$74+ Cheap flights from San Diego (SAN) to Idaho
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOI
Oct 13 — Oct 201
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 September 13, 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 September 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:54 pm -
1 stop19h 01m
Mon 10/192:50 pm -
1 stop5h 59m
Deal found 9/10![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:03 pm -
1 stop15h 52m
Mon 10/52:50 pm -
1 stop27h 09m
Deal found 9/11![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:34 pm -
1 stop16h 21m
Mon 10/192:50 pm -
1 stop5h 59m
Deal found 9/10![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:54 pm -
1 stop19h 01m
Fri 10/162:50 pm -
1 stop26h 59m
Deal found 9/10![Frontier logo]()
$153
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:05 am -
Nonstop2h 10m
Wed 10/77:00 am -
Nonstop2h 15m
Deal found 9/9![Southwest logo]()
$157
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:51 pm -
Nonstop2h 49m
Wed 10/147:19 am -
Nonstop2h 52m
Deal found 9/10![Alaska Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:54 pm -
1 stop19h 01m
Mon 10/52:50 pm -
1 stop27h 09m
Deal found 9/11![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:34 pm -
1 stop16h 21m
Mon 10/192:50 pm -
2 stops24h 39m
Deal found 9/11![Frontier logo]()
$161
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 10/77:59 pm -
Nonstop2h 51m
Tue 10/137:19 am -
Nonstop2h 52m
Deal found 9/10![Alaska Airlines logo]()
$161
This Southwest deal was found by Cheapflights users on 9/10. 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.
Sat 10/1710:40 am -
Nonstop2h 10m
Tue 10/2011:55 am -
1 stop4h 05m
Deal found 9/10![Southwest logo]()
$163
This Southwest deal was found by Cheapflights users on 9/12. 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 10/2911:15 am -
Nonstop2h 50m
Mon 11/212:05 pm -
1 stop4h 20m
Deal found 9/12![Southwest logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:34 pm -
1 stop16h 21m
Fri 10/162:50 pm -
1 stop26h 59m
Deal found 9/10![Frontier logo]()
$164
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 September 13, 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 September 13, 2026.
This Southwest deal was found by Cheapflights users on 9/10. 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.
Sat 10/106:25 pm -
Nonstop2h 15m
Sat 10/171:35 pm -
Nonstop2h 15m
Deal found 9/10![Southwest logo]()
$157
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/76:57 pm -
1 stop4h 53m
Wed 10/144:24 pm -
1 stop7h 18m
Deal found 9/8![Delta logo]()
$177
This Alaska Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 9/297:00 am -
1 stop6h 22m
Tue 10/67:19 am -
Nonstop2h 52m
Deal found 9/9![Alaska Airlines logo]()
$202
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 1/2312:45 pm -
1 stop7h 26m
Wed 1/277:00 am -
2 stops12h 35m
Deal found 9/8![United Airlines logo]()
$252
This Southwest deal was found by Cheapflights users on 9/11. 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 11/52:25 pm -
Nonstop2h 45m
Mon 11/910:55 am -
Nonstop2h 45m
Deal found 9/11![Southwest logo]()
$157
This Southwest deal was found by Cheapflights users on 9/12. 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 10/2911:15 am -
Nonstop2h 50m
Mon 11/210:55 am -
Nonstop2h 45m
Deal found 9/12![Southwest logo]()
$157
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/76:57 pm -
1 stop4h 53m
Tue 10/135:10 am -
1 stop7h 48m
Deal found 9/9![Delta logo]()
$177
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 12/16:40 pm -
Nonstop2h 10m
Sat 12/55:55 am -
1 stop5h 30m
Deal found 9/8![Southwest logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/85:20 pm -
1 stop5h 39m
Sat 10/177:20 am -
Nonstop2h 21m
Deal found 9/10![Alaska Airlines logo]()
$207
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/176:15 am -
1 stop5h 40m
Tue 10/2011:55 am -
1 stop4h 05m
Deal found 9/8![Southwest logo]()
$172
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/35:15 pm -
1 stop4h 20m
Mon 10/57:45 pm -
1 stop4h 30m
Deal found 9/9![Southwest logo]()
$177
This Alaska Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/2811:10 am -
1 stop10h 49m
Tue 11/33:55 pm -
1 stop5h 32m
Deal found 9/9![Alaska Airlines logo]()
$261
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/810:45 am -
1 stop4h 20m
Tue 10/131:25 pm -
2 stops9h 00m
Deal found 9/8![Southwest logo]()
$182
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 1/42:45 pm -
1 stop6h 45m
Thu 1/71:35 pm -
1 stop7h 12m
Deal found 9/8![United Airlines logo]()
$294
This Southwest deal was found by Cheapflights users on 9/11. 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 11/62:25 pm -
Nonstop2h 45m
Mon 11/910:55 am -
Nonstop2h 45m
Deal found 9/11![Southwest logo]()
$185
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 1/217:15 am -
1 stop7h 00m
Mon 1/254:25 pm -
1 stop5h 47m
Deal found 9/11![United Airlines logo]()
$317
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 3/59:45 am -
1 stop5h 44m
Tue 3/91:10 pm -
1 stop6h 36m
Deal found 9/8![Delta logo]()
$317
This Alaska Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/296:53 am -
1 stop5h 28m
Tue 11/33:55 pm -
1 stop5h 32m
Deal found 9/9![Alaska Airlines logo]()
$291
This Southwest deal was found by Cheapflights users on 9/10. 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 10/202:20 pm -
1 stop6h 35m
Sun 10/2511:05 am -
Nonstop2h 50m
Deal found 9/10![Southwest logo]()
$185
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/16:15 am -
1 stop5h 03m
Sat 10/31:00 pm -
1 stop3h 56m
Deal found 9/9![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:15 pm -
2 stops5h 40m
Wed 10/145:40 am -
2 stops5h 55m
Deal found 9/8![Southwest logo]()
$187
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Thu 10/156:15 am -
1 stop6h 30m
Fri 10/168:00 am -
1 stop4h 35m
Deal found 9/12![United Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 11/236:34 pm -
Nonstop2h 31m
Thu 11/265:40 am -
1 stop7h 03m
Deal found 9/8![Alaska Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 2/149:45 am -
1 stop4h 09m
Fri 2/193:25 pm -
2 stops8h 24m
Deal found 9/9![Delta logo]()
$346
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/229:45 am -
1 stop5h 54m
Thu 10/294:10 pm -
2 stops9h 09m
Deal found 9/8![United Airlines logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 12/47:00 am -
1 stop6h 27m
Mon 12/74:00 pm -
1 stop5h 07m
Deal found 9/8![Alaska Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 9/12. 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 1/116:15 am -
2 stops10h 59m
Sat 1/161:10 pm -
2 stops10h 39m
Deal found 9/12![Delta logo]()
$355
This Southwest deal was found by Cheapflights users on 9/12. 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 11/1911:00 am -
Nonstop2h 15m
Sun 11/226:35 am -
Nonstop2h 10m
Deal found 9/12![Southwest logo]()
$232
This Alaska Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/78:50 am -
2 stops13h 09m
Tue 10/133:57 pm -
1 stop18h 59m
Deal found 9/8![Alaska Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/278:45 am -
1 stop5h 43m
Thu 10/297:00 am -
1 stop6h 56m
Deal found 9/10![United Airlines logo]()
$387
Last-minute flights from San Diego to IdahoDiscover last-minute flight deals from San Diego to Idaho. Data last updated September 13, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Idaho. Data last updated September 13, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:54 pm -
1 stop19h 01m
Mon 10/52:50 pm -
1 stop27h 09m
Deal found 9/11![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:03 pm -
1 stop15h 52m
Mon 10/52:50 pm -
1 stop27h 09m
Deal found 9/11![Frontier logo]()
$131
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:20 pm -
Nonstop2h 15m
Mon 10/125:15 pm -
Nonstop2h 15m
Deal found 9/8![Southwest logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:54 pm -
1 stop19h 01m
Mon 10/192:50 pm -
1 stop5h 59m
Deal found 9/10![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:54 pm -
1 stop19h 01m
Fri 10/162:50 pm -
1 stop26h 59m
Deal found 9/10![Frontier logo]()
$153
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 10/77:59 pm -
Nonstop2h 51m
Tue 10/137:19 am -
Nonstop2h 52m
Deal found 9/10![Alaska Airlines logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:34 pm -
1 stop16h 21m
Mon 10/192:50 pm -
1 stop5h 59m
Deal found 9/10![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:34 pm -
1 stop16h 21m
Fri 10/162:50 pm -
1 stop26h 59m
Deal found 9/10![Frontier logo]()
$164
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:51 pm -
Nonstop2h 49m
Wed 10/147:19 am -
Nonstop2h 52m
Deal found 9/10![Alaska Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:34 pm -
1 stop16h 21m
Mon 10/192:50 pm -
2 stops24h 39m
Deal found 9/11![Frontier logo]()
$161
This Southwest deal was found by Cheapflights users on 9/10. 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.
Sat 10/1710:40 am -
Nonstop2h 10m
Tue 10/2011:55 am -
1 stop4h 05m
Deal found 9/10![Southwest logo]()
$163
This Southwest deal was found by Cheapflights users on 9/12. 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 10/2911:15 am -
Nonstop2h 50m
Mon 11/212:05 pm -
1 stop4h 20m
Deal found 9/12![Southwest logo]()
$163
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 September 13, 2026.
Search for one-way flight options from San Diego to Idaho. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/75:54 pm -
1 stop19h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$74
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 11/104:20 pm -
Nonstop2h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Alaska Airlines logo]()
$79
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/87:59 pm -
Nonstop2h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Alaska Airlines logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:22 pm -
1 stop19h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$89
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/83:00 pm -
1 stop7h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$89
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 10/86:57 pm -
1 stop4h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:34 pm -
1 stop16h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$93
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:15 pm -
2 stops5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Southwest logo]()
$94
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:15 pm -
2 stops5h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Southwest logo]()
$94
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/97:59 pm -
Nonstop2h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Alaska Airlines logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:34 pm -
1 stop18h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$98
This Delta deal was found by Cheapflights users on 9/10. 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.
Wed 11/113:00 pm -
1 stop6h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta 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 September 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $128 (Kiwi.com) |
One-way from | $74 (Kiwi.com) |
Popular in | November |
Cheapest in | February |
Average price | $207 |
Good round-trip deal | $157 or less |
Good one-way deal | $91 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 7,457,451 searches. Data last updated September 13, 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
Quickest round-trip
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Thu 12/24
6:40 pm-9:50 pm
Nonstop2h 10m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$79
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Wed 12/9
7:55 pm-11:13 pm
Nonstop2h 18m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$79
San DiegoSpokane
SAN San Diego - GEG Spokane
SANGEG
San Diego
Wed 11/11
6:39 pm-9:29 pm
Nonstop2h 50m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
San DiegoSpokane
SAN San Diego - GEG Spokane
SANGEG
San Diego
Wed 12/9
8:59 pm-11:47 pm
Nonstop2h 48m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
San DiegoSpokane
SAN San Diego - GEG Spokane
SANGEG
San Diego
Tue 12/8
8:59 pm-11:47 pm
Nonstop2h 48m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
San DiegoIdaho Falls
SAN San Diego - IDA Idaho Falls Fanning Field
SANIDA
San Diego
Wed 12/2
6:22 pm-3:15 pm
1 stop19h 53m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$89
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Sat 12/5
3:00 pm-10:58 pm
1 stop6h 58m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$89
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Sat 11/7
6:15 am-12:16 pm
1 stop5h 01m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$89
San DiegoBoise
SAN San Diego - BOI Boise Air Term. Gowen Fld
SANBOI
San Diego
Mon 11/9
7:00 pm-1:25 am
1 stop5h 25m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$89
San DiegoSpokane
SAN San Diego - GEG Spokane
SANGEG
San Diego
Thu 12/10
1:49 pm-9:05 pm
1 stop7h 16m
Spokane
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$89
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-GEG
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-BOI
SAN-GEG
SAN-SUN
SAN-IDA
What is the cheapest month to book a flight from San Diego to Idaho?
Currently, February is the cheapest month in which you can book a flight from San Diego to Idaho (average of $222). Flying from San Diego to Idaho in November is currently the most expensive (average of $388). 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 September 13, 2026.
It’s optimal to fly from San Diego to Idaho in the afternoon. By choosing this option you can save up to 23% 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 September 13, 2026.
The most flights from SAN to USID are scheduled on a Monday (6 on average). You will have fewer flight options on Tuesday, 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?
Airfare is below average for this route at the moment.
San Diego to Idaho flights typically cost between $170 and $267 in October.The cheapest round-trip price found within the last 5 days was $128 on Frontier (Oct 7-Oct 19).
How far ahead should I book a flight from San Diego to Idaho?
Booking 23 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 September 13, 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.
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from San 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 September 13, 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 7,457,451 searches. Data last updated September 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$108 | Average$399 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$134 | Average$329 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$139 | Average$348 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$157 | Average$278 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$256 | Average$306 | FlexibilityNo cancel fee | On-time62% |