Cheap flights from Idaho to California from $39

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 4/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
10:22 am - 11:17 am
BOI
-
SJC
1h 55mnonstop
Alaska Airlines Logo
7:59 pm - 10:43 pm
SJC
-
BOI
1h 44mnonstop
$131Alaska Airlines
ter, mai 5 - qua, mai 13
Southwest Logo
1:20 pm - 2:05 pm
BOI
-
SJC
1h 45mnonstop
Southwest Logo
8:55 am - 4:15 pm
SJC
-
BOI
6h 20m
1 stop
$141Southwest
qui, abr 23 - sáb, mai 2
Allegiant Air Logo
8:47 pm - 11:08 pm
GEG
-
LAS
2h 21mnonstop
Allegiant Air Logo
5:36 pm - 7:57 pm
LAS
-
GEG
2h 21mnonstop
$143Allegiant Air
qui, jun 25 - dom, jun 28
Allegiant Air Logo
8:51 pm - 11:07 pm
GEG
-
LAS
2h 16mnonstop
Allegiant Air Logo
5:39 pm - 8:01 pm
LAS
-
GEG
2h 22mnonstop
$146Allegiant Air
qui, jul 16 - dom, jul 19
Southwest Logo
1:20 pm - 2:05 pm
BOI
-
SJC
1h 45mnonstop
Southwest Logo
6:50 am - 2:10 pm
SJC
-
BOI
6h 20m
2 stops
$146Southwest
qui, abr 23 - sáb, mai 2
Delta Logo
6:20 am - 12:28 pm
GEG
-
LAS
6h 08m
1 stop
Delta Logo
5:06 pm - 11:59 pm
LAS
-
GEG
6h 53m
1 stop
$149Delta
qua, jun 10 - seg, jun 15
Alaska Airlines Logo
7:53 pm - 8:25 am
GEG
-
LAS
12h 32m
1 stop
Alaska Airlines Logo
10:08 am - 11:59 pm
LAS
-
GEG
13h 51m
1 stop
$154Alaska Airlines
ter, abr 14 - qui, abr 16
United Airlines Logo
6:15 am - 7:19 am
BOI
-
SFO
2h 04mnonstop
United Airlines Logo
6:25 pm - 9:17 pm
SFO
-
BOI
1h 52mnonstop
$157United Airlines
sex, abr 17 - seg, abr 20
Delta Logo
8:30 am - 11:42 am
BOI
-
BUR
4h 12m
1 stop
Delta Logo
4:50 pm - 11:57 pm
BUR
-
BOI
6h 07m
1 stop
$163Delta
ter, abr 21 - ter, abr 28
United Airlines Logo
5:00 am - 9:16 am
BOI
-
SAN
5h 16m
1 stop
United Airlines Logo
9:46 am - 3:24 pm
SAN
-
BOI
4h 38m
1 stop
$181United Airlines
dom, abr 26 - qua, abr 29

United Airlines flights from Idaho to California

Our best United Airlines deals on Idaho to California flight tickets
United Airlines
Apr 17
BOI6:15 amBoise Air Term. Gowen Fld
2h 04m
SFO7:19 amSan Francisco
Apr 20
SFO6:25 pmSan Francisco
1h 52m
BOI9:17 pmBoise Air Term. Gowen Fld
$157
United Airlines
Apr 26
BOI5:00 amBoise Air Term. Gowen Fld
5h 16m
1 stop
SAN9:16 amSan Diego
Apr 29
SAN9:46 amSan Diego
4h 38m
1 stop
BOI3:24 pmBoise Air Term. Gowen Fld
$181
United Airlines
Apr 25
BOI6:15 amBoise Air Term. Gowen Fld
5h 21m
1 stop
LAX10:36 amLos Angeles
Apr 29
LAX6:57 pmLos Angeles
2h 18m
BOI10:15 pmBoise Air Term. Gowen Fld
$187

Frontier flights from Idaho to California

Our best Frontier deals on Idaho to California flight tickets
Frontier
Apr 12
BOI12:03 pmBoise Air Term. Gowen Fld
6h 30m
1 stop
LAS5:33 pmLas Vegas Harry Reid Intl
Apr 15
LAS12:59 amLas Vegas Harry Reid Intl
9h 09m
1 stop
BOI11:08 amBoise Air Term. Gowen Fld
$160
Frontier
May 7
BOI1:22 pmBoise Air Term. Gowen Fld
11h 54m
1 stop
LAX12:16 amLos Angeles
May 11
LAX8:59 pmLos Angeles
14h 28m
1 stop
BOI12:27 pmBoise Air Term. Gowen Fld
$171
Frontier
Apr 9
BOI12:03 pmBoise Air Term. Gowen Fld
13h 09m
1 stop
LAX12:12 amLos Angeles
Apr 11
LAX6:15 amLos Angeles
27h 53m
1 stop
BOI11:08 amBoise Air Term. Gowen Fld
$191

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 março 27, 2026.
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

Cheapest round-trip
Quickest round-trip

BoiseSan Jose

BOI - SJC

BOISJC

Boise Air Term. Gowen Fld

ter 5/5

10:22 am-11:17 am

Nonstop1h 55m

San Jose

qua 5/13

7:59 pm-10:43 pm

Nonstop1h 44m

$131

BoiseSan Jose

BOI - SJC

BOISJC

Boise Air Term. Gowen Fld

qui 4/23

1:20 pm-2:05 pm

Nonstop1h 45m

San Jose

sáb 5/2

8:55 am-4:15 pm

1 stop6h 20m

$141

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

qui 6/25

8:47 pm-11:08 pm

Nonstop2h 21m

Las Vegas Harry Reid Intl

dom 6/28

5:36 pm-7:57 pm

Nonstop2h 21m

$143

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

qui 7/16

8:51 pm-11:07 pm

Nonstop2h 16m

Las Vegas Harry Reid Intl

dom 7/19

5:39 pm-8:01 pm

Nonstop2h 22m

$146

BoiseSan Jose

BOI - SJC

BOISJC

Boise Air Term. Gowen Fld

qui 4/23

1:20 pm-2:05 pm

Nonstop1h 45m

San Jose

sáb 5/2

6:50 am-2:10 pm

2 stops6h 20m

$146

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

qua 6/10

6:20 am-12:28 pm

1 stop6h 08m

Las Vegas Harry Reid Intl

seg 6/15

5:06 pm-11:59 pm

1 stop6h 53m

$149

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

ter 4/14

7:53 pm-8:25 am

1 stop12h 32m

Las Vegas Harry Reid Intl

qui 4/16

10:08 am-11:59 pm

1 stop13h 51m

$154

BoiseSan Francisco

BOI - SFO

BOISFO

Boise Air Term. Gowen Fld

sex 4/17

6:15 am-7:19 am

Nonstop2h 04m

San Francisco

seg 4/20

6:25 pm-9:17 pm

Nonstop1h 52m

$157

BoiseBurbank

BOI - BUR

BOIBUR

Boise Air Term. Gowen Fld

ter 4/21

8:30 am-11:42 am

1 stop4h 12m

Burbank Bob Hope

ter 4/28

4:50 pm-11:57 pm

1 stop6h 07m

$163

BoiseSan Diego

BOI - SAN

BOISAN

Boise Air Term. Gowen Fld

dom 4/26

5:00 am-9:16 am

1 stop5h 16m

San Diego

qua 4/29

9:46 am-3:24 pm

1 stop4h 38m

$181

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 $386. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to California on Sunday is $582.

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 evening when flights can be purchased for as low as $386. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $536 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 San Diego 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 $224 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

$79

Fastest flight time

1h 25m

Direct flights

Every day

Airports in California

418 airports
The best one-way flight to California from Idaho in the past 72 hours is $79. The best round-trip flight deal from Idaho to California found on momondo in the last 72 hours is $144.
The fastest flight from Idaho to California takes 1h 25m
Direct flights go from Idaho to California every day.
There are 418 airports in California. From Idaho there are direct flights to San Jose (SJC), San Francisco (SFO), 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 $57Free CancellationRating
6.3
8,552 reviews
Search Spirit Airlines flights
DeltaPriceFrom $68Free CancellationRating
7.9
8,336 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $68Free CancellationRating
7.8
2,839 reviews
Search Hawaiian Airlines flights
Allegiant AirPriceFrom $90Free CancellationRating
7.3
710 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $108Free CancellationRating
7.4
9,494 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $117Free CancellationRating
7.9
12,120 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $147Free CancellationRating
8.0
4,330 reviews
Search Southwest flights
American AirlinesPriceFrom $294Free CancellationRating
7.1
11,502 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
dom 4/26
dom 5/3

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