$69+ Cheap flights from San Diego (SAN) 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOI
Apr 15 — Apr 221
Round-trip
1 adult, Economy
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Cheapest flights from San Diego to IdahoExplore the most affordable flight options available from San Diego to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.
Explore the most affordable flight options available from San Diego to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:24 pm
SAN
- GEG
Nonstop2h 56m
Alaska Airlines
Tue 5/510:30 am
GEG
- SAN
Nonstop2h 48m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$137
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.
Sat 5/21:50 pm
SAN
- GEG
2 stops8h 25m
Southwest
Sat 5/911:05 am
GEG
- SAN
Nonstop2h 40m
Southwest
Deal found 3/12![Southwest logo]()
$152
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.
Wed 4/221:20 pm
SAN
- BOI
Nonstop2h 20m
Southwest
Tue 4/281:05 pm
BOI
- SAN
Nonstop2h 15m
Southwest
Deal found 3/12![Southwest logo]()
$157
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:37 pm
SAN
- GEG
Nonstop2h 57m
Alaska Airlines
Sun 4/197:19 am
GEG
- SAN
Nonstop2h 51m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$157
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.
Sat 4/259:40 am
SAN
- GEG
Nonstop2h 45m
Southwest
Mon 4/275:35 pm
GEG
- SAN
1 stop4h 25m
Southwest
Deal found 3/12![Southwest logo]()
$163
This Southwest deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:35 pm
SAN
- BOI
Nonstop2h 15m
Southwest
Sat 4/253:25 pm
BOI
- SAN
1 stop3h 35m
Southwest
Deal found 3/11![Southwest logo]()
$164
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.
Wed 4/226:03 pm
SAN
- BOI
Nonstop2h 23m
Alaska Airlines
Tue 4/286:08 pm
BOI
- SAN
1 stop5h 28m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$167
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:24 pm
SAN
- GEG
Nonstop2h 56m
Alaska Airlines
Mon 4/277:27 am
GEG
- SAN
Nonstop2h 48m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$167
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 4/85:45 pm
SAN
- BOI
1 stop4h 35m
Southwest
Sat 4/113:25 pm
BOI
- SAN
1 stop3h 35m
Southwest
Deal found 3/13![Southwest logo]()
$172
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/75:20 pm
SAN
- BOI
1 stop4h 32m
Hawaiian Airlines
Thu 4/98:04 pm
BOI
- SAN
Nonstop2h 19m
Hawaiian Airlines
Deal found 3/15![Hawaiian Airlines logo]()
$173
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:37 pm
SAN
- GEG
Nonstop2h 57m
Multiple Airlines
Sun 4/1911:44 am
GEG
- SAN
1 stop20h 50m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$174
This Expedia deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:24 pm
SAN
- GEG
Nonstop2h 56m
Alaska Airlines
Sun 4/267:27 am
GEG
- SAN
Nonstop2h 48m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$177
Best flights from San Diego to IdahoDiscover carefully curated flight deals from San Diego to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 16, 2026.
Discover carefully curated flight deals from San Diego to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 16, 2026.
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:24 pm
SAN
- GEG
Nonstop2h 56m
Alaska Airlines
Tue 5/510:30 am
GEG
- SAN
Nonstop2h 48m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$137
This Delta deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/25:55 pm
SAN
- GEG
1 stop4h 38m
Delta
Tue 5/56:15 am
GEG
- SAN
1 stop6h 23m
Delta
Deal found 3/11![Delta logo]()
$177
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 4/2111:30 am
SAN
- BOI
1 stop3h 55m
Southwest
Fri 4/242:15 pm
BOI
- SAN
Nonstop2h 10m
Southwest
Deal found 3/15![Southwest logo]()
$183
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:17 pm
SAN
- IDA
1 stop15h 39m
Multiple Airlines
Mon 6/14:43 pm
IDA
- SAN
2 stops32h 04m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$256
This United Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:32 am
SAN
- SUN
1 stop6h 03m
United Airlines
Fri 4/172:24 pm
SUN
- SAN
1 stop7h 58m
United Airlines
Deal found 3/11![United Airlines logo]()
$291
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:18 pm
SAN
- BOI
Nonstop2h 29m
Alaska Airlines
Sat 4/188:04 pm
BOI
- SAN
Nonstop2h 19m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$157
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.
Fri 4/2410:40 am
SAN
- GEG
1 stop6h 20m
Southwest
Mon 4/272:50 pm
GEG
- SAN
2 stops7h 40m
Southwest
Deal found 3/13![Southwest logo]()
$202
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/75:20 pm
SAN
- BOI
1 stop4h 32m
Alaska Airlines
Fri 4/106:32 am
BOI
- SAN
Nonstop2h 24m
Alaska Airlines
Deal found 3/12![Alaska Airlines 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.
Thu 4/3011:40 am
SAN
- BOI
1 stop8h 44m
Delta
Fri 5/14:55 pm
BOI
- SAN
1 stop6h 41m
Delta
Deal found 3/12![Delta logo]()
$217
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.
Sat 4/257:37 pm
SAN
- BOI
Nonstop2h 25m
Alaska Airlines
Wed 4/297:43 am
BOI
- SAN
Nonstop2h 22m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$187
This Southwest deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:35 pm
SAN
- BOI
Nonstop2h 15m
Southwest
Mon 4/135:40 pm
BOI
- SAN
1 stop5h 50m
Southwest
Deal found 3/11![Southwest logo]()
$207
This Alaska Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:37 pm
SAN
- BOI
Nonstop2h 25m
Alaska Airlines
Tue 5/127:43 am
BOI
- SAN
Nonstop2h 22m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$187
This Southwest deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:35 pm
SAN
- BOI
Nonstop2h 15m
Southwest
Fri 4/177:55 pm
BOI
- SAN
1 stop4h 10m
Southwest
Deal found 3/11![Southwest logo]()
$207
This United Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:45 am
SAN
- JAC
1 stop5h 27m
United Airlines
Tue 8/257:00 am
JAC
- SAN
1 stop6h 41m
United Airlines
Deal found 3/11![United Airlines logo]()
$301
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.
Sat 4/258:03 am
SAN
- BOI
1 stop7h 12m
Alaska Airlines
Fri 5/16:08 pm
BOI
- SAN
1 stop6h 51m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$207
This Southwest deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/88:25 am
SAN
- GEG
Nonstop2h 45m
Southwest
Sun 6/1412:35 pm
GEG
- SAN
Nonstop2h 40m
Southwest
Deal found 3/11![Southwest logo]()
$240
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.
Tue 4/147:16 am
SAN
- BOI
1 stop7h 15m
Alaska Airlines
Tue 4/216:00 am
BOI
- SAN
1 stop6h 48m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$207
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 4/176:15 am
SAN
- SUN
1 stop4h 46m
Delta
Mon 4/2012:42 pm
SUN
- SAN
2 stops10h 47m
Delta
Deal found 3/14![Delta logo]()
$306
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/306:20 am
SAN
- SUN
1 stop7h 02m
United Airlines
Fri 4/37:00 am
SUN
- SAN
1 stop6h 52m
United Airlines
Deal found 3/15![United Airlines logo]()
$361
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 5/226:15 am
SAN
- SUN
1 stop4h 42m
Delta
Mon 5/2512:39 pm
SUN
- SAN
1 stop4h 17m
Delta
Deal found 3/14![Delta logo]()
$331
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:15 am
SAN
- IDA
1 stop7h 14m
Alaska Airlines
Sat 5/26:00 am
IDA
- SAN
1 stop13h 41m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$245
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/31:20 pm
SAN
- SUN
1 stop7h 13m
United Airlines
Sun 4/54:10 pm
SUN
- SAN
1 stop5h 02m
United Airlines
Deal found 3/13![United Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:15 am
SAN
- JAC
2 stops9h 13m
Delta
Tue 8/257:09 am
JAC
- SAN
1 stop6h 46m
Delta
Deal found 3/11![Delta logo]()
$357
This Alaska Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/138:22 pm
SAN
- GEG
Nonstop2h 48m
Alaska Airlines
Sun 6/218:12 am
GEG
- SAN
Nonstop2h 51m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$253
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:36 am
SAN
- JAC
1 stop6h 20m
United Airlines
Fri 4/34:15 pm
JAC
- SAN
1 stop7h 15m
United Airlines
Deal found 3/12![United Airlines logo]()
$381
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.
Mon 3/306:20 am
SAN
- JAC
2 stops9h 27m
Delta
Wed 4/15:50 pm
JAC
- SAN
1 stop6h 58m
Delta
Deal found 3/12![Delta logo]()
$365
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:35 am
SAN
- JAC
1 stop7h 50m
United Airlines
Fri 5/292:44 pm
JAC
- SAN
2 stops10h 10m
United Airlines
Deal found 3/13![United Airlines logo]()
$396
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.
Sun 5/106:15 am
SAN
- JAC
1 stop5h 05m
Delta
Sat 5/165:59 pm
JAC
- SAN
1 stop4h 56m
Delta
Deal found 3/15![Delta logo]()
$392
This United Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:20 am
SAN
- JAC
1 stop6h 28m
United Airlines
Mon 6/154:23 pm
JAC
- SAN
1 stop5h 23m
United Airlines
Deal found 3/11![United Airlines logo]()
$411
This Delta deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:15 am
SAN
- JAC
2 stops9h 13m
Delta
Tue 6/161:10 pm
JAC
- SAN
1 stop3h 58m
Delta
Deal found 3/11![Delta logo]()
$410
Last-minute flights from San Diego to IdahoDiscover last-minute flight deals from San Diego to Idaho. Data last updated March 16, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Idaho. Data last updated March 16, 2026 and is based on user searches.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/75:20 pm
SAN
- BOI
1 stop4h 32m
Hawaiian Airlines
Thu 4/98:04 pm
BOI
- SAN
Nonstop2h 19m
Hawaiian Airlines
Deal found 3/15![Hawaiian Airlines logo]()
$173
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 4/85:45 pm
SAN
- BOI
1 stop4h 35m
Southwest
Sat 4/113:25 pm
BOI
- SAN
1 stop3h 35m
Southwest
Deal found 3/13![Southwest logo]()
$172
This Southwest deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/811:30 am
SAN
- BOI
2 stops6h 30m
Southwest
Wed 4/152:00 pm
BOI
- SAN
1 stop6h 55m
Southwest
Deal found 3/11![Southwest logo]()
$182
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:37 pm
SAN
- GEG
Nonstop2h 57m
Alaska Airlines
Sun 4/197:19 am
GEG
- SAN
Nonstop2h 51m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$157
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:37 pm
SAN
- GEG
Nonstop2h 57m
Multiple Airlines
Sun 4/1911:44 am
GEG
- SAN
1 stop20h 50m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$174
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.
Wed 4/221:20 pm
SAN
- BOI
Nonstop2h 20m
Southwest
Tue 4/281:05 pm
BOI
- SAN
Nonstop2h 15m
Southwest
Deal found 3/12![Southwest 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.
Wed 4/226:03 pm
SAN
- BOI
Nonstop2h 23m
Alaska Airlines
Tue 4/286:08 pm
BOI
- SAN
1 stop5h 28m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$167
This Southwest deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:35 pm
SAN
- BOI
Nonstop2h 15m
Southwest
Sat 4/253:25 pm
BOI
- SAN
1 stop3h 35m
Southwest
Deal found 3/11![Southwest logo]()
$164
This Expedia deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:24 pm
SAN
- GEG
Nonstop2h 56m
Alaska Airlines
Sun 4/267:27 am
GEG
- SAN
Nonstop2h 48m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$177
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.
Sat 4/259:40 am
SAN
- GEG
Nonstop2h 45m
Southwest
Mon 4/275:35 pm
GEG
- SAN
1 stop4h 25m
Southwest
Deal found 3/12![Southwest logo]()
$163
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:24 pm
SAN
- GEG
Nonstop2h 56m
Alaska Airlines
Mon 4/277:27 am
GEG
- SAN
Nonstop2h 48m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$167
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.
Thu 4/3010:40 am
SAN
- GEG
1 stop6h 20m
Southwest
Tue 5/55:10 am
GEG
- SAN
2 stops7h 00m
Southwest
Deal found 3/16![Southwest logo]()
$182
One-way flights from San Diego to IdahoSearch for one-way flight options from San Diego to Idaho. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
Search for one-way flight options from San Diego to Idaho. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$69
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/48:18 pm
SAN
- BOI
Nonstop2h 29m
Hawaiian Airlines
Deal found 3/14![Hawaiian Airlines logo]()
$74
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/812:00 pm
SAN
- BOI
1 stop22h 08m
Frontier
Deal found 3/12![Frontier logo]()
$78
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 4/148:18 pm
SAN
- BOI
Nonstop2h 29m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$79
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:24 pm
SAN
- GEG
Nonstop2h 56m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$79
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 4/1411:30 am
SAN
- BOI
1 stop3h 55m
Southwest
Deal found 3/15![Southwest logo]()
$84
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 5/123:45 pm
SAN
- GEG
2 stops7h 40m
Southwest
Deal found 3/12![Southwest logo]()
$84
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/44:55 pm
SAN
- BOI
1 stop5h 43m
American Airlines
Deal found 3/14![American Airlines logo]()
$88
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$89
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 4/138:18 pm
SAN
- BOI
Nonstop2h 29m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$99
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:15 am
SAN
- GEG
1 stop8h 01m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$99
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$100
Find flight deals from San Diego to Idaho
Keep the following information in mind while searching for San Diego to Idaho flight deals. Data was last updated March 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $137 (Alaska Airlines) |
One-way from | $69 (Alaska Airlines) |
Popular in | November |
Cheapest in | February |
Average price | $307 |
Good round-trip deal | $247 or less |
Good one-way deal | $130 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego 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 16, 2026.
Use the filters below to find and compare flights from San Diego to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Sat 5/2
7:24 pm-10:20 pm
Nonstop2h 56m
Spokane
Tue 5/5
10:30 am-1:18 pm
Nonstop2h 48m
$137
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Wed 4/15
8:18 pm-11:47 pm
Nonstop2h 29m
Boise Air Term. Gowen Fld
Sat 4/18
8:04 pm-9:23 pm
Nonstop2h 19m
$157
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Sat 5/2
5:55 pm-10:33 pm
1 stop4h 38m
Spokane
Tue 5/5
6:15 am-12:38 pm
1 stop6h 23m
$177
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Tue 4/21
11:30 am-4:25 pm
1 stop3h 55m
Boise Air Term. Gowen Fld
Fri 4/24
2:15 pm-3:25 pm
Nonstop2h 10m
$183
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Tue 4/7
5:20 pm-10:52 pm
1 stop4h 32m
Boise Air Term. Gowen Fld
Fri 4/10
6:32 am-7:56 am
Nonstop2h 24m
$187
Quickest round-trip
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Sat 4/25
7:37 pm-11:02 pm
Nonstop2h 25m
Boise Air Term. Gowen Fld
Wed 4/29
7:43 am-9:05 am
Nonstop2h 22m
$187
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Fri 5/8
7:37 pm-11:02 pm
Nonstop2h 25m
Boise Air Term. Gowen Fld
Tue 5/12
7:43 am-9:05 am
Nonstop2h 22m
$187
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Fri 4/24
10:40 am-5:00 pm
1 stop6h 20m
Spokane
Mon 4/27
2:50 pm-10:30 pm
2 stops7h 40m
$202
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Thu 4/9
6:35 pm-9:50 pm
Nonstop2h 15m
Boise Air Term. Gowen Fld
Mon 4/13
5:40 pm-10:30 pm
1 stop5h 50m
$207
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Fri 4/10
6:35 pm-9:50 pm
Nonstop2h 15m
Boise Air Term. Gowen Fld
Fri 4/17
7:55 pm-11:05 pm
1 stop4h 10m
$207
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from San Diego to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from San Diego with our price prediction graph.
SAN-GEG
SAN-BOI
SAN-SUN
SAN-IDA
SAN-JAC
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 Diego to Idaho
SAN-USID
SAN-GEG
SAN-BOI
SAN-SUN
SAN-IDA
What is the cheapest month to book a flight from San Diego to Idaho?
Currently, November is the cheapest month in which you can book a flight from San Diego to Idaho (average of $60). Flying from San Diego to Idaho in December is currently the most expensive (average of $142). 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 SAN to ID?
Find hourly flight availability from San Diego 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 16, 2026.
It’s optimal to fly from San Diego to Idaho at noon. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight in the morning.
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 16, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from San Diego to Idaho by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
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 Diego 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 Diego to Idaho
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Diego to Idaho by cabin class
Find flights from San Diego to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Diego and Idaho flights
Browse other San Diego and Idaho flight options. Last updated on March 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
San Diego to Idaho flights
Consider these flights traveling from San Diego to Idaho.
Top 5 airlines flying from San Diego to Idaho
Discover the top 5 airlines that operate flights from San Diego 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 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$144 | Average$386 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$155 | Average$267 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$157 | Average$274 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$157 | Average$329 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$185 | Average$474 | FlexibilityNo cancel fee | On-time69% |