Cheap flights from Idaho to California from $48

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to California departing on 12/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Allegiant Air Logo
9:08 pm - 11:22 pmGEG-LAS
2h 14mnonstop
Allegiant Air Logo
5:55 pm - 8:18 pmLAS-GEG
2h 23mnonstop
$107Allegiant Air
Find Deal
Sun, Oct 19 - Thu, Oct 23
Allegiant Air Logo
9:04 pm - 11:18 pmGEG-LAS
2h 14mnonstop
Allegiant Air Logo
6:00 pm - 8:26 pmLAS-GEG
2h 26mnonstop
$109Allegiant Air
Find Deal
Sun, Nov 2 - Thu, Nov 6
Alaska Airlines Logo
2:01 pm - 4:21 pmGEG-SFO
2h 20mnonstop
Alaska Airlines Logo
11:29 am - 1:45 pmSFO-GEG
2h 16mnonstop
$117Alaska Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12
Southwest Logo
12:05 pm - 12:55 pmBOI-LAS
1h 50mnonstop
Southwest Logo
7:35 am - 10:20 amLAS-BOI
1h 45mnonstop
$117Southwest
Find Deal
Tue, Nov 11 - Sat, Nov 15
Alaska Airlines Logo
4:59 pm - 7:12 pmGEG-SFO
2h 13mnonstop
Alaska Airlines Logo
1:10 pm - 3:25 pmSFO-GEG
2h 15mnonstop
$127Alaska Airlines
Find Deal
Fri, Jan 9 - Wed, Jan 14
Southwest Logo
5:50 pm - 6:40 pmBOI-LAS
1h 50mnonstop
Southwest Logo
6:25 am - 1:35 pmLAS-BOI
6h 10m1 stop
$127Southwest
Find Deal
Tue, Nov 11 - Sat, Nov 15
Delta Logo
7:40 am - 2:39 pmBOI-LAS
7h 59m1 stop
Delta Logo
3:50 pm - 12:07 amLAS-BOI
7h 17m1 stop
$137Delta
Find Deal
Wed, Nov 5 - Wed, Nov 12
Delta Logo
2:38 pm - 9:57 pmGEG-SFO
7h 19m1 stop
Delta Logo
4:37 pm - 9:01 pmSFO-GEG
4h 24m1 stop
$137Delta
Find Deal
Wed, Nov 5 - Sat, Nov 15
United Airlines Logo
6:00 am - 8:42 amGEG-SFO
2h 42mnonstop
United Airlines Logo
8:25 am - 10:42 amSFO-GEG
2h 17mnonstop
$165United Airlines
Find Deal
Fri, Nov 7 - Sun, Nov 9
United Airlines Logo
10:48 am - 2:52 pmBOI-SAN
5h 04m1 stop
United Airlines Logo
6:00 pm - 11:48 pmSAN-BOI
4h 48m1 stop
$167United Airlines
Find Deal
Thu, Feb 5 - Wed, Feb 11

Delta flights from Idaho to California

Our best Delta deals on Idaho to California flight tickets
Delta
Nov 5
GEG2:38 pmSpokane
7h 19m
1 stop
SFO9:57 pmSan Francisco
Nov 15
SFO4:37 pmSan Francisco
4h 24m
1 stop
GEG9:01 pmSpokane
Delta
Dec 12
GEG5:05 amSpokane
4h 28m
1 stop
SFO9:33 amSan Francisco
Jan 10
SFO1:59 pmSan Francisco
4h 47m
1 stop
GEG6:46 pmSpokane
Delta
Nov 3
BOI4:46 pmBoise Air Term. Gowen Fld
6h 44m
1 stop
LAS10:30 pmLas Vegas Harry Reid Intl
Nov 12
LAS7:32 pmLas Vegas Harry Reid Intl
4h 03m
1 stop
BOI12:35 amBoise Air Term. Gowen Fld

Frontier flights from Idaho to California

Our best Frontier deals on Idaho to California flight tickets
Frontier
Nov 6
GEG12:03 pmSpokane
19h 59m
1 stop
LAS8:02 amLas Vegas Harry Reid Intl
Nov 12
LAS12:59 amLas Vegas Harry Reid Intl
10h 09m
1 stop
GEG11:08 amSpokane
Frontier
Feb 5
BOI12:54 pmBoise Air Term. Gowen Fld
12h 07m
1 stop
SAN12:01 amSan Diego
Feb 25
SAN6:25 amSan Diego
28h 34m
1 stop
BOI11:59 amBoise Air Term. Gowen Fld
Frontier
Oct 17
BOI12:28 pmBoise Air Term. Gowen Fld
28h 01m
1 stop
LAS3:29 pmLas Vegas Harry Reid Intl
Oct 22
LAS12:59 amLas Vegas Harry Reid Intl
9h 44m
1 stop
BOI11:43 amBoise Air Term. Gowen Fld

momondo 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, momondo users made 832,500 searches. Data last updated October 9, 2025.
Use the filters below to find and compare flights from Idaho to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

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

$107

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Sun 11/2

9:04 pm-11:18 pm

Nonstop2h 14m

Las Vegas Harry Reid Intl

Thu 11/6

6:00 pm-8:26 pm

Nonstop2h 26m

$109

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Wed 11/5

2:01 pm-4:21 pm

Nonstop2h 20m

San Francisco

Wed 11/12

11:29 am-1:45 pm

Nonstop2h 16m

$117

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 11/11

12:05 pm-12:55 pm

Nonstop1h 50m

Las Vegas Harry Reid Intl

Sat 11/15

7:35 am-10:20 am

Nonstop1h 45m

$117

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Fri 1/9

4:59 pm-7:12 pm

Nonstop2h 13m

San Francisco

Wed 1/14

1:10 pm-3:25 pm

Nonstop2h 15m

$127

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 11/11

5:50 pm-6:40 pm

Nonstop1h 50m

Las Vegas Harry Reid Intl

Sat 11/15

6:25 am-1:35 pm

1 stop6h 10m

$127

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Wed 11/5

7:40 am-2:39 pm

1 stop7h 59m

Las Vegas Harry Reid Intl

Wed 11/12

3:50 pm-12:07 am

1 stop7h 17m

$137

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Wed 11/5

2:38 pm-9:57 pm

1 stop7h 19m

San Francisco

Sat 11/15

4:37 pm-9:01 pm

1 stop4h 24m

$137

SpokaneSan Francisco

GEG - SFO

GEGSFO

Spokane

Fri 11/7

6:00 am-8:42 am

Nonstop2h 42m

San Francisco

Sun 11/9

8:25 am-10:42 am

Nonstop2h 17m

$165

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

Thu 2/5

10:48 am-2:52 pm

1 stop5h 04m

San Diego

Wed 2/11

6:00 pm-11:48 pm

1 stop4h 48m

$167

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to California from

How to get the cheapest flight ticket from Idaho to California

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to California?

The month of September is another great option to travel to California, with average flight prices from Idaho averaging around $237.

What is the cheapest day to depart on your flight to California?

The cheapest day to depart from Idaho to California is on a Thursday. Travelers who choose to depart for California on a Thursday will often find tickets for as low as $427. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to California on Monday is $579.

What is the cheapest time of day to depart on your flight to California?

The cheapest time of day to fly to California is in the afternoon when flights can be purchased for as low as $372. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $544 on average. Flights to California from Idaho in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Idaho to California flight route?

Fly from Boise Air Term. Gowen Fld to Sacramento Intl for the best Idaho - California flight prices

How far in advance should I book a flight to California?

You are more likely to see cheaper flights to California from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to California for around $270 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from Idaho for as low as $230 on momondo.

What cabin class options are available on Idaho to California flights?

There are 4 cabin classes available to choose from on Idaho to California flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Idaho to California flights?

No. A direct flight is the cheapest option for a flight between Idaho to California.

Cheap Idaho to California flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to California

Best Price Found

$108

Fastest flight time

1h 45m

Direct flights

Every day

Airports in California

1 airport
The best one-way flight to California from Idaho in the past 72 hours is $108. The best round-trip flight deal from Idaho to California found on momondo in the last 72 hours is $164.
The fastest flight from Idaho to California takes 1h 45m
Direct flights go from Idaho to California every day.
There is 1 airport near California: Las Vegas Harry Reid Intl (LAS)
  • When did momondo last update prices for flights from Idaho to California?

    Prices for flights from Idaho to California refresh daily.

  • How many operators does momondo search for flights from Idaho to California?

  • How old do you have to be to fly from Idaho to California?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to California.

  • What documentation or ID do you need to fly to California?

    The required travel and health documents for your California trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at California. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Idaho to California?

Best airlines flying from Idaho to California

Compare and see reviews for airlines that fly from Idaho to California with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $50Free CancellationRating
6.3
8,087 reviews
Search Spirit Airlines flights
Hawaiian AirlinesPriceFrom $73Free CancellationRating
7.8
2,775 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $78Free CancellationRating
7.9
7,971 reviews
Search Delta flights
Allegiant AirPriceFrom $90Free CancellationRating
7.2
697 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $133Free CancellationRating
7.4
8,966 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $137Free CancellationRating
8.0
11,049 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $147Free CancellationRating
8.0
4,236 reviews
Search Southwest flights
American AirlinesPriceFrom $172Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to California?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho to California. momondo saves you time and could save you money on your trip.

Can I find flights from Idaho to California with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Idaho to California flights to just show those with flexible booking policies.

How can momondo help me find flights from Idaho to California?

Once all potential Idaho to California flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Idaho to California right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Idaho to California flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Sat 11/8
Sat 11/15

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