$62+ Cheap flights from California to Idaho
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BOI
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from California to Idaho 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 California to IdahoExplore the most affordable flight options available from California to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
Explore the most affordable flight options available from California to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 10/18:24 pm -
1 stop16h 31m
Mon 10/52:50 pm -
1 stop18h 24m
Deal found 9/11![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/75:54 pm -
1 stop19h 01m
Mon 10/192:50 pm -
1 stop5h 59m
Deal found 9/10![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 10/19:03 pm -
1 stop15h 52m
Mon 10/52:50 pm -
1 stop27h 09m
Deal found 9/11![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/88:34 pm -
1 stop16h 21m
Mon 10/192:50 pm -
1 stop5h 59m
Deal found 9/10![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:19 pm -
1 stop14h 36m
Mon 10/262:50 pm -
1 stop28h 29m
Deal found 9/14![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/75:54 pm -
1 stop19h 01m
Fri 10/162:50 pm -
1 stop26h 59m
Deal found 9/10![Frontier logo]()
$153
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 10/1310:29 am -
Nonstop2h 18m
Mon 10/197:37 pm -
Nonstop2h 21m
Deal found 9/10![Alaska Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 9/305:54 pm -
1 stop19h 01m
Mon 10/52:50 pm -
1 stop27h 09m
Deal found 9/11![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 10/12:30 pm -
1 stop22h 25m
Mon 10/52:50 pm -
1 stop19h 19m
Deal found 9/11![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 10/158:34 pm -
1 stop16h 21m
Mon 10/192:50 pm -
2 stops24h 39m
Deal found 9/11![Frontier logo]()
$161
This Southwest deal was found by Cheapflights users on 9/10. 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 10/1710:40 am -
Nonstop2h 10m
Tue 10/2011:55 am -
1 stop4h 05m
Deal found 9/10![Southwest logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/88:34 pm -
1 stop16h 21m
Fri 10/162:50 pm -
1 stop26h 59m
Deal found 9/10![Frontier logo]()
$164
Best flights from California to IdahoDiscover carefully curated flight deals from California to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from California to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This Southwest deal was found by Cheapflights users on 9/10. 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 10/104:05 pm -
1 stop3h 50m
Sat 10/171:35 pm -
Nonstop2h 15m
Deal found 9/10![Southwest logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 10/17:52 pm -
1 stop4h 07m
Mon 10/57:46 pm -
1 stop22h 09m
Deal found 9/10![Alaska Airlines logo]()
$203
This Delta deal was found by Cheapflights users on 9/13. 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.
Tue 11/39:42 am -
1 stop7h 17m
Tue 11/106:45 pm -
1 stop6h 08m
Deal found 9/13![Delta logo]()
$217
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/1710:10 am -
Nonstop1h 48m
Tue 10/202:20 pm -
Nonstop2h 00m
Deal found 9/10![United Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 9/14. 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.
Sat 10/176:05 am -
1 stop5h 50m
Wed 10/214:40 pm -
1 stop6h 25m
Deal found 9/14![Southwest logo]()
$183
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 10/15:11 pm -
1 stop6h 48m
Tue 10/64:41 pm -
1 stop5h 03m
Deal found 9/10![Alaska Airlines logo]()
$203
This Delta deal was found by Cheapflights users on 9/14. 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 10/203:00 pm -
1 stop7h 04m
Sat 10/244:00 pm -
1 stop4h 14m
Deal found 9/14![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 9/14. 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.
Thu 10/229:20 am -
1 stop5h 45m
Tue 10/271:25 pm -
2 stops7h 25m
Deal found 9/14![Southwest logo]()
$210
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 10/268:45 pm -
Nonstop1h 48m
Tue 10/277:10 pm -
Nonstop1h 54m
Deal found 9/11![United Airlines logo]()
$232
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:03 am -
1 stop3h 43m
Mon 10/197:46 pm -
1 stop4h 05m
Deal found 9/15![Alaska Airlines logo]()
$215
This Delta deal was found by Cheapflights users on 9/13. 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.
Sat 12/53:00 pm -
1 stop6h 58m
Sat 12/121:17 pm -
1 stop4h 08m
Deal found 9/13![Delta logo]()
$217
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:04 pm -
Nonstop1h 55m
Sun 10/256:20 am -
Nonstop2h 08m
Deal found 9/14![United Airlines logo]()
$236
This Southwest deal was found by Cheapflights users on 9/10. 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 10/155:30 am -
1 stop4h 50m
Mon 10/196:50 pm -
2 stops6h 20m
Deal found 9/10![Southwest logo]()
$218
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/105:36 pm -
Nonstop2h 05m
Mon 12/143:40 pm -
Nonstop2h 16m
Deal found 9/14![Alaska Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 12/37:50 pm -
Nonstop2h 08m
Sun 12/66:45 pm -
1 stop4h 09m
Deal found 9/10![Delta logo]()
$240
This Southwest deal was found by Cheapflights users on 9/13. 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.
Sat 10/173:10 pm -
1 stop4h 45m
Mon 10/197:45 pm -
1 stop5h 25m
Deal found 9/13![Southwest logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:35 pm -
Nonstop1h 45m
Mon 10/198:57 am -
Nonstop1h 58m
Deal found 9/14![Alaska Airlines logo]()
$230
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/1011:45 am -
1 stop6h 46m
Sun 10/116:00 am -
1 stop8h 02m
Deal found 9/10![United Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 9/12. 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 10/1411:45 am -
Nonstop2h 02m
Wed 10/284:00 pm -
Nonstop2h 20m
Deal found 9/12![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 9/11. 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.
Thu 10/227:10 pm -
1 stop4h 00m
Sun 10/256:15 am -
1 stop4h 15m
Deal found 9/11![Southwest logo]()
$227
This United Airlines deal was found by Cheapflights users on 9/12. 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 10/31:22 pm -
1 stop7h 13m
Wed 10/2812:00 pm -
1 stop7h 01m
Deal found 9/12![United Airlines logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:29 am -
Nonstop2h 18m
Mon 10/197:20 am -
Nonstop2h 21m
Deal found 9/14![Alaska Airlines logo]()
$235
This Southwest deal was found by Cheapflights users on 9/12. 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.
Thu 11/1911:00 am -
Nonstop2h 15m
Sun 11/226:35 am -
Nonstop2h 10m
Deal found 9/12![Southwest logo]()
$232
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 10/156:00 am -
1 stop3h 42m
Mon 10/198:49 am -
1 stop4h 47m
Deal found 9/10![Delta logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 10/176:35 pm -
Nonstop1h 45m
Wed 10/218:57 am -
Nonstop1h 58m
Deal found 9/10![Alaska Airlines logo]()
$252
This Southwest deal was found by Cheapflights users on 9/10. 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 10/213:10 pm -
2 stops7h 05m
Mon 10/262:00 pm -
1 stop4h 35m
Deal found 9/10![Southwest logo]()
$232
This Delta deal was found by Cheapflights users on 9/11. 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.
Thu 10/156:00 am -
1 stop3h 42m
Sat 10/175:14 pm -
1 stop5h 57m
Deal found 9/11![Delta logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 10/297:31 pm -
Nonstop2h 20m
Mon 11/26:43 pm -
Nonstop2h 20m
Deal found 9/13![Alaska Airlines logo]()
$252
This Southwest deal was found by Cheapflights users on 9/14. 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.
Mon 11/238:50 pm -
Nonstop2h 20m
Fri 11/276:35 am -
Nonstop2h 10m
Deal found 9/14![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 9/14. 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.
Fri 10/309:14 pm -
Nonstop2h 45m
Mon 11/24:24 pm -
Nonstop2h 50m
Deal found 9/14![Delta logo]()
$277
Last-minute flights from California to IdahoDiscover last-minute flight deals from California to Idaho. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from California to Idaho. Data last updated September 15, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 9/305:54 pm -
1 stop19h 01m
Mon 10/52:50 pm -
1 stop27h 09m
Deal found 9/11![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 10/18:24 pm -
1 stop16h 31m
Mon 10/52:50 pm -
1 stop18h 24m
Deal found 9/11![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 10/19:03 pm -
1 stop15h 52m
Mon 10/52:50 pm -
1 stop27h 09m
Deal found 9/11![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 10/12:30 pm -
1 stop22h 25m
Mon 10/52:50 pm -
1 stop19h 19m
Deal found 9/11![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/75:54 pm -
1 stop19h 01m
Mon 10/192:50 pm -
1 stop5h 59m
Deal found 9/10![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/75:54 pm -
1 stop19h 01m
Fri 10/162:50 pm -
1 stop26h 59m
Deal found 9/10![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/88:34 pm -
1 stop16h 21m
Mon 10/192:50 pm -
1 stop5h 59m
Deal found 9/10![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/88:34 pm -
1 stop16h 21m
Fri 10/162:50 pm -
1 stop26h 59m
Deal found 9/10![Frontier logo]()
$164
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 10/1310:29 am -
Nonstop2h 18m
Mon 10/197:37 pm -
Nonstop2h 21m
Deal found 9/10![Alaska Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 10/158:34 pm -
1 stop16h 21m
Mon 10/192:50 pm -
2 stops24h 39m
Deal found 9/11![Frontier logo]()
$161
This Expedia deal was found by Cheapflights users on 9/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:31 pm -
Nonstop2h 20m
Mon 10/192:50 pm -
1 stop5h 59m
Deal found 9/11![Multiple Airlines logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Thu 10/2210:19 pm -
1 stop14h 36m
Mon 10/262:50 pm -
1 stop24h 30m
Deal found 9/13![Frontier logo]()
$162
One-way flights from California to IdahoSearch for one-way flight options from California to Idaho. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from California to Idaho. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This Super.com deal was found by Cheapflights users on 9/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:20 pm -
1 stop19h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$62
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:15 pm -
1 stop19h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$63
This Trip.com deal was found by Cheapflights users on 9/10. 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.
Wed 11/45:15 pm -
1 stop19h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$65
This Super.com deal was found by Cheapflights users on 9/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:15 pm -
1 stop19h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/215:15 pm -
1 stop19h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 10/75:54 pm -
1 stop19h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$75
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Sat 10/315:15 pm -
1 stop20h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$77
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 11/104:20 pm -
Nonstop2h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Alaska Airlines logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 12/29:59 pm -
1 stop19h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 12/29:59 pm -
1 stop21h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 12/39:00 am -
1 stop8h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$84
This Travelocity deal was found by Cheapflights users on 9/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/109:59 pm -
1 stop19h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$85
Find flight deals from California to Idaho
Keep the following information in mind while searching for California to Idaho flight deals. Data was last updated September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $128 (Kiwi.com) |
One-way from | $62 (Super.com) |
Popular in | February |
Cheapest in | April |
Average price | $319 |
Good round-trip deal | $157 or less |
Good one-way deal | $91 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from California to Idaho 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 7,457,451 searches. Data last updated September 15, 2026.
Use the filters below to find and compare flights from California to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoBoise
SFO San Francisco - BOI Boise Air Term. Gowen Fld
SFOBOI
San Francisco
Wed 11/11
7:14 pm-1:54 pm
1 stop17h 40m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$89
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Tue 11/10
3:00 pm-10:52 pm
1 stop6h 52m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$89
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Mon 11/9
7:00 pm-1:25 am
1 stop5h 25m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$89
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Sat 11/7
6:15 am-12:16 pm
1 stop5h 01m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$89
Los AngelesBoise
LAX Los Angeles - BOI Boise Air Term. Gowen Fld
LAXBOI
Los Angeles
Sat 12/5
5:15 am-12:15 pm
1 stop6h 00m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$96
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Sat 10/17
10:29 am-1:47 pm
Nonstop2h 18m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$103
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Sun 11/22
8:50 pm-12:10 am
Nonstop2h 20m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$104
SacramentoSpokane
SMF Sacramento Intl - GEG Spokane
SMFGEG
Sacramento Intl
Sat 12/12
8:12 am-11:42 am
1 stop3h 30m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$108
SacramentoSpokane
SMF Sacramento Intl - GEG Spokane
SMFGEG
Sacramento Intl
Tue 12/8
12:05 pm-6:40 pm
1 stop6h 35m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$108
SacramentoSpokane
SMF Sacramento Intl - GEG Spokane
SMFGEG
Sacramento Intl
Thu 12/10
6:15 am-12:30 pm
1 stop6h 15m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$108
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from California to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from California with our price prediction graph.
SFO-BOI
SAN-BOI
ONT-BOI
LAX-BOI
SMF-GEG
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
USCA-USID
SFO-BOI
SAN-BOI
ONT-BOI
LAX-BOI
What is the cheapest month to book a flight from California to Idaho?
Currently, April is the cheapest month in which you can book a flight from California to Idaho (average of $281). Flying from California to Idaho in July is currently the most expensive (average of $377). 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 ID?
Find hourly flight availability from California to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2026.
A simple way to save on the total cost of your ticket is to fly from California to Idaho in the evening. If you’re flexible enough to do this you can expect to save up to 19% on your trip compared to booking a flight at noon.
Weekly flight availability from California to Idaho
Explore weekly flight availability from California to Idaho. 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 September 15, 2026.
The most flights from USCA to USID are scheduled on a Sunday (26 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (22 on average).
How much does it cost to fly round-trip from California to Idaho?
Airfare is typical for this route at the moment.
California to Idaho flights typically cost between $208 and $464 in October.The cheapest round-trip price found within the last 5 days was $208 on Multiple Airlines (Oct 2-Oct 5).
How far ahead should I book a flight from California to Idaho?
The best time to book flights from California to Idaho is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from California to Idaho?
Use this chart to determine the cheapest time to fly round-trip from California to Idaho. Price data was last updated on September 12, 2026.
Travelers seeking maximum savings on their California to Idaho flight should consider departing on Tuesday 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.
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated September 15, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta from California to Idaho to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from California to Idaho. 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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Alternative routes for California to Idaho
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from California to Idaho by cabin class
Find flights from California to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
California and Idaho flights
Browse other California and Idaho flight options. Last updated on September 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Idaho
Find the right flight back to California after your stay in Idaho
California to Idaho flights
Consider these flights traveling from California to Idaho.
Top 9 airlines flying from California to Idaho
Discover the top 9 airlines that operate flights from California to Idaho. 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 7,457,451 searches. Data last updated September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$108 | Average$421 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$111 | Average$212 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$118 | Average$252 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$125 | Average$346 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$132 | Average$246 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$134 | Average$395 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$155 | Average$344 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$256 | Average$306 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$307 | Average$567 | FlexibilityNo cancel fee | On-time71% |