$75+ Cheap flights from San Jose, CA (SJC) to Idaho
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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — BOI
Aug 30 — Sep 61
Round-trip
1 adult, Economy
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Cheapest flights from San Jose to IdahoExplore the most affordable flight options available from San Jose to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2026.
Explore the most affordable flight options available from San Jose to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/1310:47 pm
SJC
- BOI
1 stop14h 08m
Frontier
Sun 9/202:50 pm
BOI
- SJC
1 stop8h 02m
Frontier
Deal found 7/30![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Thu 9/1710:47 pm
SJC
- BOI
1 stop14h 08m
Frontier
Sun 9/202:50 pm
BOI
- SJC
1 stop8h 02m
Frontier
Deal found 7/30![Frontier logo]()
$182
This CheapTickets deal was found by Cheapflights users on 7/29. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:02 am
SJC
- BOI
1 stop6h 28m
Alaska Airlines
Sat 9/196:49 pm
BOI
- SJC
1 stop5h 07m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$196
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 10/96:18 pm
SJC
- BOI
Nonstop1h 42m
Alaska Airlines
Sat 10/107:20 am
BOI
- SJC
Nonstop1h 57m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 10/69:44 am
SJC
- BOI
1 stop6h 23m
Alaska Airlines
Sun 10/117:20 am
BOI
- SJC
Nonstop1h 57m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$207
This CheapTickets deal was found by Cheapflights users on 7/27. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:49 pm
SJC
- BOI
Nonstop1h 36m
Alaska Airlines
Sat 9/122:16 pm
BOI
- SJC
1 stop6h 44m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$211
This Southwest deal was found by Cheapflights users on 7/30. 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.
Fri 9/1110:40 am
SJC
- BOI
Nonstop1h 35m
Southwest
Sat 9/1212:55 pm
BOI
- SJC
2 stops7h 35m
Southwest
Deal found 7/30![Southwest logo]()
$212
This Orbitz deal was found by Cheapflights users on 7/29. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:07 pm
SJC
- BOI
Nonstop1h 48m
Alaska Airlines
Sun 11/88:00 am
BOI
- SJC
Nonstop1h 59m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$214
This Southwest deal was found by Cheapflights users on 7/28. 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.
Mon 8/171:35 pm
SJC
- GEG
Nonstop2h 00m
Southwest
Sat 8/223:15 pm
GEG
- SJC
Nonstop2h 10m
Southwest
Deal found 7/28![Southwest logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Sat 8/292:25 pm
SJC
- GEG
1 stop8h 24m
Alaska Airlines
Tue 9/17:03 am
GEG
- SJC
1 stop11h 01m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$223
This Delta deal was found by Cheapflights users on 7/28. 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.
Wed 8/195:50 pm
SJC
- GEG
1 stop6h 09m
Delta
Tue 8/251:00 pm
GEG
- SJC
1 stop7h 13m
Delta
Deal found 7/28![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 7/28. 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.
Sat 11/710:40 am
SJC
- GEG
2 stops10h 30m
Southwest
Wed 11/117:40 am
GEG
- SJC
1 stop4h 35m
Southwest
Deal found 7/28![Southwest logo]()
$228
Best flights from San Jose to IdahoDiscover carefully curated flight deals from San Jose to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2026.
Discover carefully curated flight deals from San Jose to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2026.
This Southwest deal was found by Cheapflights users on 7/30. 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.
Fri 9/1110:40 am
SJC
- BOI
Nonstop1h 35m
Southwest
Sat 9/126:40 am
BOI
- SJC
1 stop4h 30m
Southwest
Deal found 7/30![Southwest logo]()
$207
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 10/226:33 am
SJC
- BOI
1 stop6h 14m
Alaska Airlines
Sat 10/241:32 pm
BOI
- SJC
1 stop4h 06m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 7/28. 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.
Mon 8/175:50 pm
SJC
- GEG
1 stop6h 09m
Delta
Sat 8/227:05 am
GEG
- SJC
1 stop6h 21m
Delta
Deal found 7/28![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:45 am
SJC
- JAC
1 stop5h 43m
United Airlines
Fri 8/284:25 pm
JAC
- SJC
1 stop5h 32m
United Airlines
Deal found 7/29![United Airlines logo]()
$325
This Southwest deal was found by Cheapflights users on 7/29. 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.
Wed 10/216:10 am
SJC
- BOI
2 stops6h 35m
Southwest
Sat 10/2411:10 am
BOI
- SJC
Nonstop1h 45m
Southwest
Deal found 7/29![Southwest logo]()
$212
This Delta deal was found by Cheapflights users on 7/28. 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 8/277:00 am
SJC
- BOI
1 stop6h 49m
Delta
Thu 9/33:29 pm
BOI
- SJC
1 stop5h 44m
Delta
Deal found 7/28![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 7/28. 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.
Mon 8/171:35 pm
SJC
- GEG
Nonstop2h 00m
Southwest
Sat 8/223:15 pm
GEG
- SJC
Nonstop2h 10m
Southwest
Deal found 7/28![Southwest logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Sun 10/116:17 am
SJC
- BOI
1 stop5h 18m
Alaska Airlines
Wed 10/147:20 am
BOI
- SJC
Nonstop1h 57m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$247
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:12 am
SJC
- BOI
1 stop26h 50m
Alaska Airlines
Sat 8/297:00 am
BOI
- SJC
Nonstop1h 52m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$250
This Southwest deal was found by Cheapflights users on 7/28. 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 9/107:55 am
SJC
- BOI
2 stops6h 10m
Southwest
Mon 9/146:30 am
BOI
- SJC
1 stop5h 00m
Southwest
Deal found 7/28![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 7/27. 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 8/272:45 pm
SJC
- GEG
1 stop6h 31m
Delta
Tue 9/19:25 am
GEG
- SJC
1 stop4h 40m
Delta
Deal found 7/27![Delta logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 8/196:16 am
SJC
- GEG
1 stop6h 15m
Alaska Airlines
Tue 8/252:02 pm
GEG
- SJC
2 stops8h 54m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$273
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/192:15 pm
SJC
- GEG
Nonstop2h 00m
Southwest
Mon 8/243:40 pm
GEG
- SJC
Nonstop2h 10m
Southwest
Deal found 7/26![Southwest logo]()
$259
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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 8/225:15 pm
SJC
- GEG
1 stop3h 58m
Alaska Airlines
Tue 8/252:02 pm
GEG
- SJC
2 stops8h 54m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$273
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/136:00 am
SJC
- WYS
1 stop3h 47m
Delta
Sat 9/261:09 pm
WYS
- SJC
1 stop6h 15m
Delta
Deal found 7/31![Delta logo]()
$304
This Southwest deal was found by Cheapflights users on 7/30. 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.
Fri 9/251:35 pm
SJC
- GEG
Nonstop2h 00m
Southwest
Sat 9/263:15 pm
GEG
- SJC
Nonstop2h 15m
Southwest
Deal found 7/30![Southwest logo]()
$259
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 9/28:45 am
SJC
- JAC
1 stop8h 04m
United Airlines
Fri 9/44:25 pm
JAC
- SJC
1 stop5h 32m
United Airlines
Deal found 7/26![United Airlines logo]()
$385
This Delta deal was found by Cheapflights users on 7/29. 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.
Sat 8/295:10 pm
SJC
- TWF
1 stop4h 08m
Delta
Sun 8/306:16 am
TWF
- SJC
1 stop3h 38m
Delta
Deal found 7/29![Delta logo]()
$306
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Sun 10/116:17 am
SJC
- BOI
1 stop5h 18m
Alaska Airlines
Mon 10/127:37 pm
BOI
- SJC
1 stop15h 17m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$280
This Southwest deal was found by Cheapflights users on 7/30. 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.
Fri 8/2111:40 am
SJC
- GEG
1 stop5h 15m
Southwest
Mon 8/243:40 pm
GEG
- SJC
Nonstop2h 10m
Southwest
Deal found 7/30![Southwest logo]()
$264
This Delta deal was found by Cheapflights users on 7/27. 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.
Tue 9/81:43 pm
SJC
- JAC
1 stop4h 38m
Delta
Thu 9/105:55 pm
JAC
- SJC
1 stop5h 01m
Delta
Deal found 7/27![Delta logo]()
$323
This Southwest deal was found by Cheapflights users on 7/30. 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.
Thu 8/271:25 pm
SJC
- GEG
1 stop8h 35m
Southwest
Thu 9/36:55 am
GEG
- SJC
2 stops7h 00m
Southwest
Deal found 7/30![Southwest logo]()
$274
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 11/102:10 pm
SJC
- IDA
1 stop22h 06m
Alaska Airlines
Sat 11/143:54 pm
IDA
- SJC
1 stop4h 46m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 8/188:45 am
SJC
- JAC
1 stop8h 04m
United Airlines
Sat 8/224:25 pm
JAC
- SJC
1 stop5h 32m
United Airlines
Deal found 7/30![United Airlines logo]()
$450
This Delta deal was found by Cheapflights users on 7/29. 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.
Wed 8/266:00 am
SJC
- WYS
1 stop5h 27m
Delta
Wed 9/21:09 pm
WYS
- SJC
1 stop3h 57m
Delta
Deal found 7/29![Delta logo]()
$324
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:46 pm
SJC
- IDA
1 stop17h 38m
Alaska Airlines
Mon 9/283:57 pm
IDA
- SJC
1 stop22h 47m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 7/29. 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.
Tue 10/61:35 pm
SJC
- GEG
1 stop7h 15m
Southwest
Sun 10/1110:50 am
GEG
- SJC
Nonstop2h 15m
Southwest
Deal found 7/29![Southwest logo]()
$277
This Delta deal was found by Cheapflights users on 7/28. 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.
Wed 9/26:00 am
SJC
- PIH
1 stop3h 31m
Delta
Fri 9/47:00 pm
PIH
- SJC
1 stop5h 44m
Delta
Deal found 7/28![Delta logo]()
$327
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/1512:51 pm
SJC
- JAC
1 stop6h 49m
United Airlines
Wed 8/194:25 pm
JAC
- SJC
1 stop5h 32m
United Airlines
Deal found 7/30![United Airlines logo]()
$479
This Southwest deal was found by Cheapflights users on 7/27. 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.
Sun 8/302:15 pm
SJC
- GEG
Nonstop2h 00m
Southwest
Mon 8/315:10 pm
GEG
- SJC
1 stop5h 10m
Southwest
Deal found 7/27![Southwest logo]()
$277
Last-minute flights from San Jose to IdahoDiscover last-minute flight deals from San Jose to Idaho. Data last updated July 31, 2026 and is based on user searches.
Discover last-minute flight deals from San Jose to Idaho. Data last updated July 31, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/28. 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.
Mon 8/171:35 pm
SJC
- GEG
Nonstop2h 00m
Southwest
Sat 8/223:15 pm
GEG
- SJC
Nonstop2h 10m
Southwest
Deal found 7/28![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 7/28. 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.
Wed 8/195:50 pm
SJC
- GEG
1 stop6h 09m
Delta
Tue 8/251:00 pm
GEG
- SJC
1 stop7h 13m
Delta
Deal found 7/28![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/192:30 pm
SJC
- GEG
2 stops7h 35m
Southwest
Mon 8/241:10 pm
GEG
- SJC
2 stops8h 00m
Southwest
Deal found 7/26![Southwest logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Thu 8/277:29 am
SJC
- BOI
1 stop5h 33m
Alaska Airlines
Sat 8/297:00 am
BOI
- SJC
Nonstop1h 52m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$207
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:29 am
SJC
- BOI
1 stop10h 51m
Alaska Airlines
Thu 9/37:00 am
BOI
- SJC
Nonstop1h 52m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$230
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 8/287:49 pm
SJC
- BOI
Nonstop1h 36m
Alaska Airlines
Sun 8/307:00 am
BOI
- SJC
Nonstop1h 52m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$197
This Delta deal was found by Cheapflights users on 7/29. 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.
Fri 8/284:30 pm
SJC
- BOI
1 stop5h 30m
Delta
Sun 8/301:06 pm
BOI
- SJC
1 stop4h 00m
Delta
Deal found 7/29![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 7/28. 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 8/289:05 am
SJC
- BOI
1 stop5h 10m
Southwest
Mon 8/316:00 am
BOI
- SJC
2 stops6h 55m
Southwest
Deal found 7/28![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 7/28. 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 8/282:59 pm
SJC
- BOI
1 stop7h 01m
Delta
Fri 9/46:45 pm
BOI
- SJC
1 stop5h 59m
Delta
Deal found 7/28![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 7/27. 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.
Fri 8/287:15 am
SJC
- BOI
2 stops6h 50m
Southwest
Sun 8/303:30 pm
BOI
- SJC
Nonstop1h 45m
Southwest
Deal found 7/27![Southwest logo]()
$232
This Southwest deal was found by Cheapflights users on 7/29. 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 8/286:20 am
SJC
- BOI
2 stops11h 50m
Southwest
Fri 9/42:45 pm
BOI
- SJC
1 stop5h 30m
Southwest
Deal found 7/29![Southwest logo]()
$238
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Sat 8/292:25 pm
SJC
- GEG
1 stop8h 24m
Alaska Airlines
Tue 9/17:03 am
GEG
- SJC
1 stop11h 01m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$223
One-way flights from San Jose to IdahoSearch for one-way flight options from San Jose to Idaho. Find affordable one-way fares based on user searches. Data last updated July 31, 2026.
Search for one-way flight options from San Jose to Idaho. Find affordable one-way fares based on user searches. Data last updated July 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/271:38 pm
SJC
- BOI
1 stop23h 17m
Frontier
Deal found 7/31![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 11/12:24 pm
SJC
- BOI
1 stop23h 33m
Frontier
Deal found 7/31![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 10/252:24 pm
SJC
- BOI
1 stop23h 33m
Frontier
Deal found 7/29![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Thu 10/292:24 pm
SJC
- BOI
1 stop23h 33m
Frontier
Deal found 7/27![Frontier logo]()
$92
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 8/287:49 pm
SJC
- BOI
Nonstop1h 36m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 10/11:38 pm
SJC
- BOI
1 stop23h 17m
Frontier
Deal found 7/31![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/241:38 pm
SJC
- BOI
1 stop23h 17m
Frontier
Deal found 7/28![Frontier logo]()
$106
This Southwest deal was found by Cheapflights users on 7/29. 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.
Mon 9/281:30 pm
SJC
- BOI
1 stop6h 15m
Southwest
Deal found 7/29![Southwest logo]()
$109
This Southwest deal was found by Cheapflights users on 7/30. 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.
Sat 8/2911:30 am
SJC
- GEG
Nonstop2h 10m
Southwest
Deal found 7/30![Southwest logo]()
$109
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 9/295:06 pm
SJC
- GEG
1 stop6h 47m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$112
This Southwest deal was found by Cheapflights users on 7/29. 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.
Sat 8/292:25 pm
SJC
- BOI
2 stops6h 35m
Southwest
Deal found 7/29![Southwest logo]()
$114
This Delta deal was found by Cheapflights users on 7/29. 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.
Wed 8/265:50 pm
SJC
- GEG
1 stop6h 09m
Delta
Deal found 7/29![Delta logo]()
$114
Find flight deals from San Jose to Idaho
Keep the following information in mind while searching for San Jose to Idaho flight deals. Data was last updated July 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $158 (Kiwi.com) |
One-way from | $75 (Kiwi.com) |
Popular in | October |
Cheapest in | January |
Average price | $327 |
Good round-trip deal | $267 or less |
Good one-way deal | $101 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Jose 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 2,558,603 searches. Data last updated July 31, 2026.
Use the filters below to find and compare flights from San Jose to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San JoseBoise
SJC - BOI
SJCBOI
San Jose
Fri 9/11
10:40 am-1:15 pm
Nonstop1h 35m
Boise Air Term. Gowen Fld
Sat 9/12
6:40 am-10:10 am
1 stop4h 30m
$207
San JoseBoise
SJC - BOI
SJCBOI
San Jose
Wed 10/21
6:10 am-1:45 pm
2 stops6h 35m
Boise Air Term. Gowen Fld
Sat 10/24
11:10 am-11:55 am
Nonstop1h 45m
$212
San JoseBoise
SJC - BOI
SJCBOI
San Jose
Thu 10/22
6:33 am-1:47 pm
1 stop6h 14m
Boise Air Term. Gowen Fld
Sat 10/24
1:32 pm-4:38 pm
1 stop4h 06m
$217
Quickest round-trip
San JoseSpokane
SJC - GEG
SJCGEG
San Jose
Mon 8/17
1:35 pm-3:35 pm
Nonstop2h 00m
Spokane
Sat 8/22
3:15 pm-5:25 pm
Nonstop2h 10m
$217
San JoseSpokane
SJC - GEG
SJCGEG
San Jose
Mon 8/17
5:50 pm-11:59 pm
1 stop6h 09m
Spokane
Sat 8/22
7:05 am-1:26 pm
1 stop6h 21m
$227
San JoseBoise
SJC - BOI
SJCBOI
San Jose
Thu 8/27
7:00 am-2:49 pm
1 stop6h 49m
Boise Air Term. Gowen Fld
Thu 9/3
3:29 pm-8:13 pm
1 stop5h 44m
$237
San JoseBoise
SJC - BOI
SJCBOI
San Jose
Thu 9/10
7:55 am-3:05 pm
2 stops6h 10m
Boise Air Term. Gowen Fld
Mon 9/14
6:30 am-10:30 am
1 stop5h 00m
$242
San JoseBoise
SJC - BOI
SJCBOI
San Jose
Sun 10/11
6:17 am-12:35 pm
1 stop5h 18m
Boise Air Term. Gowen Fld
Wed 10/14
7:20 am-8:17 am
Nonstop1h 57m
$247
San JoseBoise
SJC - BOI
SJCBOI
San Jose
Sun 8/23
10:12 am-2:02 pm
1 stop26h 50m
Boise Air Term. Gowen Fld
Sat 8/29
7:00 am-7:52 am
Nonstop1h 52m
$250
San JoseSpokane
SJC - GEG
SJCGEG
San Jose
Wed 8/19
2:15 pm-4:15 pm
Nonstop2h 00m
Spokane
Mon 8/24
3:40 pm-5:50 pm
Nonstop2h 10m
$259
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from San Jose to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from San Jose with our price prediction graph.
SJC-BOI
SJC-GEG
SJC-JAC
SJC-WYS
SJC-IDA
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 San Jose to Idaho
SJC-USID
SJC-BOI
SJC-GEG
SJC-JAC
SJC-WYS
What is the cheapest month to book a flight from San Jose, California to Idaho?
Currently, January is the cheapest month in which you can book a flight from San Jose, California to Idaho (average of $157). Flying from San Jose, California to Idaho in October is currently the most expensive (average of $432). 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 SJC to ID?
Find hourly flight availability from San Jose 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 July 31, 2026.
One of the essential ways to save on airfare from San Jose, California to Idaho is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 18% on airfare.
Weekly flight availability from San Jose, California to Idaho
Explore weekly flight availability from San Jose 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 July 31, 2026.
The most flights from SJC to USID are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from San Jose, California to Idaho?
Airfare is below average for this route at the moment.
San Jose, California to Idaho flights typically cost between $267 and $415 in September.The cheapest round-trip price found within the last 5 days was $158 on Frontier (Sep 13-Sep 20).
How far ahead should I book a flight from San Jose, California to Idaho?
The price you pay for your flight from San Jose, California to Idaho may vary depending on when you book. For the best chance of a lower fare, look to book 50 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from San Jose, California to Idaho?
Use this chart to determine the cheapest time to fly round-trip from San Jose to Idaho. Price data was last updated on July 25, 2026.
Travelers seeking maximum savings on their San Jose, California to Idaho flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday mornings 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 July 31, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta from San Jose to Idaho have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
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 San Jose to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for San Jose to Idaho
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Complete your trip
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San Jose and Idaho flights
Browse other San Jose and Idaho flight options. Last updated on July 31, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
San Jose to Idaho flights
Consider these flights traveling from San Jose to Idaho.
Top 3 airlines flying from San Jose to Idaho
Discover the top 3 airlines that operate flights from San Jose 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 2,558,603 searches. Data last updated July 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$147 | Average$337 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$150 | Average$307 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$329 | Average$404 | FlexibilityNo cancel fee | On-timeN/A |