$68+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOI
Sep 4 — Sep 111
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 August 5, 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 August 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:03 pm -
1 stop15h 52m
Mon 9/212:50 pm -
1 stop6h 27m
Deal found 8/1![Frontier logo]()
$130
This Trip.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/294:58 pm -
Nonstop2h 22m
Sat 9/56:49 pm -
Nonstop2h 30m
Deal found 8/1![Alaska Airlines logo]()
$132
This Alaska Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:58 pm -
Nonstop2h 22m
Sat 9/197:20 am -
Nonstop2h 21m
Deal found 7/31![Alaska Airlines logo]()
$137
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:00 am -
1 stop8h 14m
Tue 9/2211:10 am -
1 stop6h 49m
Deal found 7/31![Delta logo]()
$137
This Southwest deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:20 am -
1 stop4h 10m
Sun 9/66:20 am -
Nonstop2h 15m
Deal found 8/2![Southwest logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/165:54 pm -
1 stop19h 01m
Mon 9/212:50 pm -
1 stop6h 27m
Deal found 8/1![Frontier logo]()
$144
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:20 pm -
1 stop4h 50m
Sun 8/307:00 am -
Nonstop2h 15m
Deal found 7/31![Southwest logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/195:54 pm -
1 stop19h 01m
Mon 9/212:50 pm -
1 stop6h 27m
Deal found 8/1![Frontier logo]()
$151
This Trip.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:59 pm -
Nonstop2h 50m
Sun 9/67:03 am -
Nonstop2h 51m
Deal found 8/4![Alaska Airlines logo]()
$151
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:50 pm -
2 stops5h 05m
Sat 9/56:40 am -
Nonstop2h 15m
Deal found 8/1![Southwest logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 10/89:43 pm -
1 stop16h 14m
Thu 10/223:52 pm -
1 stop5h 56m
Deal found 8/3![Frontier logo]()
$153
This Alaska Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/14:58 pm -
Nonstop2h 22m
Tue 9/86:49 pm -
Nonstop2h 30m
Deal found 8/1![Alaska Airlines logo]()
$156
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 August 5, 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 August 5, 2026.
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/275:30 pm -
Nonstop2h 10m
Sun 8/307:00 am -
Nonstop2h 15m
Deal found 8/1![Southwest logo]()
$137
This Alaska Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/1710:45 am -
Nonstop2h 17m
Mon 9/217:20 am -
Nonstop2h 21m
Deal found 8/2![Alaska Airlines logo]()
$137
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:46 am -
1 stop6h 23m
Wed 9/95:10 am -
1 stop4h 59m
Deal found 7/31![Delta logo]()
$187
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/267:00 am -
1 stop7h 24m
Sat 10/34:05 pm -
1 stop5h 34m
Deal found 8/3![United Airlines logo]()
$261
This Alaska Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/284:58 pm -
Nonstop2h 22m
Sun 8/307:20 am -
Nonstop2h 21m
Deal found 7/31![Alaska Airlines logo]()
$137
This Alaska Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/164:58 pm -
Nonstop2h 22m
Sat 9/197:20 am -
Nonstop2h 21m
Deal found 8/2![Alaska Airlines logo]()
$137
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/122:50 pm -
2 stops6h 15m
Sat 9/194:05 pm -
1 stop3h 50m
Deal found 8/1![Southwest logo]()
$158
This Southwest deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/105:30 pm -
Nonstop2h 15m
Mon 9/146:30 am -
Nonstop2h 15m
Deal found 8/3![Southwest logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:59 pm -
Nonstop2h 51m
Sun 11/17:02 am -
Nonstop2h 53m
Deal found 7/31![Alaska Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/298:40 am -
1 stop5h 00m
Sat 9/52:15 pm -
Nonstop2h 40m
Deal found 8/1![Southwest logo]()
$175
This Alaska Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/110:45 am -
Nonstop2h 17m
Sat 9/56:49 pm -
Nonstop2h 30m
Deal found 8/4![Alaska Airlines logo]()
$167
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/252:15 pm -
Nonstop2h 40m
Mon 9/285:35 pm -
1 stop4h 10m
Deal found 8/4![Southwest logo]()
$180
This Delta deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:11 pm -
1 stop6h 48m
Tue 9/19:23 am -
1 stop5h 53m
Deal found 8/3![Delta logo]()
$249
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/52:50 pm -
2 stops5h 35m
Sun 9/66:15 am -
1 stop6h 05m
Deal found 8/4![Southwest logo]()
$182
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/86:30 am -
1 stop6h 03m
Tue 9/152:50 pm -
1 stop6h 12m
Deal found 8/1![United Airlines logo]()
$281
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:25 pm -
1 stop3h 58m
Tue 9/17:00 pm -
1 stop4h 56m
Deal found 7/31![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 -
Nonstop2h 40m
Wed 9/96:15 am -
2 stops8h 00m
Deal found 8/2![Southwest logo]()
$185
This Alaska Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 10/157:59 pm -
Nonstop2h 51m
Sat 10/175:07 am -
2 stops13h 53m
Deal found 8/4![Alaska Airlines logo]()
$208
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:25 pm -
1 stop3h 58m
Sun 8/307:00 pm -
1 stop5h 50m
Deal found 7/31![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:45 am -
1 stop5h 43m
Mon 11/22:25 pm -
1 stop7h 11m
Deal found 7/31![United Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/17:05 am -
1 stop4h 45m
Sat 9/511:20 am -
2 stops6h 50m
Deal found 8/3![Southwest logo]()
$186
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:25 pm -
1 stop3h 58m
Tue 9/17:00 pm -
1 stop4h 56m
Deal found 7/31![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/18:40 am -
1 stop5h 20m
Tue 9/86:25 am -
Nonstop2h 15m
Deal found 8/4![Southwest logo]()
$187
This Delta deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 10/76:15 am -
1 stop5h 07m
Tue 10/136:00 am -
1 stop3h 47m
Deal found 8/3![Delta logo]()
$261
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/106:30 am -
Nonstop2h 20m
Sun 9/137:50 pm -
Nonstop2h 15m
Deal found 8/4![Southwest logo]()
$192
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/95:01 pm -
1 stop4h 21m
Tue 9/156:00 am -
1 stop3h 41m
Deal found 8/2![Delta logo]()
$261
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:00 am -
1 stop7h 24m
Mon 10/264:10 pm -
1 stop5h 26m
Deal found 7/30![United Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:15 am -
2 stops11h 08m
Mon 8/317:00 pm -
1 stop4h 56m
Deal found 7/31![Delta logo]()
$262
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/284:10 pm -
2 stops7h 05m
Fri 9/45:10 pm -
1 stop5h 00m
Deal found 7/31![Southwest logo]()
$198
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:45 am -
1 stop5h 40m
Wed 11/44:10 pm -
1 stop7h 20m
Deal found 7/31![United Airlines logo]()
$367
Last-minute flights from San Diego to IdahoDiscover last-minute flight deals from San Diego to Idaho. Data last updated August 5, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Idaho. Data last updated August 5, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:20 pm -
1 stop4h 50m
Sun 8/307:00 am -
Nonstop2h 15m
Deal found 7/31![Southwest logo]()
$147
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:13 pm -
1 stop3h 46m
Tue 9/11:06 pm -
1 stop6h 00m
Deal found 7/31![Delta logo]()
$157
This Trip.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/294:58 pm -
Nonstop2h 22m
Sat 9/56:49 pm -
Nonstop2h 30m
Deal found 8/1![Alaska Airlines logo]()
$132
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:50 pm -
2 stops5h 05m
Sat 9/56:40 am -
Nonstop2h 15m
Deal found 8/1![Southwest logo]()
$152
This Southwest deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:20 am -
1 stop4h 10m
Sun 9/66:20 am -
Nonstop2h 15m
Deal found 8/2![Southwest logo]()
$143
This Alaska Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/14:58 pm -
Nonstop2h 22m
Tue 9/86:49 pm -
Nonstop2h 30m
Deal found 8/1![Alaska Airlines logo]()
$156
This Trip.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:59 pm -
Nonstop2h 50m
Sun 9/67:03 am -
Nonstop2h 51m
Deal found 8/4![Alaska Airlines logo]()
$151
This Alaska Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:58 pm -
Nonstop2h 22m
Sat 9/197:20 am -
Nonstop2h 21m
Deal found 7/31![Alaska Airlines logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/165:54 pm -
1 stop19h 01m
Mon 9/212:50 pm -
1 stop6h 27m
Deal found 8/1![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:03 pm -
1 stop15h 52m
Mon 9/212:50 pm -
1 stop6h 27m
Deal found 8/1![Frontier logo]()
$130
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:00 am -
1 stop8h 14m
Tue 9/2211:10 am -
1 stop6h 49m
Deal found 7/31![Delta logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/195:54 pm -
1 stop19h 01m
Mon 9/212:50 pm -
1 stop6h 27m
Deal found 8/1![Frontier logo]()
$151
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 August 5, 2026.
Search for one-way flight options from San Diego to Idaho. Find affordable one-way fares based on user searches. Data last updated August 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/279:03 pm -
1 stop15h 52m
Deal found 7/31![Frontier logo]()
$68
This Alaska Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 10/307:31 pm -
Nonstop2h 20m
Deal found 8/2![Alaska Airlines logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:03 pm -
1 stop15h 52m
Deal found 8/3![Frontier logo]()
$73
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:20 am -
1 stop4h 10m
Deal found 7/31![Southwest logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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
Deal found 8/1![Frontier logo]()
$75
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:30 pm -
1 stop4h 00m
Deal found 7/31![Southwest logo]()
$79
This Alaska Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 -
Nonstop2h 50m
Deal found 8/3![Alaska Airlines logo]()
$79
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:15 am -
1 stop6h 07m
Deal found 7/31![American Airlines logo]()
$80
This Alaska Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/304:58 pm -
Nonstop2h 22m
Deal found 8/3![Alaska Airlines logo]()
$84
This Alaska Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/308:59 pm -
Nonstop2h 54m
Deal found 8/3![Alaska Airlines logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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
Deal found 8/3![Frontier logo]()
$87
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:15 am -
Nonstop2h 45m
Deal found 8/4![Southwest logo]()
$87
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 August 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $117 (Alaska Airlines) |
One-way from | $68 (Kiwi.com) |
Popular in | November |
Cheapest in | February |
Average price | $297 |
Good round-trip deal | $197 or less |
Good one-way deal | $148 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 August 5, 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 - BOI
SANBOI
San Diego
Thu 8/27
5:30 pm-8:40 pm
Nonstop2h 10m
Boise Air Term. Gowen Fld
Sun 8/30
7:00 am-8:15 am
Nonstop2h 15m
$137
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Thu 9/17
10:45 am-2:02 pm
Nonstop2h 17m
Boise Air Term. Gowen Fld
Mon 9/21
7:20 am-8:41 am
Nonstop2h 21m
$137
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Fri 8/28
4:58 pm-8:20 pm
Nonstop2h 22m
Boise Air Term. Gowen Fld
Sun 8/30
7:20 am-8:41 am
Nonstop2h 21m
$137
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Wed 9/16
4:58 pm-8:20 pm
Nonstop2h 22m
Boise Air Term. Gowen Fld
Sat 9/19
7:20 am-8:41 am
Nonstop2h 21m
$137
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Fri 10/30
7:59 pm-10:50 pm
Nonstop2h 51m
Spokane
Sun 11/1
7:02 am-9:55 am
Nonstop2h 53m
$157
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Sat 9/12
2:50 pm-10:05 pm
2 stops6h 15m
Boise Air Term. Gowen Fld
Sat 9/19
4:05 pm-6:55 pm
1 stop3h 50m
$158
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Thu 9/10
5:30 pm-8:45 pm
Nonstop2h 15m
Boise Air Term. Gowen Fld
Mon 9/14
6:30 am-7:45 am
Nonstop2h 15m
$167
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Tue 9/1
10:45 am-2:02 pm
Nonstop2h 17m
Boise Air Term. Gowen Fld
Sat 9/5
6:49 pm-8:19 pm
Nonstop2h 30m
$167
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Sat 8/29
8:40 am-1:40 pm
1 stop5h 00m
Spokane
Sat 9/5
2:15 pm-4:55 pm
Nonstop2h 40m
$175
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Fri 9/25
2:15 pm-4:55 pm
Nonstop2h 40m
Spokane
Mon 9/28
5:35 pm-9:45 pm
1 stop4h 10m
$180
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-IDA
SAN-JAC
SAN-SUN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Diego to Idaho
SAN-USID
SAN-BOI
SAN-GEG
SAN-IDA
SAN-JAC
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 $372). 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 August 5, 2026.
It’s optimal to fly from San Diego to Idaho at noon. By choosing this option you can save up to 36% 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 August 5, 2026.
The most flights from SAN to USID are scheduled on a Tuesday (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?
Airfare is below average for this route at the moment.
San Diego to Idaho flights typically cost between $207 and $386 in September.The cheapest round-trip price found within the last 5 days was $130 on Frontier (Sep 17-Sep 21).
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 August 5, 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
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Crew
8.6
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 August 5, 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 6 airlines flying from San Diego to Idaho
Discover the top 6 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 August 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$108 | Average$407 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$127 | Average$157 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$134 | Average$381 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$157 | Average$352 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$164 | Average$279 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$256 | Average$306 | FlexibilityNo cancel fee | On-time62% |