$52+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LAX
Jun 1 — Jun 81
Round-trip
1 adult, Economy
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Find cheap flights from Idaho to California with Cheapflights
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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 May 2, 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 May 2, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 5/267:01 am
GEG
- SAN
Nonstop2h 49m
Alaska Airlines
Fri 5/296:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$139
This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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 6/118:47 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Sun 6/145:36 pm
LAS
- GEG
Nonstop2h 21m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$142
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 6/48:47 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Thu 6/185:36 pm
LAS
- GEG
Nonstop2h 21m
Allegiant Air
Deal found 4/29![Allegiant Air logo]()
$143
This Southwest deal was found by Cheapflights users on 4/29. 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 6/45:30 pm
GEG
- SAN
1 stop4h 25m
Southwest
Sun 6/73:25 pm
SAN
- GEG
Nonstop2h 35m
Southwest
Deal found 4/29![Southwest logo]()
$143
This Southwest deal was found by Cheapflights users on 4/28. 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 5/295:35 pm
GEG
- SAN
1 stop4h 00m
Southwest
Sat 5/309:40 am
SAN
- GEG
Nonstop2h 45m
Southwest
Deal found 4/28![Southwest logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/318:45 pm
GEG
- LAS
Nonstop2h 15m
Allegiant Air
Thu 6/185:36 pm
LAS
- GEG
Nonstop2h 21m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$146
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 8/69:14 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Sun 8/96:00 pm
LAS
- GEG
Nonstop2h 24m
Allegiant Air
Deal found 4/28![Allegiant Air logo]()
$149
This Southwest deal was found by Cheapflights users on 5/1. 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 5/2311:05 am
GEG
- SAN
Nonstop2h 40m
Southwest
Tue 5/264:25 pm
SAN
- GEG
1 stop6h 30m
Southwest
Deal found 5/1![Southwest logo]()
$149
This Delta deal was found by Cheapflights users on 4/28. 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 7/97:08 pm
GEG
- SAN
1 stop4h 42m
Delta
Wed 7/159:46 am
SAN
- GEG
1 stop6h 22m
Delta
Deal found 4/28![Delta logo]()
$153
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 4/30![Allegiant Air logo]()
$156
This Delta deal was found by Cheapflights users on 4/30. 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 6/111:05 am
GEG
- SAN
1 stop7h 00m
Delta
Mon 6/84:03 pm
SAN
- GEG
1 stop5h 06m
Delta
Deal found 4/30![Delta logo]()
$156
This Southwest deal was found by Cheapflights users on 4/30. 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 8/175:30 am
GEG
- SAN
1 stop6h 45m
Southwest
Wed 8/191:45 pm
SAN
- GEG
2 stops8h 20m
Southwest
Deal found 4/30![Southwest logo]()
$158
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 May 2, 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 May 2, 2026.
This Southwest deal was found by Cheapflights users on 4/28. 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 6/512:55 pm
GEG
- SAN
Nonstop2h 40m
Southwest
Mon 6/88:40 am
SAN
- GEG
1 stop4h 10m
Southwest
Deal found 4/28![Southwest logo]()
$143
This Delta deal was found by Cheapflights users on 5/1. 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 7/29:20 am
GEG
- SAN
1 stop5h 44m
Delta
Mon 7/611:05 am
SAN
- GEG
1 stop8h 12m
Delta
Deal found 5/1![Delta logo]()
$153
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Tue 6/27:00 am
BOI
- LAX
Nonstop2h 33m
United Airlines
Sat 6/64:39 pm
LAX
- BOI
1 stop6h 16m
United Airlines
Deal found 5/1![United Airlines logo]()
$187
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 8/297:00 am
GEG
- SAN
Nonstop2h 54m
Alaska Airlines
Tue 9/14:12 pm
SAN
- GEG
1 stop7h 02m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$196
This Southwest deal was found by Cheapflights users on 4/29. 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 6/146:40 pm
GEG
- SAN
1 stop4h 35m
Southwest
Sun 6/218:10 pm
SAN
- GEG
1 stop4h 35m
Southwest
Deal found 4/29![Southwest logo]()
$153
This Delta deal was found by Cheapflights users on 5/1. 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 5/277:25 am
GEG
- SAN
1 stop7h 23m
Delta
Fri 5/293:45 pm
SAN
- GEG
1 stop5h 28m
Delta
Deal found 5/1![Delta logo]()
$159
This Delta deal was found by Cheapflights users on 4/30. 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 8/233:05 pm
GEG
- SAN
1 stop7h 43m
Delta
Sat 8/297:00 am
SAN
- GEG
1 stop7h 46m
Delta
Deal found 4/30![Delta logo]()
$173
This United Airlines deal was found by Cheapflights users on 4/30. 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 5/307:05 pm
BOI
- LAX
1 stop4h 39m
United Airlines
Sat 6/64:39 pm
LAX
- BOI
1 stop6h 16m
United Airlines
Deal found 4/30![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 4/30. 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 9/227:30 am
GEG
- LAX
1 stop5h 35m
Southwest
Tue 9/293:25 pm
LAX
- GEG
2 stops7h 30m
Southwest
Deal found 4/30![Southwest logo]()
$192
This Alaska Airlines deal was found by Cheapflights users on 5/1. 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 5/305:00 am
GEG
- LAX
1 stop6h 49m
Alaska Airlines
Tue 6/28:13 pm
LAX
- GEG
Nonstop2h 39m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 4/29. 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 5/216:25 am
GEG
- LAX
Nonstop2h 50m
Delta
Sun 5/248:40 pm
LAX
- GEG
Nonstop2h 38m
Delta
Deal found 4/29![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 4/27. 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 6/245:35 am
GEG
- SAN
1 stop5h 30m
Southwest
Sat 6/275:30 pm
SAN
- GEG
1 stop6h 35m
Southwest
Deal found 4/27![Southwest logo]()
$206
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 9/176:00 am
GEG
- SAN
Nonstop2h 59m
Alaska Airlines
Sun 9/206:15 am
SAN
- GEG
1 stop6h 24m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 4/27. 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 6/44:13 pm
GEG
- LAX
Nonstop2h 49m
Delta
Mon 6/89:25 pm
LAX
- GEG
Nonstop2h 40m
Delta
Deal found 4/27![Delta logo]()
$197
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/297:05 pm
BOI
- SAN
1 stop6h 25m
United Airlines
Sat 5/309:07 am
SAN
- BOI
1 stop6h 37m
United Airlines
Deal found 4/28![United Airlines logo]()
$239
This Alaska Airlines deal was found by Cheapflights users on 5/1. 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 5/301:59 pm
GEG
- LAS
1 stop6h 36m
Alaska Airlines
Sat 6/66:00 am
LAS
- GEG
1 stop7h 04m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$231
This Southwest deal was found by Cheapflights users on 5/1. 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 6/66:40 am
BOI
- SAN
Nonstop2h 10m
Southwest
Sat 6/62:45 pm
SAN
- BOI
1 stop7h 10m
Southwest
Deal found 5/1![Southwest logo]()
$213
This United Airlines deal was found by Cheapflights users on 4/28. 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 6/57:00 am
BOI
- LAX
Nonstop2h 33m
United Airlines
Sun 6/76:57 pm
LAX
- BOI
Nonstop2h 08m
United Airlines
Deal found 4/28![United Airlines logo]()
$247
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 9/2210:14 am
BOI
- LAX
1 stop7h 58m
Alaska Airlines
Tue 9/227:51 pm
LAX
- BOI
Nonstop2h 09m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$233
This Delta deal was found by Cheapflights users on 4/27. 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 5/164:15 pm
GEG
- SAN
1 stop6h 11m
Delta
Sun 5/247:15 am
SAN
- GEG
1 stop8h 16m
Delta
Deal found 4/27![Delta logo]()
$219
This Southwest deal was found by Cheapflights users on 5/1. 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 6/55:10 am
BOI
- SFO
1 stop7h 50m
Southwest
Mon 6/85:00 am
SFO
- BOI
1 stop5h 25m
Southwest
Deal found 5/1![Southwest logo]()
$227
This United Airlines deal was found by Cheapflights users on 5/1. 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 6/36:30 am
BOI
- SFO
Nonstop2h 00m
United Airlines
Sun 6/71:54 pm
SFO
- BOI
Nonstop1h 50m
United Airlines
Deal found 5/1![United Airlines logo]()
$255
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 5/2310:00 am
BOI
- SJC
Nonstop1h 53m
Alaska Airlines
Sun 5/247:59 pm
SJC
- BOI
Nonstop1h 44m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 4/27. 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 5/2112:55 pm
BOI
- SJC
1 stop4h 14m
Delta
Thu 5/282:51 pm
SJC
- BOI
1 stop6h 22m
Delta
Deal found 4/27![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 4/28. 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 6/56:00 am
GEG
- SFO
Nonstop2h 28m
United Airlines
Sun 6/78:10 am
SFO
- GEG
Nonstop2h 17m
United Airlines
Deal found 4/28![United Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 4/29. 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 5/298:50 am
BOI
- SAN
Nonstop2h 15m
Southwest
Sat 5/305:55 pm
SAN
- BOI
1 stop4h 20m
Southwest
Deal found 4/29![Southwest logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 5/1. 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 8/259:49 am
BOI
- BUR
Nonstop2h 14m
Alaska Airlines
Wed 8/2611:40 am
BUR
- BOI
Nonstop2h 10m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$244
This Delta deal was found by Cheapflights users on 4/30. 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 5/2710:39 am
BOI
- SJC
1 stop7h 26m
Delta
Sat 5/307:00 am
SJC
- BOI
1 stop6h 34m
Delta
Deal found 4/30![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 5/1. 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 5/2410:35 am
BOI
- SFO
Nonstop2h 00m
United Airlines
Sat 5/301:54 pm
SFO
- BOI
Nonstop1h 50m
United Airlines
Deal found 5/1![United Airlines logo]()
$261
This Southwest deal was found by Cheapflights users on 5/1. 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 8/176:55 am
GEG
- SAN
1 stop4h 20m
Southwest
Sat 8/226:55 am
SAN
- GEG
1 stop5h 10m
Southwest
Deal found 5/1![Southwest logo]()
$246
Last-minute flights from Idaho to CaliforniaDiscover last-minute flight deals from Idaho to California. Data last updated May 2, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to California. Data last updated May 2, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 5/1. 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 5/2311:05 am
GEG
- SAN
Nonstop2h 40m
Southwest
Tue 5/264:25 pm
SAN
- GEG
1 stop6h 30m
Southwest
Deal found 5/1![Southwest logo]()
$149
This Delta deal was found by Cheapflights users on 4/28. 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 5/235:37 pm
GEG
- SAN
1 stop4h 49m
Delta
Fri 5/293:45 pm
SAN
- GEG
1 stop5h 28m
Delta
Deal found 4/28![Delta logo]()
$159
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 5/267:01 am
GEG
- SAN
Nonstop2h 49m
Alaska Airlines
Fri 5/296:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$139
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 5/288:45 pm
GEG
- LAS
Nonstop2h 15m
Allegiant Air
Thu 6/45:36 pm
LAS
- GEG
Nonstop2h 21m
Allegiant Air
Deal found 4/30![Allegiant Air logo]()
$162
This Southwest deal was found by Cheapflights users on 4/28. 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 5/295:35 pm
GEG
- SAN
1 stop4h 00m
Southwest
Sat 5/309:40 am
SAN
- GEG
Nonstop2h 45m
Southwest
Deal found 4/28![Southwest logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/318:45 pm
GEG
- LAS
Nonstop2h 15m
Allegiant Air
Thu 6/185:36 pm
LAS
- GEG
Nonstop2h 21m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$146
This Delta deal was found by Cheapflights users on 4/30. 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 6/111:05 am
GEG
- SAN
1 stop7h 00m
Delta
Mon 6/84:03 pm
SAN
- GEG
1 stop5h 06m
Delta
Deal found 4/30![Delta logo]()
$156
This Southwest deal was found by Cheapflights users on 4/27. 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 6/22:40 pm
GEG
- SAN
2 stops6h 50m
Southwest
Mon 6/87:00 pm
SAN
- GEG
1 stop5h 30m
Southwest
Deal found 4/27![Southwest logo]()
$161
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 6/48:47 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Thu 6/185:36 pm
LAS
- GEG
Nonstop2h 21m
Allegiant Air
Deal found 4/29![Allegiant Air logo]()
$143
This Southwest deal was found by Cheapflights users on 4/28. 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 6/45:30 pm
GEG
- SAN
1 stop4h 25m
Southwest
Sun 6/73:25 pm
SAN
- GEG
Nonstop2h 35m
Southwest
Deal found 4/28![Southwest logo]()
$143
This Delta deal was found by Cheapflights users on 4/28. 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 6/45:00 am
GEG
- SAN
1 stop5h 04m
Delta
Mon 6/87:00 am
SAN
- GEG
1 stop4h 52m
Delta
Deal found 4/28![Delta logo]()
$153
This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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 6/118:47 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Sun 6/145:36 pm
LAS
- GEG
Nonstop2h 21m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$142
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 May 2, 2026.
Search for one-way flight options from Idaho to California. Find affordable one-way fares based on user searches. Data last updated May 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/118:47 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$52
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 6/288:47 pm
GEG
- LAS
Nonstop2h 21m
Allegiant Air
Deal found 4/30![Allegiant Air logo]()
$56
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 10/257:20 pm
GEG
- LAS
Nonstop2h 23m
Allegiant Air
Deal found 4/30![Allegiant Air logo]()
$57
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/248:45 pm
GEG
- LAS
Nonstop2h 15m
Allegiant Air
Deal found 4/29![Allegiant Air logo]()
$60
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 6/57:01 am
GEG
- SAN
Nonstop2h 49m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$67
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 4/30![Allegiant Air logo]()
$70
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 5/267:01 am
GEG
- SAN
Nonstop2h 49m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$70
This Super.com deal was found by Cheapflights users on 4/28. 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.
Sun 5/109:19 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Deal found 4/28![Allegiant Air logo]()
$72
This Super.com deal was found by Cheapflights users on 5/1. 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.
Sun 5/241:25 pm
BOI
- LAS
1 stop23h 10m
Frontier
Deal found 5/1![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 7/268:51 pm
GEG
- LAS
Nonstop2h 16m
Allegiant Air
Deal found 4/27![Allegiant Air logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/288:45 pm
GEG
- LAS
Nonstop2h 15m
Allegiant Air
Deal found 4/28![Allegiant Air logo]()
$76
This Delta deal was found by Cheapflights users on 4/28. 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 6/195:10 pm
GEG
- SAN
1 stop6h 42m
Delta
Deal found 4/28![Delta logo]()
$77
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 May 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $139 (Alaska Airlines) |
One-way from | $52 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $257 |
Good round-trip deal | $151 or less |
Good one-way deal | $75 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 May 2, 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
SpokaneSan Diego
GEG - SAN
GEGSAN
Spokane
Fri 6/5
12:55 pm-3:35 pm
Nonstop2h 40m
San Diego
Mon 6/8
8:40 am-12:50 pm
1 stop4h 10m
$143
SpokaneSan Diego
GEG - SAN
GEGSAN
Spokane
Thu 7/2
9:20 am-3:04 pm
1 stop5h 44m
San Diego
Mon 7/6
11:05 am-7:17 pm
1 stop8h 12m
$153
SpokaneSan Diego
GEG - SAN
GEGSAN
Spokane
Sun 6/14
6:40 pm-11:15 pm
1 stop4h 35m
San Diego
Sun 6/21
8:10 pm-12:45 am
1 stop4h 35m
$153
SpokaneSan Diego
GEG - SAN
GEGSAN
Spokane
Wed 5/27
7:25 am-2:48 pm
1 stop7h 23m
San Diego
Fri 5/29
3:45 pm-9:13 pm
1 stop5h 28m
$159
SpokaneSan Diego
GEG - SAN
GEGSAN
Spokane
Sun 8/23
3:05 pm-10:48 pm
1 stop7h 43m
San Diego
Sat 8/29
7:00 am-2:46 pm
1 stop7h 46m
$173
BoiseLos Angeles
BOI - LAX
BOILAX
Boise Air Term. Gowen Fld
Tue 6/2
7:00 am-8:33 am
Nonstop2h 33m
Los Angeles
Sat 6/6
4:39 pm-11:55 pm
1 stop6h 16m
$187
SpokaneLos Angeles
GEG - LAX
GEGLAX
Spokane
Tue 9/22
7:30 am-1:05 pm
1 stop5h 35m
Los Angeles
Tue 9/29
3:25 pm-10:55 pm
2 stops7h 30m
$192
SpokaneSan Diego
GEG - SAN
GEGSAN
Spokane
Sat 8/29
7:00 am-9:54 am
Nonstop2h 54m
San Diego
Tue 9/1
4:12 pm-11:14 pm
1 stop7h 02m
$196
BoiseLos Angeles
BOI - LAX
BOILAX
Boise Air Term. Gowen Fld
Sat 5/30
7:05 pm-10:44 pm
1 stop4h 39m
Los Angeles
Sat 6/6
4:39 pm-11:55 pm
1 stop6h 16m
$197
SpokaneLos Angeles
GEG - LAX
GEGLAX
Spokane
Thu 5/21
6:25 am-9:15 am
Nonstop2h 50m
Los Angeles
Sun 5/24
8:40 pm-11:18 pm
Nonstop2h 38m
$197
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-SAN
BOI-LAS
BOI-LAX
GEG-LAX
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-SAN
BOI-LAS
BOI-LAX
How far ahead should I book a flight from Idaho to California?
Booking 48 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 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 $303). Flying from Idaho to California in July is currently the most expensive (average of $863). 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 May 2, 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 16% versus a flight in the morning.
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 May 2, 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 May 2, 2026.
The most flights from USID to USCA are scheduled on a Saturday (26 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (11 on average).
How much does it cost to fly round-trip from Idaho to California?
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 May 2, 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
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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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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 May 2, 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 May 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$58 | Average$175 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$63 | Average$229 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$68 | Average$361 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$90 | Average$182 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$117 | Average$324 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$123 | Average$370 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$147 | Average$302 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$307 | Average$647 | FlexibilityNo cancel fee | On-time71% |