$67+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOI
May 29 — Jun 51
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Diego to Idaho with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Diego to Idaho
Cheapest
Best
Last-minute
One-way
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 April 29, 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 April 29, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 6/46:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Tue 6/97:01 am
GEG
- SAN
Nonstop2h 49m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$133
This Expedia deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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.
Thu 5/286:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Thu 6/47:01 am
GEG
- SAN
Nonstop2h 49m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$136
This Alaska Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Sun 5/317:01 am
GEG
- SAN
Nonstop2h 49m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$139
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 6/58:25 am
SAN
- GEG
Nonstop2h 40m
Southwest
Fri 6/125:10 pm
GEG
- SAN
1 stop5h 30m
Southwest
Deal found 4/27![Southwest logo]()
$143
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/2812:45 pm
SAN
- GEG
1 stop4h 15m
Southwest
Thu 6/412:55 pm
GEG
- SAN
Nonstop2h 40m
Southwest
Deal found 4/28![Southwest logo]()
$146
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:40 am
SAN
- GEG
Nonstop2h 45m
Southwest
Tue 6/22:25 pm
GEG
- SAN
1 stop7h 05m
Southwest
Deal found 4/28![Southwest logo]()
$149
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:45 pm
SAN
- GEG
1 stop4h 33m
Delta
Sun 6/75:00 am
GEG
- SAN
1 stop7h 38m
Delta
Deal found 4/28![Delta logo]()
$153
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 6/21:37 pm
SAN
- GEG
1 stop5h 06m
Delta
Fri 6/121:30 pm
GEG
- SAN
1 stop4h 38m
Delta
Deal found 4/27![Delta logo]()
$156
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 7/1311:01 am
SAN
- BOI
1 stop4h 43m
United Airlines
Sat 7/187:05 pm
BOI
- SAN
1 stop4h 44m
United Airlines
Deal found 4/27![United Airlines logo]()
$159
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/293:45 pm
SAN
- GEG
1 stop7h 06m
Delta
Sun 5/315:37 pm
GEG
- SAN
1 stop4h 49m
Delta
Deal found 4/29![Delta logo]()
$159
This CheapOair deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Sun 5/317:01 am
GEG
- SAN
Nonstop2h 49m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$168
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 8/246:28 pm
SAN
- BOI
1 stop4h 22m
United Airlines
Sun 8/307:01 pm
BOI
- SAN
1 stop6h 28m
United Airlines
Deal found 4/28![United Airlines logo]()
$184
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 April 29, 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 April 29, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Sun 5/317:01 am
GEG
- SAN
Nonstop2h 49m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$139
This Southwest deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 7/98:25 am
SAN
- GEG
Nonstop2h 40m
Southwest
Tue 7/1410:20 am
GEG
- SAN
1 stop4h 55m
Southwest
Deal found 4/25![Southwest logo]()
$143
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 7/241:36 pm
SAN
- GEG
1 stop5h 39m
Delta
Thu 7/309:20 am
GEG
- SAN
1 stop5h 52m
Delta
Deal found 4/28![Delta logo]()
$153
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 7/1311:01 am
SAN
- BOI
1 stop4h 43m
United Airlines
Fri 7/177:05 pm
BOI
- SAN
1 stop4h 44m
United Airlines
Deal found 4/25![United Airlines logo]()
$159
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:40 am
SAN
- GEG
Nonstop2h 45m
Southwest
Tue 6/22:25 pm
GEG
- SAN
1 stop7h 05m
Southwest
Deal found 4/28![Southwest logo]()
$149
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:15 am
SAN
- GEG
1 stop5h 46m
Delta
Sat 5/304:59 pm
GEG
- SAN
1 stop4h 56m
Delta
Deal found 4/25![Delta logo]()
$159
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 6/58:25 am
SAN
- GEG
Nonstop2h 40m
Southwest
Sun 6/76:40 pm
GEG
- SAN
1 stop4h 35m
Southwest
Deal found 4/26![Southwest logo]()
$183
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 6/139:47 am
SAN
- GEG
1 stop6h 23m
Delta
Tue 6/231:19 pm
GEG
- SAN
1 stop4h 49m
Delta
Deal found 4/24![Delta logo]()
$206
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 7/239:26 am
SAN
- BOI
1 stop6h 18m
United Airlines
Mon 7/277:05 pm
BOI
- SAN
1 stop4h 44m
United Airlines
Deal found 4/26![United Airlines logo]()
$239
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 7/94:11 pm
SAN
- GEG
1 stop7h 44m
Delta
Sun 7/127:08 pm
GEG
- SAN
1 stop4h 42m
Delta
Deal found 4/26![Delta logo]()
$206
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/169:40 am
SAN
- GEG
Nonstop2h 45m
Southwest
Sun 5/2411:20 am
GEG
- SAN
1 stop4h 55m
Southwest
Deal found 4/28![Southwest logo]()
$209
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/2912:25 pm
SAN
- BOI
Nonstop2h 15m
Southwest
Tue 6/211:35 am
BOI
- SAN
1 stop7h 05m
Southwest
Deal found 4/28![Southwest logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 9/38:13 pm
SAN
- IDA
1 stop15h 53m
Alaska Airlines
Tue 9/86:18 am
IDA
- SAN
1 stop6h 28m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$291
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/123:45 pm
SAN
- GEG
1 stop5h 28m
Delta
Wed 5/277:25 am
GEG
- SAN
1 stop7h 23m
Delta
Deal found 4/27![Delta logo]()
$219
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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.
Sun 5/316:20 am
SAN
- SUN
1 stop5h 56m
United Airlines
Wed 6/32:38 pm
SUN
- SAN
1 stop7h 08m
United Airlines
Deal found 4/24![United Airlines logo]()
$281
This Alaska Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/233:56 pm
SAN
- IDA
1 stop5h 57m
Alaska Airlines
Wed 5/274:03 pm
IDA
- SAN
1 stop5h 17m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$301
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/84:09 pm
SAN
- SUN
1 stop4h 42m
United Airlines
Mon 6/151:57 pm
SUN
- SAN
1 stop6h 54m
United Airlines
Deal found 4/24![United Airlines logo]()
$281
This Southwest deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 6/49:05 pm
SAN
- BOI
Nonstop2h 15m
Southwest
Sun 6/76:45 am
BOI
- SAN
Nonstop2h 10m
Southwest
Deal found 4/24![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:15 am
SAN
- BOI
1 stop7h 19m
Delta
Sun 6/76:43 am
BOI
- SAN
1 stop6h 55m
Delta
Deal found 4/24![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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.
Sun 7/126:20 am
SAN
- JAC
1 stop6h 28m
United Airlines
Wed 7/158:00 am
JAC
- SAN
1 stop7h 08m
United Airlines
Deal found 4/28![United Airlines logo]()
$301
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 11m
Alaska Airlines
Mon 8/314:14 pm
IDA
- SAN
2 stops21h 06m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 5/217:15 am
SAN
- BOI
1 stop6h 28m
Delta
Sun 5/2410:50 am
BOI
- SAN
1 stop6h 06m
Delta
Deal found 4/25![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 7/246:55 pm
SAN
- BOI
1 stop5h 50m
Southwest
Sun 7/266:45 am
BOI
- SAN
Nonstop2h 10m
Southwest
Deal found 4/29![Southwest logo]()
$287
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 6/85:01 pm
SAN
- SUN
1 stop4h 08m
Delta
Mon 6/151:10 pm
SUN
- SAN
1 stop5h 58m
Delta
Deal found 4/24![Delta logo]()
$281
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/281:39 pm
SAN
- JAC
1 stop6h 51m
United Airlines
Thu 6/44:23 pm
JAC
- SAN
1 stop5h 23m
United Airlines
Deal found 4/29![United Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:15 am
SAN
- SUN
1 stop4h 42m
Delta
Sat 5/233:20 pm
SUN
- SAN
2 stops8h 55m
Delta
Deal found 4/27![Delta logo]()
$286
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/131:20 pm
SAN
- BOI
Nonstop2h 20m
Southwest
Fri 5/152:15 pm
BOI
- SAN
Nonstop2h 10m
Southwest
Deal found 4/28![Southwest logo]()
$317
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/226:35 am
SAN
- SUN
1 stop6h 12m
United Airlines
Mon 5/251:57 pm
SUN
- SAN
1 stop6h 54m
United Airlines
Deal found 4/27![United Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 7/16:15 am
SAN
- BOI
1 stop7h 09m
Delta
Wed 7/810:35 am
BOI
- SAN
1 stop8h 30m
Delta
Deal found 4/27![Delta logo]()
$288
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 7/304:25 pm
SAN
- BOI
2 stops6h 50m
Southwest
Mon 8/35:55 pm
BOI
- SAN
1 stop6h 10m
Southwest
Deal found 4/29![Southwest logo]()
$322
Last-minute flights from San Diego to IdahoDiscover last-minute flight deals from San Diego to Idaho. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Idaho. Data last updated April 29, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 5/183:45 pm
SAN
- GEG
1 stop7h 06m
Delta
Mon 6/87:08 pm
GEG
- SAN
1 stop4h 45m
Delta
Deal found 4/25![Delta logo]()
$156
This Alaska Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/226:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Sun 5/247:01 am
GEG
- SAN
Nonstop2h 49m
Alaska Airlines
Deal found 4/26![Alaska Airlines logo]()
$176
This Orbitz deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Tue 5/267:01 am
GEG
- SAN
Nonstop2h 49m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$139
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:40 am
SAN
- GEG
Nonstop2h 45m
Southwest
Tue 6/22:25 pm
GEG
- SAN
1 stop7h 05m
Southwest
Deal found 4/28![Southwest logo]()
$149
This CheapOair deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:28 am
SAN
- BOI
Nonstop2h 30m
Alaska Airlines
Tue 6/26:12 pm
BOI
- SAN
Nonstop2h 23m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$187
This Expedia deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
Tue 5/2610:28 am
SAN
- BOI
Nonstop2h 30m
Multiple Airlines
Tue 6/21:25 pm
BOI
- SAN
1 stop20h 17m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$194
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/277:15 am
SAN
- BOI
1 stop4h 53m
United Airlines
Wed 6/32:05 pm
BOI
- SAN
1 stop5h 34m
United Airlines
Deal found 4/28![United Airlines logo]()
$159
This CheapOair deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Sun 5/317:01 am
GEG
- SAN
Nonstop2h 49m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$168
This Expedia deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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.
Thu 5/286:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Thu 6/47:01 am
GEG
- SAN
Nonstop2h 49m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$136
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/2812:45 pm
SAN
- GEG
1 stop4h 15m
Southwest
Thu 6/412:55 pm
GEG
- SAN
Nonstop2h 40m
Southwest
Deal found 4/28![Southwest logo]()
$146
This Expedia deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
Thu 5/286:53 pm
SAN
- GEG
Nonstop2h 52m
Multiple Airlines
Mon 6/112:33 pm
GEG
- SAN
1 stop20h 09m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$175
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/291:37 pm
SAN
- GEG
1 stop5h 06m
Delta
Sun 5/315:00 am
GEG
- SAN
1 stop7h 42m
Delta
Deal found 4/28![Delta logo]()
$159
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 April 29, 2026.
Search for one-way flight options from San Diego to Idaho. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 7/288:22 pm
SAN
- GEG
Nonstop2h 45m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$67
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:40 am
SAN
- GEG
Nonstop2h 45m
Southwest
Deal found 4/28![Southwest logo]()
$70
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 8/34:11 pm
SAN
- GEG
1 stop5h 02m
Delta
Deal found 4/28![Delta logo]()
$77
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 5/231:39 pm
SAN
- BOI
1 stop7h 01m
United Airlines
Deal found 4/25![United Airlines logo]()
$80
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2311:00 am
SAN
- GEG
1 stop5h 57m
Delta
Deal found 4/28![Delta logo]()
$80
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 7/234:11 pm
SAN
- GEG
1 stop7h 44m
Delta
Deal found 4/29![Delta logo]()
$87
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 5/266:45 pm
SAN
- GEG
1 stop4h 33m
Delta
Deal found 4/25![Delta logo]()
$94
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 6/94:03 pm
SAN
- BOI
1 stop6h 52m
Delta
Deal found 4/29![Delta logo]()
$99
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$99
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 10/257:00 am
SAN
- GEG
1 stop7h 45m
Delta
Deal found 4/27![Delta logo]()
$100
This Alaska Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 8/18:22 pm
SAN
- GEG
Nonstop2h 45m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$107
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/233:45 pm
SAN
- BOI
1 stop5h 28m
Delta
Deal found 4/26![Delta logo]()
$109
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 April 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $133 (Alaska Airlines) |
One-way from | $67 (Alaska Airlines) |
Popular in | November |
Cheapest in | February |
Average price | $329 |
Good round-trip deal | $267 or less |
Good one-way deal | $158 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 April 29, 2026.
Use the filters below to find and compare flights from San Diego to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Fri 5/29
6:53 pm-9:45 pm
Nonstop2h 52m
Spokane
Sun 5/31
7:01 am-9:50 am
Nonstop2h 49m
$139
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Thu 7/9
8:25 am-11:05 am
Nonstop2h 40m
Spokane
Tue 7/14
10:20 am-3:15 pm
1 stop4h 55m
$143
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Sat 5/23
9:40 am-12:25 pm
Nonstop2h 45m
Spokane
Tue 6/2
2:25 pm-9:30 pm
1 stop7h 05m
$149
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Fri 7/24
1:36 pm-7:15 pm
1 stop5h 39m
Spokane
Thu 7/30
9:20 am-3:12 pm
1 stop5h 52m
$153
San DiegoBoise
SAN - BOI
SANBOI
San Diego
Mon 7/13
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
$159
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Sat 5/23
6:15 am-12:01 pm
1 stop5h 46m
Spokane
Sat 5/30
4:59 pm-9:55 pm
1 stop4h 56m
$159
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Fri 6/5
8:25 am-11:05 am
Nonstop2h 40m
Spokane
Sun 6/7
6:40 pm-11:15 pm
1 stop4h 35m
$183
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Sat 6/13
9:47 am-4:10 pm
1 stop6h 23m
Spokane
Tue 6/23
1:19 pm-6:08 pm
1 stop4h 49m
$206
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Thu 7/9
4:11 pm-11:55 pm
1 stop7h 44m
Spokane
Sun 7/12
7:08 pm-11:50 pm
1 stop4h 42m
$206
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Sat 5/16
9:40 am-12:25 pm
Nonstop2h 45m
Spokane
Sun 5/24
11:20 am-4:15 pm
1 stop4h 55m
$209
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from San Diego to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from San Diego with our price prediction graph.
SAN-GEG
SAN-BOI
SAN-IDA
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-GEG
SAN-BOI
SAN-IDA
SAN-SUN
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.
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 $80). Flying from San Diego to Idaho in July is currently the most expensive (average of $197). 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 April 29, 2026.
It’s optimal to fly from San Diego to Idaho at noon. By choosing this option you can save up to 27% 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 April 29, 2026.
The most flights from SAN to USID are scheduled on a Monday (5 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from San Diego to Idaho?
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated April 29, 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.
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Related info for your journey
Find useful and relevant information for your journey from San Diego to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
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 April 29, 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 April 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$144 | Average$404 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$155 | Average$257 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$157 | Average$278 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$157 | Average$330 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$158 | Average$422 | FlexibilityNo cancel fee | On-time69% |