$79+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — BOI
Apr 17 — Apr 241
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 March 18, 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 March 18, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:22 pm
SJC
- BOI
Nonstop1h 45m
Alaska Airlines
Mon 4/139:02 am
BOI
- SJC
Nonstop2h 00m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$157
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:00 am
SJC
- BOI
1 stop4h 52m
Alaska Airlines
Wed 4/2910:22 am
BOI
- SJC
Nonstop1h 55m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$167
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:50 pm
SJC
- BOI
2 stops6h 10m
Southwest
Thu 4/231:20 pm
BOI
- SJC
Nonstop1h 45m
Southwest
Deal found 3/15![Southwest logo]()
$172
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:30 pm
SJC
- BOI
2 stops6h 55m
Southwest
Thu 5/78:50 am
BOI
- SJC
1 stop4h 15m
Southwest
Deal found 3/13![Southwest logo]()
$182
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/93:40 pm
SJC
- BOI
Nonstop1h 40m
Southwest
Mon 4/131:20 pm
BOI
- SJC
Nonstop1h 45m
Southwest
Deal found 3/15![Southwest logo]()
$187
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:50 pm
SJC
- BOI
1 stop4h 21m
Delta
Tue 4/146:16 pm
BOI
- SJC
1 stop6h 26m
Delta
Deal found 3/13![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:50 pm
SJC
- BOI
Nonstop1h 40m
Southwest
Thu 4/232:00 pm
BOI
- SJC
2 stops7h 30m
Southwest
Deal found 3/15![Southwest logo]()
$202
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:35 pm
SJC
- BOI
1 stop5h 50m
Southwest
Mon 4/65:25 am
BOI
- SJC
1 stop5h 45m
Southwest
Deal found 3/13![Southwest logo]()
$207
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/134:00 pm
SJC
- BOI
1 stop6h 00m
Delta
Mon 4/206:16 pm
BOI
- SJC
1 stop6h 26m
Delta
Deal found 3/16![Delta logo]()
$208
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/65:55 pm
SJC
- BOI
1 stop7h 00m
Southwest
Fri 4/102:00 pm
BOI
- SJC
2 stops7h 30m
Southwest
Deal found 3/16![Southwest logo]()
$212
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/239:10 am
SJC
- BOI
1 stop5h 30m
Southwest
Mon 4/277:55 pm
BOI
- SJC
1 stop5h 00m
Southwest
Deal found 3/17![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 6/47:00 pm
SJC
- GEG
1 stop4h 35m
Delta
Sun 6/76:20 am
GEG
- SJC
1 stop4h 36m
Delta
Deal found 3/17![Delta logo]()
$233
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 March 18, 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 March 18, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:22 pm
SJC
- BOI
Nonstop1h 45m
Alaska Airlines
Tue 4/142:22 pm
BOI
- SJC
1 stop6h 38m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$167
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/203:40 pm
SJC
- BOI
Nonstop1h 40m
Southwest
Thu 4/231:20 pm
BOI
- SJC
Nonstop1h 45m
Southwest
Deal found 3/15![Southwest logo]()
$187
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:20 am
SJC
- GEG
1 stop7h 29m
Delta
Wed 5/66:15 am
GEG
- SJC
2 stops10h 44m
Delta
Deal found 3/12![Delta logo]()
$250
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:00 am
SJC
- BOI
1 stop4h 52m
Alaska Airlines
Wed 4/2910:22 am
BOI
- SJC
Nonstop1h 55m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$167
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/72:20 pm
SJC
- BOI
2 stops8h 10m
Southwest
Fri 4/102:00 pm
BOI
- SJC
2 stops7h 30m
Southwest
Deal found 3/15![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/162:51 pm
SJC
- GEG
2 stops9h 08m
Delta
Mon 5/185:00 am
GEG
- SJC
2 stops12h 15m
Delta
Deal found 3/12![Delta logo]()
$255
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:51 pm
SJC
- GEG
1 stop7h 29m
Alaska Airlines
Wed 4/295:00 am
GEG
- SJC
1 stop4h 30m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$233
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/162:55 pm
SJC
- GEG
Nonstop2h 05m
Southwest
Sat 4/1810:45 am
GEG
- SJC
1 stop5h 55m
Southwest
Deal found 3/14![Southwest logo]()
$245
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/37:22 pm
SJC
- GEG
1 stop12h 19m
Alaska Airlines
Fri 4/107:53 pm
GEG
- SJC
1 stop14h 09m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/271:59 pm
SJC
- GEG
2 stops10h 21m
Delta
Wed 4/295:00 am
GEG
- SJC
2 stops10h 08m
Delta
Deal found 3/15![Delta logo]()
$295
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:10 pm
SJC
- GEG
1 stop5h 15m
Southwest
Fri 4/245:35 pm
GEG
- SJC
1 stop6h 20m
Southwest
Deal found 3/13![Southwest logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:18 pm
SJC
- GEG
1 stop26h 02m
Alaska Airlines
Wed 4/295:00 am
GEG
- SJC
2 stops7h 03m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$268
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/294:59 pm
SJC
- JAC
1 stop3h 30m
Delta
Tue 6/21:15 pm
JAC
- SJC
2 stops10h 19m
Delta
Deal found 3/17![Delta logo]()
$300
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 5/22:51 pm
SJC
- GEG
1 stop7h 29m
Alaska Airlines
Sun 5/37:27 am
GEG
- SJC
1 stop26h 17m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$268
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:00 am
SJC
- JAC
1 stop5h 04m
Delta
Tue 4/211:00 pm
JAC
- SJC
2 stops7h 07m
Delta
Deal found 3/14![Delta logo]()
$300
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/294:59 pm
SJC
- JAC
1 stop3h 30m
Delta
Thu 6/45:59 pm
JAC
- SJC
1 stop6h 42m
Delta
Deal found 3/17![Delta logo]()
$313
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/204:50 pm
SJC
- IDA
1 stop4h 50m
Delta
Sun 5/176:00 am
IDA
- SJC
1 stop3h 58m
Delta
Deal found 3/14![Delta logo]()
$325
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:50 am
SJC
- JAC
1 stop3h 58m
Delta
Sun 5/245:59 pm
JAC
- SJC
1 stop4h 42m
Delta
Deal found 3/14![Delta logo]()
$338
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:00 am
SJC
- SUN
1 stop26h 18m
Alaska Airlines
Sat 4/1812:00 pm
SUN
- SJC
1 stop22h 28m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$438
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:00 am
SJC
- SUN
1 stop4h 54m
Delta
Wed 4/17:15 am
SUN
- SJC
2 stops6h 37m
Delta
Deal found 3/13![Delta logo]()
$366
This CheapOair deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:00 am
SJC
- IDA
1 stop4h 17m
Alaska Airlines
Thu 6/44:03 pm
IDA
- SJC
2 stops8h 28m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$457
This Delta deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/15:45 am
SJC
- IDA
1 stop3h 54m
Delta
Sat 8/86:10 am
IDA
- SJC
1 stop3h 47m
Delta
Deal found 3/15![Delta logo]()
$384
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/27:00 am
SJC
- JAC
2 stops8h 47m
Delta
Mon 4/65:50 pm
JAC
- SJC
1 stop7h 08m
Delta
Deal found 3/17![Delta logo]()
$394
This Alaska Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/232:34 pm
SJC
- IDA
1 stop7h 19m
Alaska Airlines
Tue 5/264:03 pm
IDA
- SJC
2 stops21h 19m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$533
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/275:50 am
SJC
- WYS
1 stop5h 35m
Delta
Sat 5/3011:15 am
WYS
- SJC
1 stop5h 54m
Delta
Deal found 3/17![Delta logo]()
$409
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 6/185:45 am
SJC
- PIH
1 stop3h 46m
Delta
Mon 6/227:00 pm
PIH
- SJC
1 stop5h 49m
Delta
Deal found 3/17![Delta logo]()
$427
This Alaska Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:15 am
SJC
- IDA
1 stop15h 37m
Alaska Airlines
Sun 5/174:03 pm
IDA
- SJC
2 stops8h 28m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$598
This Delta deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/15:45 am
SJC
- WYS
1 stop3h 56m
Delta
Sat 8/811:29 am
WYS
- SJC
2 stops11h 40m
Delta
Deal found 3/15![Delta logo]()
$429
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 7/298:00 am
SJC
- JAC
1 stop4h 31m
Alaska Airlines
Mon 8/312:00 pm
JAC
- SJC
2 stops24h 24m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$605
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 5/275:50 am
SJC
- LWS
1 stop5h 46m
Delta
Sat 5/308:25 am
LWS
- SJC
2 stops7h 44m
Delta
Deal found 3/16![Delta logo]()
$432
Last-minute flights from San Jose to IdahoDiscover last-minute flight deals from San Jose to Idaho. Data last updated March 18, 2026 and is based on user searches.
Discover last-minute flight deals from San Jose to Idaho. Data last updated March 18, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:35 pm
SJC
- BOI
1 stop5h 50m
Southwest
Mon 4/65:25 am
BOI
- SJC
1 stop5h 45m
Southwest
Deal found 3/13![Southwest logo]()
$207
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/65:55 pm
SJC
- BOI
1 stop7h 00m
Southwest
Fri 4/102:00 pm
BOI
- SJC
2 stops7h 30m
Southwest
Deal found 3/16![Southwest logo]()
$212
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:50 pm
SJC
- BOI
1 stop4h 21m
Delta
Tue 4/146:16 pm
BOI
- SJC
1 stop6h 26m
Delta
Deal found 3/13![Delta logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:22 pm
SJC
- BOI
Nonstop1h 45m
Alaska Airlines
Mon 4/139:02 am
BOI
- SJC
Nonstop2h 00m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/93:40 pm
SJC
- BOI
Nonstop1h 40m
Southwest
Mon 4/131:20 pm
BOI
- SJC
Nonstop1h 45m
Southwest
Deal found 3/15![Southwest logo]()
$187
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/134:00 pm
SJC
- BOI
1 stop6h 00m
Delta
Mon 4/206:16 pm
BOI
- SJC
1 stop6h 26m
Delta
Deal found 3/16![Delta logo]()
$208
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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.
Mon 4/138:39 pm
SJC
- BOI
1 stop26h 08m
Alaska Airlines
Mon 4/209:02 am
BOI
- SJC
Nonstop2h 00m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$220
This American Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:10 am
SJC
- GEG
1 stop8h 09m
American Airlines
Tue 4/216:34 am
GEG
- SJC
1 stop5h 32m
American Airlines
Deal found 3/13![American Airlines logo]()
$233
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:50 pm
SJC
- BOI
Nonstop1h 40m
Southwest
Thu 4/232:00 pm
BOI
- SJC
2 stops7h 30m
Southwest
Deal found 3/15![Southwest logo]()
$202
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:50 pm
SJC
- BOI
2 stops6h 10m
Southwest
Thu 4/231:20 pm
BOI
- SJC
Nonstop1h 45m
Southwest
Deal found 3/15![Southwest logo]()
$172
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/239:10 am
SJC
- BOI
1 stop5h 30m
Southwest
Mon 4/277:55 pm
BOI
- SJC
1 stop5h 00m
Southwest
Deal found 3/17![Southwest logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:00 am
SJC
- BOI
1 stop4h 52m
Alaska Airlines
Wed 4/2910:22 am
BOI
- SJC
Nonstop1h 55m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$167
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 March 18, 2026.
Search for one-way flight options from San Jose to Idaho. Find affordable one-way fares based on user searches. Data last updated March 18, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:22 pm
SJC
- BOI
Nonstop1h 45m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$79
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/145:35 pm
SJC
- BOI
1 stop5h 12m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$89
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:25 am
SJC
- BOI
2 stops9h 45m
Southwest
Deal found 3/15![Southwest logo]()
$94
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:50 pm
SJC
- BOI
1 stop4h 06m
Delta
Deal found 3/13![Delta logo]()
$99
This Alaska Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:41 pm
SJC
- BOI
Nonstop1h 43m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$109
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:05 am
SJC
- GEG
1 stop7h 40m
Southwest
Deal found 3/13![Southwest logo]()
$117
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:15 am
SJC
- BOI
1 stop5h 20m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$119
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 5/122:51 pm
SJC
- GEG
1 stop7h 29m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$119
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/246:32 pm
SJC
- BOI
1 stop4h 45m
Delta
Deal found 3/16![Delta logo]()
$120
This CheapOair deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:22 pm
SJC
- GEG
1 stop12h 19m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$122
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:20 pm
SJC
- GEG
1 stop6h 50m
Southwest
Deal found 3/12![Southwest logo]()
$123
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/161:25 pm
SJC
- BOI
2 stops6h 00m
Southwest
Deal found 3/17![Southwest logo]()
$124
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 March 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $157 (Alaska Airlines) |
One-way from | $79 (Alaska Airlines) |
Popular in | June |
Cheapest in | January |
Average price | $343 |
Good round-trip deal | $242 or less |
Good one-way deal | $78 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 March 18, 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 4/10
7:22 pm-10:07 pm
Nonstop1h 45m
Boise Air Term. Gowen Fld
Tue 4/14
2:22 pm-8:00 pm
1 stop6h 38m
$167
San JoseBoise
SJC - BOI
SJCBOI
San Jose
Tue 4/28
8:00 am-1:52 pm
1 stop4h 52m
Boise Air Term. Gowen Fld
Wed 4/29
10:22 am-11:17 am
Nonstop1h 55m
$167
Quickest round-trip
San JoseBoise
SJC - BOI
SJCBOI
San Jose
Mon 4/20
3:40 pm-6:20 pm
Nonstop1h 40m
Boise Air Term. Gowen Fld
Thu 4/23
1:20 pm-2:05 pm
Nonstop1h 45m
$187
San JoseBoise
SJC - BOI
SJCBOI
San Jose
Tue 4/7
2:20 pm-11:30 pm
2 stops8h 10m
Boise Air Term. Gowen Fld
Fri 4/10
2:00 pm-8:30 pm
2 stops7h 30m
$217
San JoseSpokane
SJC - GEG
SJCGEG
San Jose
Tue 4/28
2:51 pm-10:20 pm
1 stop7h 29m
Spokane
Wed 4/29
5:00 am-9:30 am
1 stop4h 30m
$233
San JoseSpokane
SJC - GEG
SJCGEG
San Jose
Thu 4/16
2:55 pm-5:00 pm
Nonstop2h 05m
Spokane
Sat 4/18
10:45 am-4:40 pm
1 stop5h 55m
$245
San JoseSpokane
SJC - GEG
SJCGEG
San Jose
Wed 4/29
7:20 am-2:49 pm
1 stop7h 29m
Spokane
Wed 5/6
6:15 am-4:59 pm
2 stops10h 44m
$250
San JoseSpokane
SJC - GEG
SJCGEG
San Jose
Fri 4/3
7:22 pm-7:41 am
1 stop12h 19m
Spokane
Fri 4/10
7:53 pm-10:02 am
1 stop14h 09m
$253
San JoseSpokane
SJC - GEG
SJCGEG
San Jose
Sat 5/16
2:51 pm-11:59 pm
2 stops9h 08m
Spokane
Mon 5/18
5:00 am-5:15 pm
2 stops12h 15m
$255
San JoseSpokane
SJC - GEG
SJCGEG
San Jose
Mon 4/27
8:18 pm-10:20 pm
1 stop26h 02m
Spokane
Wed 4/29
5:00 am-12:03 pm
2 stops7h 03m
$268
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-IDA
SJC-SUN
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-IDA
What is the cheapest month to book a flight from San Jose, California to Idaho?
Currently, August is the cheapest month in which you can book a flight from San Jose, California to Idaho (average of $78). Flying from San Jose, California to Idaho in December is currently the most expensive (average of $155). 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 March 18, 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 in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 24% on airfare.
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 March 14, 2026.
Travelers seeking maximum savings on their San Jose, California to Idaho flight should consider departing on Wednesday evenings 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.
How much does it cost to fly round-trip from San Jose, California to Idaho?
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 March 18, 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
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
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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San Jose and Idaho flights
Browse other San Jose and Idaho flight options. Last updated on March 18, 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 4 airlines flying from San Jose to Idaho
Discover the top 4 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 March 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$78 | Average$237 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$126 | Average$344 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$147 | Average$307 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$147 | Average$288 | FlexibilityNo cancel fee | On-time63% |