$48+ Cheap flights from Idaho to California
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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LAX
Apr 15 — Apr 221
Round-trip
1 adult, Economy
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Find cheap flights from Idaho to California 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
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Cheapest flights from Idaho to CaliforniaExplore the most affordable flight options available from Idaho to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.
Explore the most affordable flight options available from Idaho to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/199:19 pm
GEG
- LAS
Nonstop2h 16m
Multiple Airlines
Wed 4/227:00 am
LAS
- GEG
1 stop4h 46m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Sat 4/187:31 pm
GEG
- LAS
1 stop4h 26m
Multiple Airlines
Thu 4/236:03 pm
LAS
- GEG
Nonstop2h 26m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$143
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:00 am
GEG
- LAS
1 stop7h 14m
Multiple Airlines
Thu 4/306:03 pm
LAS
- GEG
Nonstop2h 26m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$145
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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 4/99:19 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Thu 4/166:03 pm
LAS
- GEG
Nonstop2h 26m
Allegiant Air
Deal found 3/13![Allegiant Air logo]()
$147
This Mytrip deal was found by Cheapflights users on 3/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/269:19 pm
GEG
- LAS
Nonstop2h 16m
Multiple Airlines
Wed 4/2912:59 am
LAS
- GEG
1 stop9h 50m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$149
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:00 am
GEG
- SMF
1 stop6h 58m
Alaska Airlines
Mon 5/47:51 pm
SMF
- GEG
1 stop4h 04m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$149
This Booking.com deal was found by Cheapflights users on 3/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/168:51 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Sun 7/195:39 pm
LAS
- GEG
Nonstop2h 22m
Allegiant Air
Deal found 3/14![Allegiant Air logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Thu 4/169:19 pm
GEG
- LAS
Nonstop2h 16m
Multiple Airlines
Wed 4/227:00 am
LAS
- GEG
1 stop4h 46m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$151
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/163:25 pm
BOI
- SJC
2 stops6h 50m
Southwest
Sun 5/1712:50 pm
SJC
- BOI
Nonstop1h 40m
Southwest
Deal found 3/11![Southwest logo]()
$153
This Gotogate deal was found by Cheapflights users on 3/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/124:05 pm
GEG
- LAS
1 stop6h 09m
Multiple Airlines
Thu 4/306:03 pm
LAS
- GEG
Nonstop2h 26m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Tue 4/1412:17 pm
GEG
- LAS
1 stop6h 48m
Multiple Airlines
Thu 4/236:03 pm
LAS
- GEG
Nonstop2h 26m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$154
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.
Sun 3/299:21 pm
GEG
- LAS
Nonstop2h 17m
Allegiant Air
Thu 4/26:03 pm
LAS
- GEG
Nonstop2h 26m
Allegiant Air
Deal found 3/11![Allegiant Air logo]()
$155
Best flights from Idaho to CaliforniaDiscover carefully curated flight deals from Idaho to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 16, 2026.
Discover carefully curated flight deals from Idaho to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 16, 2026.
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:40 am
BOI
- SFO
Nonstop2h 00m
Alaska Airlines
Thu 4/96:56 pm
SFO
- BOI
Nonstop1h 44m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$157
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/119:26 am
BOI
- LAX
1 stop7h 05m
United Airlines
Wed 4/154:55 pm
LAX
- BOI
Nonstop2h 18m
United Airlines
Deal found 3/12![United Airlines logo]()
$157
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/44:25 pm
BOI
- LAS
1 stop5h 20m
Southwest
Wed 4/154:00 pm
LAS
- BOI
2 stops6h 30m
Southwest
Deal found 3/11![Southwest logo]()
$162
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/135:45 am
GEG
- LAS
1 stop6h 23m
Delta
Sun 6/146:00 am
LAS
- GEG
1 stop7h 02m
Delta
Deal found 3/11![Delta logo]()
$169
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:40 am
BOI
- SFO
Nonstop2h 00m
Alaska Airlines
Sat 4/46:56 pm
SFO
- BOI
Nonstop1h 44m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$157
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:55 am
GEG
- LAS
1 stop4h 59m
Delta
Thu 7/26:00 am
LAS
- GEG
1 stop7h 02m
Delta
Deal found 3/12![Delta logo]()
$169
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:11 am
BOI
- LAX
Nonstop2h 19m
United Airlines
Wed 4/154:55 pm
LAX
- BOI
Nonstop2h 18m
United Airlines
Deal found 3/11![United Airlines logo]()
$169
This Alaska Airlines deal was found by Cheapflights users on 3/13. 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.
Fri 4/107:40 am
BOI
- SFO
Nonstop2h 00m
Alaska Airlines
Sun 4/126:56 pm
SFO
- BOI
Nonstop1h 44m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 3/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/74:20 pm
BOI
- SFO
1 stop7h 45m
Southwest
Tue 5/125:40 am
SFO
- BOI
1 stop6h 40m
Southwest
Deal found 3/15![Southwest logo]()
$177
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:10 am
GEG
- SMF
1 stop4h 34m
Delta
Tue 6/95:00 pm
SMF
- GEG
1 stop6h 35m
Delta
Deal found 3/11![Delta logo]()
$169
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/79:02 am
BOI
- SJC
Nonstop2h 00m
Alaska Airlines
Sat 4/117:22 pm
SJC
- BOI
Nonstop1h 45m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 3/14. 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 4/213:15 pm
BOI
- LAS
1 stop6h 35m
Southwest
Fri 4/246:55 pm
LAS
- BOI
1 stop5h 05m
Southwest
Deal found 3/14![Southwest logo]()
$177
This Alaska Airlines deal was found by Cheapflights users on 3/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/189:02 am
BOI
- SJC
Nonstop2h 00m
Alaska Airlines
Sun 4/197:22 pm
SJC
- BOI
Nonstop1h 45m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$157
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:40 am
BOI
- SJC
1 stop5h 05m
Southwest
Mon 5/45:50 pm
SJC
- BOI
2 stops6h 10m
Southwest
Deal found 3/12![Southwest logo]()
$182
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/186:00 pm
BOI
- LAS
1 stop5h 53m
Delta
Wed 5/201:30 pm
LAS
- BOI
1 stop7h 43m
Delta
Deal found 3/12![Delta logo]()
$187
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/109:02 am
BOI
- SJC
Nonstop2h 00m
Alaska Airlines
Mon 4/137:22 pm
SJC
- BOI
Nonstop1h 45m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$157
This United Airlines deal was found by Cheapflights users on 3/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:11 am
BOI
- LAX
Nonstop2h 19m
United Airlines
Tue 4/214:55 pm
LAX
- BOI
Nonstop2h 18m
United Airlines
Deal found 3/13![United Airlines logo]()
$217
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/291:05 pm
BOI
- SJC
1 stop5h 25m
Southwest
Tue 5/54:30 pm
SJC
- BOI
2 stops6h 55m
Southwest
Deal found 3/12![Southwest logo]()
$182
This Delta deal was found by Cheapflights users on 3/13. 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.
Sun 4/267:03 pm
GEG
- LAS
1 stop4h 34m
Delta
Thu 4/307:14 pm
LAS
- GEG
1 stop5h 06m
Delta
Deal found 3/13![Delta logo]()
$189
This Alaska Airlines deal was found by Cheapflights users on 3/13. 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.
Tue 5/125:00 am
GEG
- SMF
1 stop6h 58m
Alaska Airlines
Wed 5/137:00 am
SMF
- GEG
1 stop4h 52m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$159
This Southwest deal was found by Cheapflights users on 3/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/131:20 pm
BOI
- LAS
2 stops6h 00m
Southwest
Mon 4/2010:00 pm
LAS
- BOI
Nonstop1h 45m
Southwest
Deal found 3/15![Southwest logo]()
$182
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/175:40 pm
GEG
- LAS
1 stop5h 06m
Delta
Tue 6/237:00 pm
LAS
- GEG
1 stop4h 44m
Delta
Deal found 3/12![Delta logo]()
$189
This Southwest deal was found by Cheapflights users on 3/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:45 am
GEG
- SAN
1 stop4h 10m
Southwest
Tue 5/53:05 pm
SAN
- GEG
2 stops7h 40m
Southwest
Deal found 3/15![Southwest logo]()
$182
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:40 am
BOI
- SFO
Nonstop2h 00m
Alaska Airlines
Tue 4/1411:13 am
SFO
- BOI
1 stop7h 35m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$167
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:00 am
GEG
- SFO
Nonstop2h 30m
United Airlines
Sun 5/38:20 pm
SFO
- GEG
Nonstop2h 30m
United Airlines
Deal found 3/12![United Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 3/13. 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.
Mon 8/317:07 pm
GEG
- LAS
1 stop5h 21m
Delta
Sat 9/55:00 pm
LAS
- GEG
1 stop6h 44m
Delta
Deal found 3/13![Delta logo]()
$189
This Southwest deal was found by Cheapflights users on 3/13. 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 5/125:10 am
GEG
- SAN
2 stops7h 00m
Southwest
Fri 5/156:55 pm
SAN
- GEG
1 stop5h 35m
Southwest
Deal found 3/13![Southwest logo]()
$182
This Delta deal was found by Cheapflights users on 3/14. 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 7/75:20 am
GEG
- LAS
1 stop4h 36m
Delta
Fri 7/106:00 am
LAS
- GEG
1 stop7h 02m
Delta
Deal found 3/14![Delta logo]()
$189
This Alaska Airlines deal was found by Cheapflights users on 3/13. 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.
Thu 4/307:43 am
BOI
- SJC
1 stop7h 01m
Alaska Airlines
Wed 5/66:15 am
SJC
- BOI
1 stop6h 37m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$177
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/83:15 pm
BOI
- SFO
2 stops8h 30m
Southwest
Wed 4/155:55 am
SFO
- BOI
2 stops8h 30m
Southwest
Deal found 3/11![Southwest logo]()
$187
Last-minute flights from Idaho to CaliforniaDiscover last-minute flight deals from Idaho to California. Data last updated March 16, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to California. Data last updated March 16, 2026 and is based on user searches.
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.
Sun 3/299:21 pm
GEG
- LAS
Nonstop2h 17m
Allegiant Air
Thu 4/26:03 pm
LAS
- GEG
Nonstop2h 26m
Allegiant Air
Deal found 3/11![Allegiant Air logo]()
$156
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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 4/99:19 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Thu 4/166:03 pm
LAS
- GEG
Nonstop2h 26m
Allegiant Air
Deal found 3/13![Allegiant Air logo]()
$147
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:40 am
BOI
- SFO
Nonstop2h 00m
Alaska Airlines
Tue 4/146:56 pm
SFO
- BOI
Nonstop1h 44m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$157
This Gotogate deal was found by Cheapflights users on 3/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/124:05 pm
GEG
- LAS
1 stop6h 09m
Multiple Airlines
Thu 4/306:03 pm
LAS
- GEG
Nonstop2h 26m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Tue 4/1412:17 pm
GEG
- LAS
1 stop6h 48m
Multiple Airlines
Thu 4/236:03 pm
LAS
- GEG
Nonstop2h 26m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Thu 4/169:19 pm
GEG
- LAS
Nonstop2h 16m
Multiple Airlines
Wed 4/227:00 am
LAS
- GEG
1 stop4h 46m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Sat 4/187:31 pm
GEG
- LAS
1 stop4h 26m
Multiple Airlines
Thu 4/236:03 pm
LAS
- GEG
Nonstop2h 26m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$143
This Cheapflightsfares deal was found by Cheapflights users on 3/15. 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.
Thu 4/239:19 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Thu 4/306:03 pm
LAS
- GEG
Nonstop2h 26m
Allegiant Air
Deal found 3/15![Allegiant Air logo]()
$155
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:55 pm
BOI
- LAS
1 stop4h 10m
Southwest
Tue 4/283:10 pm
LAS
- BOI
2 stops7h 10m
Southwest
Deal found 3/11![Southwest logo]()
$156
This Mytrip deal was found by Cheapflights users on 3/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/269:19 pm
GEG
- LAS
Nonstop2h 16m
Multiple Airlines
Wed 4/2912:59 am
LAS
- GEG
1 stop9h 50m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$149
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:00 am
GEG
- LAS
1 stop7h 14m
Multiple Airlines
Thu 4/306:03 pm
LAS
- GEG
Nonstop2h 26m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$145
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:00 am
GEG
- SMF
1 stop6h 58m
Alaska Airlines
Mon 5/47:51 pm
SMF
- GEG
1 stop4h 04m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$149
One-way flights from Idaho to CaliforniaSearch for one-way flight options from Idaho to California. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
Search for one-way flight options from Idaho to California. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Sun 4/199:19 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Deal found 3/15![Allegiant Air logo]()
$48
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:19 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Deal found 3/12![Allegiant Air logo]()
$49
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/78:47 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Deal found 3/11![Allegiant Air logo]()
$53
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Sun 5/109:19 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Deal found 3/13![Allegiant Air logo]()
$56
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Thu 6/48:47 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Deal found 3/15![Allegiant Air logo]()
$57
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Thu 4/169:19 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Deal found 3/15![Allegiant Air logo]()
$60
This Trip.com deal was found by Cheapflights users on 3/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/129:19 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Deal found 3/15![Allegiant Air logo]()
$62
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:00 am
BOI
- LAS
1 stop5h 25m
Southwest
Deal found 3/11![Southwest logo]()
$63
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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.
Sun 6/148:47 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Deal found 3/13![Allegiant Air logo]()
$65
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/253:25 pm
BOI
- SAN
1 stop3h 35m
Southwest
Deal found 3/11![Southwest logo]()
$65
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:20 am
BOI
- LAS
Nonstop2h 05m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$69
This Alaska Airlines deal was found by Cheapflights users on 3/13. 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.
Tue 4/147:19 am
GEG
- SAN
Nonstop2h 51m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$69
Find flight deals from Idaho to California
Keep the following information in mind while searching for Idaho to California flight deals. Data was last updated March 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $142 (Kiwi.com) |
One-way from | $48 (Kiwi.com) |
Popular in | March |
Cheapest in | April |
Average price | $363 |
Good round-trip deal | $146 or less |
Good one-way deal | $79 or less |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 16, 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
Cheapest round-trip
Quickest round-trip
BoiseSan Francisco
BOI - SFO
BOISFO
Boise Air Term. Gowen Fld
Tue 4/7
7:40 am-8:40 am
Nonstop2h 00m
San Francisco
Thu 4/9
6:56 pm-9:40 pm
Nonstop1h 44m
$157
BoiseLos Angeles
BOI - LAX
BOILAX
Boise Air Term. Gowen Fld
Sat 4/11
9:26 am-3:31 pm
1 stop7h 05m
Los Angeles Los Angeles
Wed 4/15
4:55 pm-8:13 pm
Nonstop2h 18m
$157
BoiseSan Francisco
BOI - SFO
BOISFO
Boise Air Term. Gowen Fld
Wed 4/1
7:40 am-8:40 am
Nonstop2h 00m
San Francisco
Sat 4/4
6:56 pm-9:40 pm
Nonstop1h 44m
$157
BoiseSan Francisco
BOI - SFO
BOISFO
Boise Air Term. Gowen Fld
Fri 4/10
7:40 am-8:40 am
Nonstop2h 00m
San Francisco
Sun 4/12
6:56 pm-9:40 pm
Nonstop1h 44m
$157
BoiseSan Jose
BOI - SJC
BOISJC
Boise Air Term. Gowen Fld
Tue 4/7
9:02 am-10:02 am
Nonstop2h 00m
San Jose
Sat 4/11
7:22 pm-10:07 pm
Nonstop1h 45m
$157
BoiseSan Jose
BOI - SJC
BOISJC
Boise Air Term. Gowen Fld
Sat 4/18
9:02 am-10:02 am
Nonstop2h 00m
San Jose
Sun 4/19
7:22 pm-10:07 pm
Nonstop1h 45m
$157
BoiseSan Jose
BOI - SJC
BOISJC
Boise Air Term. Gowen Fld
Fri 4/10
9:02 am-10:02 am
Nonstop2h 00m
San Jose
Mon 4/13
7:22 pm-10:07 pm
Nonstop1h 45m
$157
SpokaneSacramento
GEG - SMF
GEGSMF
Spokane
Tue 5/12
5:00 am-11:58 am
1 stop6h 58m
Sacramento Intl
Wed 5/13
7:00 am-11:52 am
1 stop4h 52m
$159
BoiseLas Vegas
BOI - LAS
BOILAS
Boise Air Term. Gowen Fld
Sat 4/4
4:25 pm-8:45 pm
1 stop5h 20m
Las Vegas Harry Reid Intl
Wed 4/15
4:00 pm-11:30 pm
2 stops6h 30m
$162
BoiseSan Francisco
BOI - SFO
BOISFO
Boise Air Term. Gowen Fld
Sat 4/11
7:40 am-8:40 am
Nonstop2h 00m
San Francisco
Tue 4/14
11:13 am-7:48 pm
1 stop7h 35m
$167
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Idaho to California
Have a flexible travel schedule? Discover the best time to fly to California from Idaho with our price prediction graph.
GEG-LAS
GEG-SMF
BOI-SJC
BOI-SFO
BOI-LAS
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 Idaho to California
USID-USCA
GEG-LAS
GEG-SMF
BOI-SJC
BOI-SFO
What is the cheapest month to book a flight from Idaho to California?
Currently, August is the cheapest month in which you can book a flight from Idaho to California (average of $77). Flying from Idaho to California in February is currently the most expensive (average of $140). 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 ID to CA?
Find hourly flight availability from Idaho to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 16, 2026.
When flying from Idaho to California, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 16% versus a flight in the evening.
What is the cheapest day to fly from Idaho to California?
Use this chart to determine the cheapest time to fly round-trip from Idaho to California. Price data was last updated on March 14, 2026.
Travelers seeking maximum savings on their Idaho to California flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Idaho to California
Explore weekly flight availability from Idaho to California. 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 March 16, 2026.
The most flights from USID to USCA are scheduled on a Friday (21 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (9 on average).
Reviews of airlines servicing California
Get insights into the airlines that provide service to California. 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 California. Reviews last updated March 16, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Idaho to California by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Related info for your journey
Find useful and relevant information for your journey from Idaho to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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.
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Top destinations
Alternative routes for Idaho to California
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to California by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho to California by cabin class
Find flights from Idaho to California, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and California flights
Browse other Idaho and California flight options. Last updated on March 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from California
Find the right flight back to Idaho after your stay in California
Idaho to California flights
Consider these flights traveling from Idaho to California.
Top 8 airlines flying from Idaho to California
Discover the top 8 airlines that operate flights from Idaho to California. 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 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$161 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$68 | Average$366 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$68 | Average$242 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$90 | Average$178 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$108 | Average$367 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$117 | Average$326 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$147 | Average$307 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$294 | Average$502 | FlexibilityNo cancel fee | On-time71% |