$86+ Cheap flights from San Francisco (SFO) 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BOI
Aug 28 — Sep 41
Round-trip
1 adult, Economy
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Cheapest flights from San Francisco to IdahoExplore the most affordable flight options available from San Francisco to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.
Explore the most affordable flight options available from San Francisco to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:24 pm
SFO
- IDA
1 stop12h 40m
Multiple Airlines
Mon 9/216:21 pm
IDA
- SFO
1 stop14h 53m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:38 pm
SFO
- IDA
1 stop18h 09m
Multiple Airlines
Mon 8/245:33 pm
IDA
- SFO
1 stop27h 23m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$206
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 9/237:23 am
SFO
- BOI
1 stop4h 51m
Alaska Airlines
Tue 9/298:03 am
BOI
- SFO
1 stop7h 24m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$207
This Jettzy deal was found by Cheapflights users on 7/24. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:23 am
SFO
- BOI
1 stop4h 51m
Alaska Airlines
Tue 9/1510:14 am
BOI
- SFO
Nonstop1h 56m
Alaska Airlines
Deal found 7/24![Alaska Airlines logo]()
$208
This CheapOair deal was found by Cheapflights users on 7/27. 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.
Wed 8/196:00 am
SFO
- BOI
1 stop28h 29m
Frontier
Tue 8/251:24 pm
BOI
- SFO
1 stop23h 10m
Frontier
Deal found 7/27![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:35 pm
SFO
- BOI
1 stop16h 54m
Multiple Airlines
Wed 9/210:14 am
BOI
- SFO
Nonstop1h 56m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$211
This Alaska Airlines deal was found by Cheapflights users on 7/26. 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.
Sat 9/57:46 pm
SFO
- BOI
Nonstop1h 41m
Alaska Airlines
Sun 9/610:14 am
BOI
- SFO
Nonstop1h 56m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:24 pm
SFO
- BOI
1 stop14h 31m
Frontier
Thu 9/172:50 pm
BOI
- SFO
1 stop23h 29m
Frontier
Deal found 7/27![Frontier logo]()
$213
This Priceline deal was found by Cheapflights users on 7/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am
SFO
- BOI
1 stop5h 29m
Multiple Airlines
Wed 9/26:49 pm
BOI
- SFO
1 stop5h 23m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$214
This Trip.com deal was found by Cheapflights users on 7/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:46 pm
SFO
- BOI
Nonstop1h 41m
Alaska Airlines
Mon 9/146:49 pm
BOI
- SFO
1 stop5h 23m
Alaska Airlines
Deal found 7/24![Alaska Airlines logo]()
$216
This Jettzy deal was found by Cheapflights users on 7/27. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:41 pm
SFO
- BOI
1 stop6h 19m
Alaska Airlines
Thu 9/1710:14 am
BOI
- SFO
Nonstop1h 56m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$218
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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.
Tue 9/227:46 pm
SFO
- BOI
Nonstop1h 41m
Alaska Airlines
Mon 9/281:31 pm
BOI
- SFO
1 stop4h 06m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$222
Best flights from San Francisco to IdahoDiscover carefully curated flight deals from San Francisco to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2026.
Discover carefully curated flight deals from San Francisco to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 9/57:46 pm
SFO
- BOI
Nonstop1h 41m
Alaska Airlines
Sun 9/66:00 am
BOI
- SFO
1 stop4h 07m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$207
This Southwest deal was found by Cheapflights users on 7/28. 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 8/283:20 pm
SFO
- BOI
1 stop6h 15m
Southwest
Mon 8/3110:50 am
BOI
- SFO
2 stops6h 40m
Southwest
Deal found 7/28![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 7/24. 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.
Sun 8/237:25 pm
SFO
- BOI
1 stop3h 34m
Delta
Sat 8/2910:58 am
BOI
- SFO
1 stop6h 18m
Delta
Deal found 7/24![Delta logo]()
$242
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Thu 9/178:12 am
SFO
- GEG
Nonstop2h 18m
United Airlines
Sun 9/206:00 am
GEG
- SFO
Nonstop2h 30m
United Airlines
Deal found 7/24![United Airlines logo]()
$247
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Mon 8/317:46 pm
SFO
- BOI
Nonstop1h 41m
Alaska Airlines
Wed 9/28:03 am
BOI
- SFO
1 stop7h 24m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$207
This Southwest deal was found by Cheapflights users on 7/25. 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.
Sat 8/295:00 am
SFO
- BOI
1 stop6h 15m
Southwest
Sun 8/306:00 am
BOI
- SFO
1 stop5h 15m
Southwest
Deal found 7/25![Southwest logo]()
$232
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Thu 9/177:00 am
SFO
- BOI
1 stop4h 35m
Alaska Airlines
Sun 9/2010:14 am
BOI
- SFO
Nonstop1h 56m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 7/27. 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.
Sat 9/196:23 am
SFO
- GEG
1 stop5h 57m
Delta
Sun 9/205:10 am
GEG
- SFO
1 stop4h 24m
Delta
Deal found 7/27![Delta logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 9/186:00 am
SFO
- BOI
1 stop5h 35m
Alaska Airlines
Mon 9/2110:14 am
BOI
- SFO
Nonstop1h 56m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 7/25. 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.
Fri 10/24:00 pm
SFO
- BOI
2 stops8h 00m
Southwest
Sun 10/45:50 am
BOI
- SFO
1 stop5h 30m
Southwest
Deal found 7/25![Southwest logo]()
$242
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Mon 10/124:51 pm
SFO
- BOI
1 stop5h 06m
Alaska Airlines
Tue 10/136:04 pm
BOI
- SFO
1 stop4h 45m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$222
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Sat 9/54:30 pm
SFO
- GEG
Nonstop2h 21m
United Airlines
Sun 9/66:00 am
GEG
- SFO
Nonstop2h 30m
United Airlines
Deal found 7/27![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 7/26. 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.
Sun 8/165:50 am
SFO
- WYS
1 stop5h 37m
Delta
Tue 8/251:09 pm
WYS
- SFO
1 stop4h 04m
Delta
Deal found 7/26![Delta logo]()
$304
This Southwest deal was found by Cheapflights users on 7/24. 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.
Sat 9/192:05 pm
SFO
- GEG
1 stop7h 25m
Southwest
Mon 9/211:10 pm
GEG
- SFO
2 stops7h 25m
Southwest
Deal found 7/24![Southwest logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 7/24. 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 9/255:37 pm
SFO
- BOI
1 stop4h 23m
Alaska Airlines
Sun 9/278:25 pm
BOI
- SFO
1 stop4h 03m
Alaska Airlines
Deal found 7/24![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 7/27. 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 9/95:45 am
SFO
- WYS
1 stop4h 02m
Delta
Fri 9/1811:29 am
WYS
- SFO
2 stops9h 07m
Delta
Deal found 7/27![Delta logo]()
$314
This Southwest deal was found by Cheapflights users on 7/27. 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.
Sat 9/52:05 pm
SFO
- GEG
1 stop7h 25m
Southwest
Sun 9/66:15 am
GEG
- SFO
2 stops7h 55m
Southwest
Deal found 7/27![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Fri 8/218:15 pm
SFO
- GEG
Nonstop2h 21m
United Airlines
Sun 8/236:00 am
GEG
- SFO
Nonstop2h 30m
United Airlines
Deal found 7/25![United Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 7/26. 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.
Wed 9/95:19 pm
SFO
- IDA
1 stop4h 03m
Delta
Wed 9/166:00 am
IDA
- SFO
1 stop4h 00m
Delta
Deal found 7/26![Delta logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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.
Sun 8/3011:12 am
SFO
- GEG
Nonstop2h 10m
Alaska Airlines
Tue 9/12:02 pm
GEG
- SFO
Nonstop2h 17m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$282
This Delta deal was found by Cheapflights users on 7/28. 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.
Wed 8/192:36 pm
SFO
- IDA
2 stops6h 56m
Delta
Tue 8/256:00 am
IDA
- SFO
1 stop3h 50m
Delta
Deal found 7/28![Delta logo]()
$326
This Southwest deal was found by Cheapflights users on 7/24. 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 9/173:00 pm
SFO
- GEG
2 stops7h 15m
Southwest
Sun 9/2012:05 pm
GEG
- SFO
1 stop7h 50m
Southwest
Deal found 7/24![Southwest logo]()
$337
This Delta deal was found by Cheapflights users on 7/28. 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 8/275:50 am
SFO
- TWF
1 stop3h 57m
Delta
Sat 8/296:16 am
TWF
- SFO
2 stops8h 10m
Delta
Deal found 7/28![Delta logo]()
$327
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/231:26 pm
SFO
- JAC
Nonstop2h 13m
United Airlines
Sat 9/268:00 am
JAC
- SFO
1 stop5h 30m
United Airlines
Deal found 7/28![United Airlines logo]()
$447
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 8/1212:29 pm
SFO
- GEG
Nonstop2h 07m
Alaska Airlines
Wed 9/237:00 am
GEG
- SFO
1 stop8h 21m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$312
This Delta deal was found by Cheapflights users on 7/24. 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 8/295:50 am
SFO
- TWF
1 stop5h 33m
Delta
Sun 8/3011:37 am
TWF
- SFO
1 stop5h 36m
Delta
Deal found 7/24![Delta logo]()
$331
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 8/2911:12 am
SFO
- GEG
Nonstop2h 10m
Alaska Airlines
Tue 9/17:03 am
GEG
- SFO
1 stop5h 57m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$312
This Delta deal was found by Cheapflights users on 7/28. 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.
Tue 8/1811:54 am
SFO
- IDA
2 stops9h 38m
Delta
Tue 8/253:17 pm
IDA
- SFO
2 stops7h 58m
Delta
Deal found 7/28![Delta logo]()
$331
This United Airlines deal was found by Cheapflights users on 7/25. 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 9/51:26 pm
SFO
- JAC
Nonstop2h 13m
United Airlines
Wed 9/99:28 am
JAC
- SFO
Nonstop2h 29m
United Airlines
Deal found 7/25![United Airlines logo]()
$513
This Delta deal was found by Cheapflights users on 7/28. 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.
Tue 8/1811:54 am
SFO
- IDA
2 stops9h 38m
Delta
Mon 8/243:17 pm
IDA
- SFO
2 stops7h 02m
Delta
Deal found 7/28![Delta logo]()
$331
Last-minute flights from San Francisco to IdahoDiscover last-minute flight deals from San Francisco to Idaho. Data last updated July 29, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Idaho. Data last updated July 29, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 7/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
SFO
- BOI
1 stop5h 29m
Frontier
Thu 8/2012:24 pm
BOI
- SFO
1 stop7h 21m
Frontier
Deal found 7/27![Frontier logo]()
$224
This CheapOair deal was found by Cheapflights users on 7/27. 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.
Wed 8/196:00 am
SFO
- BOI
1 stop28h 29m
Frontier
Tue 8/251:24 pm
BOI
- SFO
1 stop23h 10m
Frontier
Deal found 7/27![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:35 pm
SFO
- BOI
1 stop16h 54m
Multiple Airlines
Wed 8/2610:14 am
BOI
- SFO
Nonstop1h 56m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:38 pm
SFO
- IDA
1 stop18h 09m
Multiple Airlines
Mon 8/245:33 pm
IDA
- SFO
1 stop27h 23m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$206
This Trip.com deal was found by Cheapflights users on 7/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/253:51 pm
SFO
- GEG
1 stop6h 47m
Alaska Airlines
Tue 9/17:03 am
GEG
- SFO
1 stop27h 50m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$223
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 8/264:30 pm
SFO
- BOI
Nonstop1h 54m
United Airlines
Wed 9/27:05 pm
BOI
- SFO
Nonstop1h 53m
United Airlines
Deal found 7/27![United Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:35 pm
SFO
- BOI
1 stop16h 54m
Multiple Airlines
Wed 9/210:14 am
BOI
- SFO
Nonstop1h 56m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$211
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Thu 8/278:15 am
SFO
- BOI
Nonstop1h 51m
United Airlines
Sat 9/126:15 am
BOI
- SFO
Nonstop2h 03m
United Airlines
Deal found 7/27![United Airlines logo]()
$212
This Expedia deal was found by Cheapflights users on 7/27. 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 8/277:46 pm
SFO
- BOI
Nonstop1h 41m
Alaska Airlines
Thu 9/310:49 am
BOI
- SFO
1 stop5h 59m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$227
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Fri 8/2812:45 pm
SFO
- BOI
Nonstop1h 46m
United Airlines
Mon 8/3111:52 am
BOI
- SFO
Nonstop2h 01m
United Airlines
Deal found 7/24![United Airlines logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 8/285:16 pm
SFO
- BOI
1 stop26h 04m
Alaska Airlines
Sun 8/3010:14 am
BOI
- SFO
Nonstop1h 56m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$225
This Delta deal was found by Cheapflights users on 7/28. 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 8/2910:36 am
SFO
- GEG
1 stop6h 24m
Delta
Mon 8/315:40 pm
GEG
- SFO
1 stop6h 10m
Delta
Deal found 7/28![Delta logo]()
$227
One-way flights from San Francisco to IdahoSearch for one-way flight options from San Francisco to Idaho. Find affordable one-way fares based on user searches. Data last updated July 29, 2026.
Search for one-way flight options from San Francisco to Idaho. Find affordable one-way fares based on user searches. Data last updated July 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/163:15 pm
SFO
- BOI
1 stop21h 40m
Frontier
Deal found 7/29![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:15 pm
SFO
- BOI
1 stop21h 40m
Frontier
Deal found 7/26![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:22 am
SFO
- BOI
1 stop7h 35m
Frontier
Deal found 7/27![Frontier logo]()
$91
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/3010:15 am
SFO
- BOI
Nonstop1h 48m
United Airlines
Deal found 7/28![United Airlines logo]()
$94
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/308:15 am
SFO
- BOI
Nonstop1h 51m
United Airlines
Deal found 7/28![United Airlines logo]()
$99
This Expedia deal was found by Cheapflights users on 7/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:00 am
SFO
- BOI
1 stop5h 29m
Frontier
Deal found 7/26![Frontier logo]()
$100
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Wed 9/96:37 pm
SFO
- BOI
Nonstop1h 54m
United Airlines
Deal found 7/26![United Airlines logo]()
$104
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/268:15 pm
SFO
- GEG
Nonstop2h 21m
United Airlines
Deal found 7/28![United Airlines logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:20 am
SFO
- GEG
1 stop22h 02m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:24 pm
SFO
- BOI
1 stop14h 31m
Frontier
Deal found 7/26![Frontier logo]()
$107
This Southwest deal was found by Cheapflights users on 7/28. 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.
Sun 8/306:00 am
SFO
- BOI
1 stop6h 55m
Southwest
Deal found 7/28![Southwest logo]()
$109
This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
SFO
- BOI
1 stop28h 29m
Frontier
Deal found 7/28![Frontier logo]()
$111
Find flight deals from San Francisco to Idaho
Keep the following information in mind while searching for San Francisco to Idaho flight deals. Data was last updated July 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $195 (Kiwi.com) |
One-way from | $86 (Kiwi.com) |
Popular in | May |
Cheapest in | November |
Average price | $397 |
Good round-trip deal | $230 or less |
Good one-way deal | $158 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco 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 July 29, 2026.
Use the filters below to find and compare flights from San Francisco to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoBoise
SFO - BOI
SFOBOI
San Francisco
Sat 9/5
7:46 pm-10:27 pm
Nonstop1h 41m
Boise Air Term. Gowen Fld
Sun 9/6
6:00 am-9:07 am
1 stop4h 07m
$207
San FranciscoBoise
SFO - BOI
SFOBOI
San Francisco
Mon 8/31
7:46 pm-10:27 pm
Nonstop1h 41m
Boise Air Term. Gowen Fld
Wed 9/2
8:03 am-2:27 pm
1 stop7h 24m
$207
San FranciscoBoise
SFO - BOI
SFOBOI
San Francisco
Thu 9/17
7:00 am-12:35 pm
1 stop4h 35m
Boise Air Term. Gowen Fld
Sun 9/20
10:14 am-11:10 am
Nonstop1h 56m
$217
San FranciscoBoise
SFO - BOI
SFOBOI
San Francisco
Fri 9/18
6:00 am-12:35 pm
1 stop5h 35m
Boise Air Term. Gowen Fld
Mon 9/21
10:14 am-11:10 am
Nonstop1h 56m
$217
San FranciscoBoise
SFO - BOI
SFOBOI
San Francisco
Fri 8/28
3:20 pm-10:35 pm
1 stop6h 15m
Boise Air Term. Gowen Fld
Mon 8/31
10:50 am-4:30 pm
2 stops6h 40m
$222
San FranciscoBoise
SFO - BOI
SFOBOI
San Francisco
Mon 10/12
4:51 pm-10:57 pm
1 stop5h 06m
Boise Air Term. Gowen Fld
Tue 10/13
6:04 pm-9:49 pm
1 stop4h 45m
$222
San FranciscoBoise
SFO - BOI
SFOBOI
San Francisco
Sat 8/29
5:00 am-12:15 pm
1 stop6h 15m
Boise Air Term. Gowen Fld
Sun 8/30
6:00 am-10:15 am
1 stop5h 15m
$232
San FranciscoBoise
SFO - BOI
SFOBOI
San Francisco
Fri 9/25
5:37 pm-11:00 pm
1 stop4h 23m
Boise Air Term. Gowen Fld
Sun 9/27
8:25 pm-11:28 pm
1 stop4h 03m
$237
San FranciscoBoise
SFO - BOI
SFOBOI
San Francisco
Sun 8/23
7:25 pm-11:59 pm
1 stop3h 34m
Boise Air Term. Gowen Fld
Sat 8/29
10:58 am-4:16 pm
1 stop6h 18m
$242
San FranciscoBoise
SFO - BOI
SFOBOI
San Francisco
Fri 10/2
4:00 pm-1:00 am
2 stops8h 00m
Boise Air Term. Gowen Fld
Sun 10/4
5:50 am-10:20 am
1 stop5h 30m
$242
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from San Francisco to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from San Francisco with our price prediction graph.
SFO-BOI
SFO-GEG
SFO-IDA
SFO-WYS
SFO-TWF
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 Francisco to Idaho
SFO-USID
SFO-BOI
SFO-GEG
SFO-IDA
SFO-WYS
What is the cheapest month to book a flight from San Francisco to Idaho?
Currently, November is the cheapest month in which you can book a flight from San Francisco to Idaho (average of $240). Flying from San Francisco to Idaho in July is currently the most expensive (average of $448). 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 SFO to ID?
Find hourly flight availability from San Francisco 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 July 29, 2026.
One of the essential ways to save on airfare from San Francisco to Idaho is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 28% on airfare.
Weekly flight availability from San Francisco to Idaho
Explore weekly flight availability from San Francisco 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 July 29, 2026.
The most flights from SFO to USID are scheduled on a Tuesday (18 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).
How much does it cost to fly round-trip from San Francisco to Idaho?
Airfare is below average for this route at the moment.
San Francisco to Idaho flights typically cost between $223 and $347 in September.The cheapest round-trip price found within the last 5 days was $207 on Alaska Airlines (Sep 23-Sep 29).
How far ahead should I book a flight from San Francisco to Idaho?
Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco 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 day to fly from San Francisco to Idaho?
Use this chart to determine the cheapest time to fly round-trip from San Francisco to Idaho. Price data was last updated on July 25, 2026.
Travelers seeking maximum savings on their San Francisco to Idaho flight should consider departing on Saturday mornings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 July 29, 2026.
Read through reviews of airlines operating flights from San Francisco to Idaho, such as Alaska Airlines,Delta, andHawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Crew
8.5
Overall
7.9
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Food
7.0
Boarding
8.1
Crew
8.5
Overall
7.9
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Food
7.0
Boarding
8.1
Crew
8.5
Overall
7.9
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Food
7.0
Boarding
8.1
Crew
8.5
Overall
7.9
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Food
7.0
Boarding
8.1
Crew
8.5
Overall
7.9
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
Find useful and relevant information for your journey from San Francisco 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 Francisco 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 Francisco to Idaho by cabin class
Find flights from San Francisco to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Francisco and Idaho flights
Browse other San Francisco and Idaho flight options. Last updated on July 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
San Francisco to Idaho flights
Consider these flights traveling from San Francisco to Idaho.
Top 4 airlines flying from San Francisco to Idaho
Discover the top 4 airlines that operate flights from San Francisco 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 July 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$117 | Average$215 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$137 | Average$361 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$144 | Average$451 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$228 | Average$492 | FlexibilityNo cancel fee | On-timeN/A |