air
Deal found 3/7$151
This Cheapflightsfares deal was found by Cheapflights users on 3/8. 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 3/2712:28 pm
LAS
-
IDA
Nonstop1h 46m
Allegiant Air
Mon 3/3010:13 pm
IDA
-
LAS
Nonstop1h 46m
Allegiant Air
Deal found 3/8$160
This Cheapflightsfares deal was found by Cheapflights users on 3/7. 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 4/176:18 pm
SNA
-
IDA
Nonstop2h 13m
Allegiant Air
Mon 4/204:17 pm
IDA
-
SNA
Nonstop2h 11m
Allegiant Air
Deal found 3/7$167

Find 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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$89
(Cheapflightsfares)

One-way from

$81
(Cheapflightsfares)

Popular in

December

Cheapest in

April

Average price

$493

Good round-trip deal

$203 or less
Provider with most accurate pricing for Los Angeles Los Angeles-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles Los Angeles-Idaho Falls Fanning Field flights.
Search Deals
From California to Idaho Falls Fanning Field
Search Deals
One-way flight from California to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from California to Idaho Falls Fanning Field.
Search Deals

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 March 12, 2026.
Use the filters below to find and compare flights from California to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Tue 4/28

7:15 am-3:29 pm

1 stop7h 14m

Idaho Falls Fanning Field

Sat 5/2

6:00 am-6:41 pm

1 stop13h 41m

$223

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 3/27

12:28 pm-3:14 pm

Nonstop1h 46m

Idaho Falls Fanning Field

Mon 3/30

5:59 pm-10:46 pm

1 stop5h 47m

$256

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

Tue 4/28

7:00 am-3:29 pm

1 stop7h 29m

Idaho Falls Fanning Field

Sat 5/2

6:00 am-2:21 pm

1 stop9h 21m

$272

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Sun 5/17

5:50 am-10:47 am

1 stop3h 57m

Idaho Falls Fanning Field

Sun 5/24

6:00 am-8:58 am

1 stop3h 58m

$295

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Wed 4/15

10:28 pm-4:56 pm

1 stop17h 28m

Idaho Falls Fanning Field

Fri 4/17

10:21 pm-11:02 pm

Nonstop1h 41m

$300

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

Mon 5/18

5:40 am-10:47 am

1 stop4h 07m

Idaho Falls Fanning Field

Tue 5/26

6:54 pm-11:57 pm

1 stop6h 03m

$306

San FranciscoIdaho Falls

SFO - IDA

SFOIDA

San Francisco

Sun 5/17

5:40 am-10:47 am

1 stop4h 07m

Idaho Falls Fanning Field

Sun 5/24

6:54 pm-10:07 pm

1 stop4h 13m

$325

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Mon 5/18

7:59 pm-1:17 pm

2 stops16h 18m

Idaho Falls Fanning Field

Tue 5/26

6:00 am-12:20 pm

1 stop7h 20m

$339

OaklandIdaho Falls

OAK - IDA

OAKIDA

Oakland

Wed 5/6

2:09 pm-3:29 pm

1 stop24h 20m

Idaho Falls Fanning Field

Sat 5/9

6:00 am-10:32 pm

1 stop17h 32m

$343

Los AngelesIdaho Falls

LAX - IDA

LAXIDA

Los Angeles Los Angeles

Mon 6/15

5:55 am-10:39 am

1 stop3h 44m

Idaho Falls Fanning Field

Sat 6/20

6:10 am-9:07 am

1 stop3h 57m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

Showing 1-10 of 60 resultsSorted by cheapest first
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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, November is the cheapest month in which you can book a flight from California to Idaho Falls (average of $60). Flying from California to Idaho Falls in December is currently the most expensive (average of $223). 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 March 12, 2026.

When flying from California to Idaho Falls, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 25% versus a flight in the evening.

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 46m. Fly via Allegiant Air or Alaska 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?

    $36 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 Delta and United Airlines, with prices starting from $106 and $154, respectively.

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

    While some choose either Los Angeles Los Angeles - Idaho Falls Fanning Field or Fresno Airterminal - Idaho Falls Fanning Field, San Francisco - 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, November is the cheapest month in which you can book a flight from California to Idaho Falls (average of $60). Flying from California to Idaho Falls in December is currently the most expensive (average of $223). 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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Top 4 airlines flying from California to Idaho Falls

Discover the top 4 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 March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$95Average$159FlexibilityNo cancel feeOn-time88%
DeltaCheapest$126Average$408FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$219Average$460FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$236Average$369FlexibilityNo cancel feeOn-time75%

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