$72+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOI
Jul 15 — Jul 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 June 15, 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 June 15, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:48 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Wed 10/217:16 am
GEG
- SAN
Nonstop2h 55m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$143
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:58 pm
SAN
- BOI
Nonstop2h 22m
Alaska Airlines
Wed 9/166:49 pm
BOI
- SAN
Nonstop2h 30m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$155
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:48 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Sat 10/247:16 am
GEG
- SAN
Nonstop2h 55m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$157
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1912:54 pm
SAN
- GEG
1 stop6h 45m
American Airlines
Tue 9/221:45 pm
GEG
- SAN
1 stop4h 31m
American Airlines
Deal found 6/12![American Airlines logo]()
$162
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:45 am
SAN
- BOI
Nonstop2h 15m
Southwest
Tue 9/83:40 pm
BOI
- SAN
1 stop5h 00m
Southwest
Deal found 6/11![Southwest logo]()
$165
This Southwest deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:15 am
SAN
- BOI
Nonstop2h 10m
Southwest
Tue 7/145:30 am
BOI
- SAN
1 stop6h 20m
Southwest
Deal found 6/14![Southwest logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:57 pm
SAN
- GEG
Nonstop2h 54m
Alaska Airlines
Sat 10/247:16 am
GEG
- SAN
Nonstop2h 55m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$171
This Southwest deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:40 am
SAN
- BOI
2 stops6h 45m
Southwest
Tue 7/283:15 pm
BOI
- SAN
Nonstop2h 10m
Southwest
Deal found 6/12![Southwest logo]()
$172
This Priceline deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:45 am
SAN
- BOI
Nonstop2h 17m
Alaska Airlines
Sun 9/66:49 pm
BOI
- SAN
Nonstop2h 30m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$176
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:57 pm
SAN
- GEG
Nonstop2h 54m
Alaska Airlines
Wed 10/217:16 am
GEG
- SAN
Nonstop2h 55m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$180
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:35 am
SAN
- BOI
1 stop4h 56m
United Airlines
Fri 9/117:05 pm
BOI
- SAN
1 stop4h 42m
United Airlines
Deal found 6/11![United Airlines logo]()
$181
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:26 am
SAN
- BOI
1 stop6h 18m
United Airlines
Tue 7/147:05 pm
BOI
- SAN
1 stop6h 26m
United Airlines
Deal found 6/13![United Airlines logo]()
$183
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 June 15, 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 June 15, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:45 am
SAN
- BOI
Nonstop2h 17m
Alaska Airlines
Tue 9/16:49 pm
BOI
- SAN
Nonstop2h 30m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$177
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1411:01 am
SAN
- BOI
1 stop4h 43m
United Airlines
Fri 7/177:05 pm
BOI
- SAN
1 stop4h 44m
United Airlines
Deal found 6/10![United Airlines logo]()
$189
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:35 am
SAN
- BOI
1 stop5h 40m
Southwest
Sat 9/196:40 am
BOI
- SAN
Nonstop2h 15m
Southwest
Deal found 6/11![Southwest logo]()
$211
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:05 am
SAN
- GEG
1 stop7h 42m
Delta
Sun 9/135:20 am
GEG
- SAN
1 stop4h 51m
Delta
Deal found 6/11![Delta logo]()
$214
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:20 am
SAN
- BOI
1 stop3h 55m
Southwest
Thu 8/203:45 pm
BOI
- SAN
Nonstop2h 15m
Southwest
Deal found 6/10![Southwest logo]()
$211
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:46 am
SAN
- GEG
1 stop6h 23m
Delta
Wed 9/95:10 am
GEG
- SAN
1 stop4h 59m
Delta
Deal found 6/15![Delta logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:59 pm
SAN
- GEG
Nonstop2h 50m
Alaska Airlines
Wed 9/92:02 pm
GEG
- SAN
1 stop4h 58m
Alaska Airlines
Deal found 6/12![Alaska Airlines logo]()
$234
This Southwest deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/42:15 pm
SAN
- GEG
Nonstop2h 40m
Southwest
Sun 9/67:55 am
GEG
- SAN
Nonstop2h 40m
Southwest
Deal found 6/15![Southwest logo]()
$217
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/314:09 pm
SAN
- BOI
1 stop6h 46m
United Airlines
Tue 8/47:05 pm
BOI
- SAN
1 stop6h 26m
United Airlines
Deal found 6/11![United Airlines logo]()
$240
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:03 am
SAN
- GEG
1 stop5h 05m
Delta
Sun 8/301:00 pm
GEG
- SAN
1 stop5h 05m
Delta
Deal found 6/12![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:40 am
SAN
- BOI
2 stops6h 45m
Southwest
Thu 8/204:55 pm
BOI
- SAN
1 stop6h 15m
Southwest
Deal found 6/10![Southwest logo]()
$232
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:10 pm
SAN
- BOI
2 stops5h 05m
Southwest
Sat 9/127:45 am
BOI
- SAN
2 stops6h 25m
Southwest
Deal found 6/11![Southwest logo]()
$234
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:06 am
SAN
- GEG
1 stop8h 08m
Delta
Sun 9/65:30 am
GEG
- SAN
1 stop6h 38m
Delta
Deal found 6/10![Delta logo]()
$262
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:30 am
SAN
- IDA
1 stop7h 53m
United Airlines
Sat 8/294:04 pm
IDA
- SAN
1 stop5h 30m
United Airlines
Deal found 6/11![United Airlines logo]()
$321
This Southwest deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:30 am
SAN
- BOI
Nonstop2h 20m
Southwest
Mon 8/103:45 pm
BOI
- SAN
Nonstop2h 15m
Southwest
Deal found 6/12![Southwest logo]()
$245
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:00 pm
SAN
- GEG
1 stop4h 55m
Delta
Tue 7/215:37 pm
GEG
- SAN
1 stop4h 57m
Delta
Deal found 6/15![Delta logo]()
$270
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:55 am
SAN
- IDA
1 stop5h 29m
Alaska Airlines
Sat 8/292:01 pm
IDA
- SAN
1 stop7h 53m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$331
This Southwest deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:15 am
SAN
- BOI
Nonstop2h 10m
Southwest
Sun 7/126:45 am
BOI
- SAN
Nonstop2h 10m
Southwest
Deal found 6/14![Southwest logo]()
$247
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/219:46 am
SAN
- SUN
1 stop3h 45m
Delta
Tue 7/281:10 pm
SUN
- SAN
1 stop3h 46m
Delta
Deal found 6/14![Delta logo]()
$281
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:35 am
SAN
- IDA
1 stop5h 50m
United Airlines
Fri 7/175:54 pm
IDA
- SAN
1 stop5h 31m
United Airlines
Deal found 6/13![United Airlines logo]()
$344
This Southwest deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:10 pm
SAN
- BOI
2 stops6h 25m
Southwest
Sun 9/137:30 am
BOI
- SAN
1 stop4h 05m
Southwest
Deal found 6/12![Southwest logo]()
$252
This Alaska Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:15 pm
SAN
- SUN
2 stops21h 46m
Alaska Airlines
Thu 8/1310:20 am
SUN
- SAN
2 stops11h 03m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$380
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:20 am
SAN
- SUN
1 stop5h 56m
United Airlines
Thu 8/132:50 pm
SUN
- SAN
1 stop6h 05m
United Airlines
Deal found 6/11![United Airlines logo]()
$361
This Southwest deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:45 pm
SAN
- GEG
1 stop6h 05m
Southwest
Tue 8/45:45 am
GEG
- SAN
2 stops6h 00m
Southwest
Deal found 6/14![Southwest logo]()
$258
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:15 am
SAN
- IDA
2 stops7h 21m
Delta
Sat 7/186:00 am
IDA
- SAN
2 stops10h 08m
Delta
Deal found 6/12![Delta logo]()
$335
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:35 am
SAN
- IDA
1 stop5h 50m
United Airlines
Thu 7/164:14 pm
IDA
- SAN
1 stop7h 11m
United Airlines
Deal found 6/10![United Airlines logo]()
$382
This Southwest deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:40 am
SAN
- BOI
2 stops6h 45m
Southwest
Tue 7/141:05 pm
BOI
- SAN
2 stops6h 15m
Southwest
Deal found 6/14![Southwest logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:30 pm
SAN
- JAC
2 stops14h 00m
Alaska Airlines
Wed 9/162:10 pm
JAC
- SAN
1 stop7h 14m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$434
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/235:01 pm
SAN
- IDA
1 stop4h 30m
Delta
Mon 6/297:00 pm
IDA
- SAN
1 stop4h 18m
Delta
Deal found 6/14![Delta logo]()
$351
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:20 am
SAN
- SUN
1 stop5h 56m
United Airlines
Fri 7/101:57 pm
SUN
- SAN
1 stop6h 54m
United Airlines
Deal found 6/14![United Airlines logo]()
$391
Last-minute flights from San Diego to IdahoDiscover last-minute flight deals from San Diego to Idaho. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Idaho. Data last updated June 15, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:06 pm
SAN
- BOI
Nonstop2h 19m
Alaska Airlines
Tue 7/148:00 pm
BOI
- SAN
Nonstop2h 22m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:15 am
SAN
- BOI
Nonstop2h 10m
Southwest
Tue 7/145:30 am
BOI
- SAN
1 stop6h 20m
Southwest
Deal found 6/14![Southwest logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:30 am
SAN
- BOI
Nonstop2h 16m
Alaska Airlines
Tue 7/147:57 am
BOI
- SAN
Nonstop2h 27m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$197
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:26 am
SAN
- BOI
1 stop6h 18m
United Airlines
Tue 7/147:05 pm
BOI
- SAN
1 stop6h 26m
United Airlines
Deal found 6/15![United Airlines logo]()
$183
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/104:09 pm
SAN
- BOI
1 stop6h 46m
United Airlines
Mon 7/137:05 pm
BOI
- SAN
1 stop4h 44m
United Airlines
Deal found 6/11![United Airlines logo]()
$189
This Southwest deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/118:20 pm
SAN
- BOI
Nonstop2h 15m
Southwest
Tue 7/146:00 am
BOI
- SAN
1 stop4h 10m
Southwest
Deal found 6/12![Southwest logo]()
$187
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/134:09 pm
SAN
- BOI
1 stop6h 46m
United Airlines
Mon 7/207:05 pm
BOI
- SAN
1 stop4h 44m
United Airlines
Deal found 6/12![United Airlines logo]()
$211
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:27 pm
SAN
- GEG
1 stop4h 37m
United Airlines
Thu 7/164:18 pm
GEG
- SAN
1 stop6h 07m
United Airlines
Deal found 6/12![United Airlines logo]()
$239
This Southwest deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:40 am
SAN
- BOI
2 stops6h 45m
Southwest
Tue 7/283:15 pm
BOI
- SAN
Nonstop2h 10m
Southwest
Deal found 6/12![Southwest logo]()
$172
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:05 am
SAN
- BOI
1 stop4h 25m
Southwest
Thu 8/203:45 pm
BOI
- SAN
Nonstop2h 15m
Southwest
Deal found 6/10![Southwest logo]()
$201
This Expedia deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:22 pm
SAN
- GEG
Nonstop2h 45m
Alaska Airlines
Wed 8/58:15 am
GEG
- SAN
Nonstop2h 48m
Alaska Airlines
Deal found 6/12![Alaska Airlines logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/238:51 pm
SAN
- IDA
1 stop18h 09m
Multiple Airlines
Mon 7/2710:47 pm
IDA
- SAN
1 stop16h 21m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$188
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 June 15, 2026.
Search for one-way flight options from San Diego to Idaho. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:22 pm
SAN
- GEG
Nonstop2h 45m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$72
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/510:30 am
SAN
- BOI
Nonstop2h 16m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$78
This Southwest deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:15 am
SAN
- BOI
Nonstop2h 10m
Southwest
Deal found 6/12![Southwest logo]()
$79
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/44:23 pm
SAN
- GEG
1 stop6h 43m
American Airlines
Deal found 6/11![American Airlines logo]()
$81
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/811:15 am
SAN
- GEG
Nonstop2h 45m
Southwest
Deal found 6/11![Southwest logo]()
$86
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:30 pm
SAN
- BOI
1 stop3h 55m
Southwest
Deal found 6/11![Southwest logo]()
$87
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:06 pm
SAN
- BOI
Nonstop2h 19m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$93
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1111:44 am
SAN
- BOI
1 stop7h 21m
United Airlines
Deal found 6/11![United Airlines logo]()
$95
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:30 am
SAN
- GEG
1 stop8h 42m
United Airlines
Deal found 6/11![United Airlines logo]()
$95
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:03 am
SAN
- GEG
1 stop5h 05m
Delta
Deal found 6/11![Delta logo]()
$96
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/118:20 pm
SAN
- BOI
Nonstop2h 15m
Southwest
Deal found 6/11![Southwest logo]()
$99
This Alaska Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:59 pm
SAN
- GEG
Nonstop2h 54m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$99
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 June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $143 (Alaska Airlines) |
One-way from | $72 (Alaska Airlines) |
Popular in | November |
Cheapest in | February |
Average price | $292 |
Good round-trip deal | $242 or less |
Good one-way deal | $115 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 June 15, 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 DiegoBoise
SAN - BOI
SANBOI
San Diego
Sat 8/29
10:45 am-2:02 pm
Nonstop2h 17m
Boise Air Term. Gowen Fld
Tue 9/1
6:49 pm-8:19 pm
Nonstop2h 30m
$177
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Tue 7/14
11:01 am-4:44 pm
1 stop4h 43m
Boise Air Term. Gowen Fld
Fri 7/17
7:05 pm-10:49 pm
1 stop4h 44m
$189
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Thu 9/17
6:35 am-1:15 pm
1 stop5h 40m
Boise Air Term. Gowen Fld
Sat 9/19
6:40 am-7:55 am
Nonstop2h 15m
$211
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Fri 8/14
8:20 am-1:15 pm
1 stop3h 55m
Boise Air Term. Gowen Fld
Thu 8/20
3:45 pm-5:00 pm
Nonstop2h 15m
$211
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Wed 9/9
11:05 am-6:47 pm
1 stop7h 42m
Spokane
Sun 9/13
5:20 am-10:11 am
1 stop4h 51m
$214
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Sat 9/5
9:46 am-4:09 pm
1 stop6h 23m
Spokane
Wed 9/9
5:10 am-10:09 am
1 stop4h 59m
$217
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Fri 9/4
2:15 pm-4:55 pm
Nonstop2h 40m
Spokane
Sun 9/6
7:55 am-10:35 am
Nonstop2h 40m
$217
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Tue 7/14
6:40 am-2:25 pm
2 stops6h 45m
Boise Air Term. Gowen Fld
Thu 8/20
4:55 pm-10:10 pm
1 stop6h 15m
$232
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Sat 9/5
7:59 pm-10:49 pm
Nonstop2h 50m
Spokane
Wed 9/9
2:02 pm-7:00 pm
1 stop4h 58m
$234
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Wed 9/9
4:10 pm-10:15 pm
2 stops5h 05m
Boise Air Term. Gowen Fld
Sat 9/12
7:45 am-1:10 pm
2 stops6h 25m
$234
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-BOI
SAN-IDA
SAN-GEG
SAN-SUN
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-BOI
SAN-IDA
SAN-GEG
SAN-SUN
What is the cheapest month to book a flight from San Diego to Idaho?
Currently, May is the cheapest month in which you can book a flight from San Diego to Idaho (average of $68). Flying from San Diego to Idaho in June is currently the most expensive (average of $199). 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 June 15, 2026.
It’s optimal to fly from San Diego to Idaho at noon. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight in the morning.
Weekly flight availability from San Diego to Idaho
Explore weekly flight availability from San Diego 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 June 15, 2026.
The most flights from SAN to USID are scheduled on a Friday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).
How much does it cost to fly round-trip from San Diego to Idaho?
How far ahead should I book a flight from San Diego to Idaho?
Booking 22 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Idaho. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 June 15, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, 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.
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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
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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 June 15, 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 June 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$106 | Average$432 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$127 | Average$237 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$144 | Average$386 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$153 | Average$333 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$167 | Average$277 | FlexibilityNo cancel fee | On-time63% |