$43+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LAX
Jul 15 — Jul 221
Round-trip
1 adult, Economy
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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 June 15, 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 June 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 9/1010:09 am
GEG
- LAS
Nonstop2h 18m
Allegiant Air
Sun 9/137:00 am
LAS
- GEG
Nonstop2h 19m
Allegiant Air
Deal found 6/10![Allegiant Air logo]()
$118
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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 8/2010:12 am
GEG
- LAS
Nonstop2h 23m
Allegiant Air
Sun 8/237:00 am
LAS
- GEG
Nonstop2h 22m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$124
This Cheapflightsfares deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/99:14 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Sun 8/166:00 pm
LAS
- GEG
Nonstop2h 24m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$126
This Cheapflightsfares deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:09 am
GEG
- LAS
Nonstop2h 18m
Allegiant Air
Sun 9/277:00 am
LAS
- GEG
Nonstop2h 19m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$127
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
Thu 7/238:51 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Sun 7/265:39 pm
LAS
- GEG
Nonstop2h 22m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$128
This Cheapflightsfares deal was found by Cheapflights users on 6/15. 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 8/139:14 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Sun 8/166:00 pm
LAS
- GEG
Nonstop2h 24m
Allegiant Air
Deal found 6/15![Allegiant Air logo]()
$131
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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 7/168:51 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Thu 7/305:39 pm
LAS
- GEG
Nonstop2h 22m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$137
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:09 am
GEG
- LAS
Nonstop2h 18m
Allegiant Air
Sun 9/67:00 am
LAS
- GEG
Nonstop2h 19m
Allegiant Air
Deal found 6/10![Allegiant Air logo]()
$138
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 10/278:57 am
BOI
- SFO
Nonstop1h 58m
Alaska Airlines
Wed 11/116:35 pm
SFO
- BOI
Nonstop1h 46m
Alaska Airlines
Deal found 6/12![Alaska Airlines logo]()
$141
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 11/1712:57 pm
GEG
- SFO
Nonstop2h 23m
Alaska Airlines
Wed 11/182:09 pm
SFO
- GEG
Nonstop2h 16m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$141
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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 9/1310:09 am
GEG
- LAS
Nonstop2h 18m
Allegiant Air
Sun 9/207:00 am
LAS
- GEG
Nonstop2h 19m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$142
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 9/17:03 am
GEG
- SAN
Nonstop2h 51m
Alaska Airlines
Wed 9/27:59 pm
SAN
- GEG
Nonstop2h 50m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$143
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 June 15, 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 June 15, 2026.
This Delta deal was found by Cheapflights users on 6/11. 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.
Tue 8/2511:12 am
BOI
- BUR
1 stop5h 56m
Delta
Wed 9/97:05 am
BUR
- BOI
1 stop6h 29m
Delta
Deal found 6/11![Delta logo]()
$169
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:15 am
GEG
- SAN
Nonstop2h 48m
American Airlines
Tue 8/188:22 pm
SAN
- GEG
Nonstop2h 45m
American Airlines
Deal found 6/10![American Airlines logo]()
$185
This Alaska Airlines deal was found by Cheapflights users on 6/15. 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 11/75:05 pm
GEG
- LAX
Nonstop2h 55m
Alaska Airlines
Mon 11/93:10 pm
LAX
- GEG
1 stop7h 46m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$197
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 8/136:15 am
BOI
- SMF
1 stop4h 18m
United Airlines
Tue 8/251:47 pm
SMF
- BOI
1 stop6h 37m
United Airlines
Deal found 6/11![United Airlines logo]()
$202
This Southwest deal was found by Cheapflights users on 6/11. 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 9/243:45 pm
BOI
- SAN
Nonstop2h 15m
Southwest
Sun 9/2710:40 am
SAN
- BOI
Nonstop2h 15m
Southwest
Deal found 6/11![Southwest logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Sun 10/115:00 pm
GEG
- LAS
Nonstop2h 23m
Multiple Airlines
Mon 10/127:00 am
LAS
- GEG
1 stop4h 50m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 6/14. 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 9/15:00 pm
BOI
- LAX
Nonstop2h 23m
Delta
Sat 9/57:57 pm
LAX
- BOI
Nonstop2h 02m
Delta
Deal found 6/14![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:30 am
GEG
- LAX
Nonstop2h 54m
Delta
Sat 9/199:17 pm
LAX
- GEG
Nonstop2h 38m
Delta
Deal found 6/15![Delta logo]()
$197
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Thu 8/208:15 am
BOI
- SFO
Nonstop2h 03m
United Airlines
Sat 8/226:30 pm
SFO
- BOI
Nonstop1h 54m
United Airlines
Deal found 6/12![United Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 6/14. 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 9/12:40 pm
BOI
- LAX
1 stop5h 10m
Southwest
Sat 9/55:20 am
LAX
- BOI
1 stop6h 40m
Southwest
Deal found 6/14![Southwest logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 6/13. 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 9/15:52 am
GEG
- SAN
1 stop5h 53m
Alaska Airlines
Wed 9/27:59 pm
SAN
- GEG
Nonstop2h 50m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$225
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:19 pm
GEG
- LAX
Nonstop2h 54m
Delta
Sun 9/279:17 pm
LAX
- GEG
Nonstop2h 38m
Delta
Deal found 6/15![Delta logo]()
$197
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Wed 7/157:05 pm
BOI
- LAS
1 stop5h 05m
United Airlines
Wed 7/2211:30 am
LAS
- BOI
1 stop4h 14m
United Airlines
Deal found 6/14![United Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 6/14. 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.
Wed 8/263:40 pm
BOI
- SAN
2 stops6h 25m
Southwest
Sun 8/308:40 am
SAN
- BOI
1 stop4h 05m
Southwest
Deal found 6/14![Southwest logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 6/15. 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.
Tue 9/296:23 am
BOI
- BUR
1 stop5h 55m
Alaska Airlines
Wed 9/307:03 am
BUR
- BOI
1 stop7h 27m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 6/14. 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 7/256:40 am
BOI
- SAN
Nonstop2h 10m
Southwest
Tue 7/2810:15 am
SAN
- BOI
Nonstop2h 10m
Southwest
Deal found 6/14![Southwest logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 9/198:03 am
BOI
- LAX
1 stop5h 53m
Alaska Airlines
Tue 9/2212:45 pm
LAX
- BOI
1 stop6h 50m
Alaska Airlines
Deal found 6/12![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2711:53 am
BOI
- LAS
1 stop5h 02m
Delta
Fri 7/317:55 pm
LAS
- BOI
1 stop3h 10m
Delta
Deal found 6/15![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 6/11. 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.
Sun 8/236:30 am
BOI
- LAX
1 stop6h 15m
Southwest
Wed 8/268:25 am
LAX
- BOI
1 stop4h 15m
Southwest
Deal found 6/11![Southwest logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 6/15. 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.
Tue 9/225:52 am
GEG
- LAX
1 stop7h 04m
Alaska Airlines
Sun 9/274:50 pm
LAX
- GEG
1 stop5h 35m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$237
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 7/116:30 am
BOI
- SFO
Nonstop2h 00m
United Airlines
Wed 7/158:59 pm
SFO
- BOI
Nonstop1h 56m
United Airlines
Deal found 6/11![United Airlines logo]()
$272
This Southwest deal was found by Cheapflights users on 6/11. 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 7/151:35 pm
GEG
- LAX
1 stop7h 40m
Southwest
Tue 7/213:40 pm
LAX
- GEG
1 stop7h 05m
Southwest
Deal found 6/11![Southwest logo]()
$227
This Delta deal was found by Cheapflights users on 6/13. 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 9/86:22 am
GEG
- LAX
Nonstop2h 48m
Delta
Mon 10/59:17 pm
LAX
- GEG
Nonstop2h 38m
Delta
Deal found 6/13![Delta logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 9/11:27 pm
GEG
- LAX
1 stop5h 19m
Alaska Airlines
Sat 9/56:29 pm
LAX
- GEG
1 stop4h 42m
Alaska Airlines
Deal found 6/12![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 6/13. 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 10/175:20 am
GEG
- SAN
1 stop7h 18m
Delta
Fri 10/2311:05 am
SAN
- GEG
1 stop6h 04m
Delta
Deal found 6/13![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 6/13. 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 6/257:25 pm
GEG
- SAN
1 stop5h 05m
United Airlines
Sat 6/271:39 pm
SAN
- GEG
1 stop5h 15m
United Airlines
Deal found 6/13![United Airlines logo]()
$279
This Southwest deal was found by Cheapflights users on 6/10. 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 7/82:05 pm
BOI
- LAS
1 stop8h 15m
Southwest
Wed 7/159:45 pm
LAS
- BOI
Nonstop1h 45m
Southwest
Deal found 6/10![Southwest logo]()
$233
This Alaska Airlines deal was found by Cheapflights users on 6/15. 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 9/261:36 pm
GEG
- LAS
1 stop6h 34m
Alaska Airlines
Wed 9/3010:23 am
LAS
- GEG
1 stop13h 30m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$239
This Delta deal was found by Cheapflights users on 6/12. 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.
Sat 8/226:00 am
BOI
- SFO
1 stop3h 50m
Delta
Mon 8/315:50 am
SFO
- BOI
1 stop5h 24m
Delta
Deal found 6/12![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 6/13. 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.
Thu 8/137:00 am
BOI
- SMF
Nonstop1h 25m
Southwest
Tue 8/252:00 pm
SMF
- BOI
1 stop4h 45m
Southwest
Deal found 6/13![Southwest logo]()
$238
Last-minute flights from Idaho to CaliforniaDiscover last-minute flight deals from Idaho to California. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to California. Data last updated June 15, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:51 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Thu 7/95:39 pm
LAS
- GEG
Nonstop2h 22m
Allegiant Air
Deal found 6/10![Allegiant Air logo]()
$156
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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 7/28:51 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Thu 7/235:39 pm
LAS
- GEG
Nonstop2h 22m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$184
This Southwest deal was found by Cheapflights users on 6/12. 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.
Sat 7/47:00 am
BOI
- SAN
2 stops7h 00m
Southwest
Tue 7/74:00 pm
SAN
- BOI
2 stops7h 30m
Southwest
Deal found 6/12![Southwest logo]()
$207
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
Thu 7/98:51 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Thu 7/165:39 pm
LAS
- GEG
Nonstop2h 22m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$193
This United Airlines deal was found by Cheapflights users on 6/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:05 pm
BOI
- SAN
1 stop6h 26m
United Airlines
Sat 8/111:44 am
SAN
- BOI
1 stop7h 21m
United Airlines
Deal found 6/15![United Airlines logo]()
$211
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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 7/168:51 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Thu 7/305:39 pm
LAS
- GEG
Nonstop2h 22m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$137
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
Thu 7/238:51 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Sun 7/265:39 pm
LAS
- GEG
Nonstop2h 22m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$128
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
Thu 7/238:51 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Thu 7/305:39 pm
LAS
- GEG
Nonstop2h 22m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$150
This Trip.com deal was found by Cheapflights users on 6/10. 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 7/2910:52 am
BOI
- SFO
Nonstop1h 57m
Alaska Airlines
Tue 8/47:25 pm
SFO
- BOI
Nonstop1h 42m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$183
This Southwest deal was found by Cheapflights users on 6/10. 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 7/295:30 am
BOI
- SFO
1 stop7h 05m
Southwest
Tue 8/411:15 am
SFO
- BOI
1 stop7h 30m
Southwest
Deal found 6/10![Southwest logo]()
$204
This SmartFares deal was found by Cheapflights users on 6/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:15 am
GEG
- SAN
Nonstop2h 48m
Alaska Airlines
Wed 8/58:22 pm
SAN
- GEG
Nonstop2h 45m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$215
This Cheapflightsfares deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:51 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Sun 8/25:39 pm
LAS
- GEG
Nonstop2h 22m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$196
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 June 15, 2026.
Search for one-way flight options from Idaho to California. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 9/610:09 am
GEG
- LAS
Nonstop2h 18m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$43
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Thu 9/1010:09 am
GEG
- LAS
Nonstop2h 18m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$51
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 9/1310:09 am
GEG
- LAS
Nonstop2h 18m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$55
This Frontier deal was found by Cheapflights users on 6/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:52 pm
BOI
- LAS
Nonstop1h 51m
Frontier
Deal found 6/10![Frontier logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 11/17:20 pm
GEG
- LAS
Nonstop2h 23m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$60
This Priceline deal was found by Cheapflights users on 6/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:52 pm
BOI
- LAS
Nonstop1h 51m
Frontier
Deal found 6/14![Frontier logo]()
$64
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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 9/2010:09 am
GEG
- LAS
Nonstop2h 18m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/168:51 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Deal found 6/10![Allegiant Air logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 8/99:14 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 8/139:14 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$71
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 9/96:00 am
GEG
- SAN
Nonstop2h 59m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$72
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Thu 8/2710:12 am
GEG
- LAS
Nonstop2h 23m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$73
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 June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $118 (Kiwi.com) |
One-way from | $43 (Kiwi.com) |
Popular in | March |
Cheapest in | January |
Average price | $324 |
Good round-trip deal | $177 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 June 15, 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
BoiseBurbank
BOI - BUR
BOIBUR
Boise Air Term. Gowen Fld
Tue 8/25
11:12 am-4:08 pm
1 stop5h 56m
Burbank Bob Hope
Wed 9/9
7:05 am-2:34 pm
1 stop6h 29m
$169
SpokaneSan Diego
GEG - SAN
GEGSAN
Spokane
Tue 8/11
8:15 am-11:03 am
Nonstop2h 48m
San Diego
Tue 8/18
8:22 pm-11:07 pm
Nonstop2h 45m
$185
SpokaneLos Angeles
GEG - LAX
GEGLAX
Spokane
Sat 11/7
5:05 pm-8:00 pm
Nonstop2h 55m
Los Angeles
Mon 11/9
3:10 pm-10:56 pm
1 stop7h 46m
$197
BoiseLos Angeles
BOI - LAX
BOILAX
Boise Air Term. Gowen Fld
Tue 9/1
5:00 pm-6:23 pm
Nonstop2h 23m
Los Angeles
Sat 9/5
7:57 pm-10:59 pm
Nonstop2h 02m
$197
SpokaneLos Angeles
GEG - LAX
GEGLAX
Spokane
Sun 9/13
6:30 am-9:24 am
Nonstop2h 54m
Los Angeles
Sat 9/19
9:17 pm-11:55 pm
Nonstop2h 38m
$197
SpokaneLos Angeles
GEG - LAX
GEGLAX
Spokane
Tue 9/22
4:19 pm-7:13 pm
Nonstop2h 54m
Los Angeles
Sun 9/27
9:17 pm-11:55 pm
Nonstop2h 38m
$197
BoiseSacramento
BOI - SMF
BOISMF
Boise Air Term. Gowen Fld
Thu 8/13
6:15 am-9:33 am
1 stop4h 18m
Sacramento Intl
Tue 8/25
1:47 pm-9:24 pm
1 stop6h 37m
$202
BoiseSan Diego
BOI - SAN
BOISAN
Boise Air Term. Gowen Fld
Thu 9/24
3:45 pm-5:00 pm
Nonstop2h 15m
San Diego
Sun 9/27
10:40 am-1:55 pm
Nonstop2h 15m
$212
BoiseSan Francisco
BOI - SFO
BOISFO
Boise Air Term. Gowen Fld
Thu 8/20
8:15 am-9:18 am
Nonstop2h 03m
San Francisco
Sat 8/22
6:30 pm-9:24 pm
Nonstop1h 54m
$217
BoiseLos Angeles
BOI - LAX
BOILAX
Boise Air Term. Gowen Fld
Tue 9/1
2:40 pm-6:50 pm
1 stop5h 10m
Los Angeles
Sat 9/5
5:20 am-1:00 pm
1 stop6h 40m
$217
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.
BOI-BUR
GEG-SAN
GEG-LAX
BOI-SMF
BOI-SAN
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
BOI-BUR
GEG-SAN
GEG-LAX
BOI-SMF
What is the cheapest month to book a flight from Idaho to California?
Currently, April is the cheapest month in which you can book a flight from Idaho to California (average of $302). Flying from Idaho to California in July is currently the most expensive (average of $657). 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 June 15, 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 at noon, which can drop the price by up to 17% versus a flight in the morning.
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 June 15, 2026.
The most flights from USID to USCA are scheduled on a Tuesday (30 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (28 on average).
How much does it cost to fly round-trip from Idaho to California?
How far ahead should I book a flight from Idaho to California?
Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from Idaho to California. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 June 13, 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.
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 June 15, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, 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.
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - 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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Complete your trip
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Return Flight Options
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 June 15, 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 June 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$68 | Average$206 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$78 | Average$373 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$90 | Average$205 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$121 | Average$331 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$125 | Average$376 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$147 | Average$312 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$151 | Average$225 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$327 | Average$647 | FlexibilityNo cancel fee | On-time71% |