$146+ Cheap flights from Idaho to San Antonio (SAT)
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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAT
Jul 10 — Jul 171
Round-trip
1 adult, Economy
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Cheapest flights from Idaho to San AntonioExplore the most affordable flight options available from Idaho to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.
Explore the most affordable flight options available from Idaho to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:40 pm
BOI
- SAT
1 stop5h 17m
United Airlines
Tue 9/159:22 am
SAT
- BOI
1 stop7h 09m
United Airlines
Deal found 6/8![United Airlines logo]()
$219
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:40 pm
BOI
- SAT
1 stop4h 46m
Delta
Sat 9/267:30 am
SAT
- BOI
1 stop8h 14m
Delta
Deal found 6/9![Delta logo]()
$240
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/242:44 pm
BOI
- SAT
2 stops7h 07m
United Airlines
Tue 10/274:45 pm
SAT
- BOI
1 stop5h 31m
United Airlines
Deal found 6/8![United Airlines logo]()
$245
This Alaska Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:47 pm
BOI
- SAT
1 stop7h 13m
Alaska Airlines
Wed 8/57:02 am
SAT
- BOI
1 stop9h 24m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$255
This Alaska Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:47 pm
BOI
- SAT
1 stop7h 13m
Alaska Airlines
Thu 8/64:44 pm
SAT
- BOI
1 stop8h 20m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$262
This CheapOair deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 7/141:24 pm
BOI
- SAT
1 stop28h 20m
Frontier
Wed 7/227:39 pm
SAT
- BOI
1 stop17h 50m
Frontier
Deal found 6/7![Frontier logo]()
$280
This Alaska Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:47 pm
BOI
- SAT
1 stop7h 13m
Alaska Airlines
Fri 8/74:44 pm
SAT
- BOI
1 stop8h 20m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$283
This Alaska Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:02 am
GEG
- SAT
1 stop8h 23m
Alaska Airlines
Wed 11/45:21 pm
SAT
- GEG
1 stop7h 35m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$283
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:45 pm
BOI
- SAT
1 stop6h 00m
Delta
Mon 10/194:10 pm
SAT
- BOI
1 stop7h 58m
Delta
Deal found 6/8![Delta logo]()
$285
This Alaska Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:45 pm
GEG
- SAT
1 stop7h 15m
Alaska Airlines
Thu 8/64:44 pm
SAT
- GEG
1 stop9h 15m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$288
This American Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:21 pm
BOI
- SAT
1 stop7h 36m
American Airlines
Wed 10/285:00 am
SAT
- BOI
1 stop7h 26m
American Airlines
Deal found 6/9![American Airlines logo]()
$291
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:15 am
GEG
- SAT
1 stop6h 35m
Southwest
Sat 9/1212:55 pm
SAT
- GEG
2 stops10h 00m
Southwest
Deal found 6/8![Southwest logo]()
$294
Best flights from Idaho to San AntonioDiscover carefully curated flight deals from Idaho to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.
Discover carefully curated flight deals from Idaho to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:03 am
GEG
- SAT
1 stop7h 10m
Alaska Airlines
Wed 8/265:11 pm
SAT
- GEG
1 stop8h 48m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 7/307:00 pm
IDA
- SAT
1 stop4h 26m
Delta
Sun 8/26:30 am
SAT
- IDA
1 stop5h 13m
Delta
Deal found 6/7![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:46 pm
BOI
- SAT
1 stop5h 09m
United Airlines
Tue 7/284:35 pm
SAT
- BOI
1 stop5h 54m
United Airlines
Deal found 6/7![United Airlines logo]()
$333
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:00 pm
GEG
- SAT
1 stop5h 45m
Southwest
Tue 8/46:40 pm
SAT
- GEG
1 stop6h 15m
Southwest
Deal found 6/8![Southwest logo]()
$369
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:42 pm
BOI
- SAT
1 stop4h 44m
Delta
Wed 7/226:03 pm
SAT
- BOI
1 stop7h 02m
Delta
Deal found 6/8![Delta logo]()
$333
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2410:35 am
BOI
- SAT
2 stops11h 16m
United Airlines
Tue 10/274:45 pm
SAT
- BOI
1 stop5h 31m
United Airlines
Deal found 6/9![United Airlines logo]()
$335
This Alaska Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:40 am
BOI
- SAT
1 stop8h 33m
Alaska Airlines
Tue 10/275:09 pm
SAT
- BOI
1 stop7h 49m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$353
This Southwest deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 8/117:30 am
GEG
- SAT
2 stops8h 25m
Southwest
Sat 8/155:50 am
SAT
- GEG
2 stops9h 10m
Southwest
Deal found 6/7![Southwest logo]()
$369
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/167:00 pm
IDA
- SAT
1 stop4h 26m
Delta
Mon 7/206:03 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 6/5![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:47 pm
BOI
- SAT
1 stop7h 13m
Alaska Airlines
Thu 8/64:44 pm
SAT
- BOI
1 stop8h 20m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 8/1710:50 am
BOI
- SAT
2 stops10h 25m
Southwest
Mon 8/242:45 pm
SAT
- BOI
2 stops9h 05m
Southwest
Deal found 6/7![Southwest logo]()
$373
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/254:23 pm
JAC
- SAT
1 stop6h 32m
United Airlines
Mon 6/294:35 pm
SAT
- JAC
1 stop5h 23m
United Airlines
Deal found 6/9![United Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/306:00 am
IDA
- SAT
2 stops7h 53m
Delta
Sun 9/136:05 pm
SAT
- IDA
1 stop5h 09m
Delta
Deal found 6/5![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:43 pm
BOI
- SAT
2 stops7h 05m
United Airlines
Wed 11/1112:24 pm
SAT
- BOI
2 stops9h 52m
United Airlines
Deal found 6/8![United Airlines logo]()
$397
This Booking.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/101:26 pm
GEG
- SAT
1 stop13h 34m
Alaska Airlines
Mon 8/177:02 am
SAT
- GEG
1 stop7h 27m
Alaska Airlines
Deal found 6/5![Alaska Airlines logo]()
$425
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/106:30 am
GEG
- SAT
2 stops10h 00m
Southwest
Mon 8/176:20 pm
SAT
- GEG
1 stop5h 40m
Southwest
Deal found 6/5![Southwest logo]()
$430
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/243:25 pm
IDA
- SAT
1 stop7h 51m
Delta
Sun 6/286:30 am
SAT
- IDA
1 stop5h 13m
Delta
Deal found 6/9![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/242:30 pm
IDA
- SAT
2 stops7h 12m
United Airlines
Sun 6/285:30 am
SAT
- IDA
1 stop5h 20m
United Airlines
Deal found 6/9![United Airlines logo]()
$404
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:25 pm
BOI
- SAT
2 stops9h 00m
Southwest
Mon 10/194:40 pm
SAT
- BOI
2 stops10h 05m
Southwest
Deal found 6/5![Southwest logo]()
$433
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:00 pm
IDA
- SAT
1 stop4h 26m
Delta
Fri 9/186:02 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 6/5![Delta logo]()
$404
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 9/215:40 pm
BOI
- SAT
1 stop5h 17m
United Airlines
Sat 9/261:12 pm
SAT
- BOI
2 stops9h 27m
United Airlines
Deal found 6/7![United Airlines logo]()
$405
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/32:15 pm
GEG
- SAT
1 stop6h 50m
Southwest
Thu 7/238:35 pm
SAT
- GEG
1 stop6h 00m
Southwest
Deal found 6/5![Southwest logo]()
$434
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 8/46:00 am
GEG
- SAT
1 stop6h 53m
Delta
Thu 8/66:04 pm
SAT
- GEG
1 stop7h 05m
Delta
Deal found 6/6![Delta logo]()
$408
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 10/315:45 pm
BOI
- SAT
1 stop6h 00m
Delta
Thu 11/512:25 pm
SAT
- BOI
2 stops12h 27m
Delta
Deal found 6/7![Delta logo]()
$418
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/41:45 pm
JAC
- SAT
1 stop6h 07m
United Airlines
Tue 9/84:45 pm
SAT
- JAC
1 stop4h 55m
United Airlines
Deal found 6/9![United Airlines logo]()
$465
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 10/1810:38 am
BOI
- SAT
2 stops11h 40m
Delta
Sat 10/248:00 am
SAT
- BOI
2 stops11h 33m
Delta
Deal found 6/7![Delta logo]()
$433
This Alaska Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/27:43 pm
SUN
- SAT
1 stop8h 17m
Alaska Airlines
Sun 8/94:44 pm
SAT
- SUN
1 stop27h 17m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$647
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 7/312:35 pm
GEG
- SAT
1 stop6h 57m
Delta
Thu 7/236:05 pm
SAT
- GEG
1 stop7h 01m
Delta
Deal found 6/7![Delta logo]()
$434
This Alaska Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/310:20 am
SUN
- SAT
2 stops12h 38m
Alaska Airlines
Sun 8/96:15 am
SAT
- SUN
2 stops13h 46m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$648
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/32:38 pm
SUN
- SAT
1 stop8h 17m
United Airlines
Sat 8/84:35 pm
SAT
- SUN
1 stop5h 51m
United Airlines
Deal found 6/9![United Airlines logo]()
$554
Last-minute flights from Idaho to San AntonioDiscover last-minute flight deals from Idaho to San Antonio. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to San Antonio. Data last updated June 10, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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.
Thu 6/251:25 pm
BOI
- SAT
1 stop28h 31m
Frontier
Wed 7/17:51 pm
SAT
- BOI
1 stop17h 39m
Frontier
Deal found 6/6![Frontier logo]()
$310
This Booking.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/301:25 pm
BOI
- SAT
1 stop28h 31m
Frontier
Sat 7/47:51 pm
SAT
- BOI
1 stop17h 38m
Frontier
Deal found 6/6![Frontier logo]()
$296
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 7/15:59 pm
BOI
- SAT
1 stop5h 17m
Delta
Tue 7/76:03 pm
SAT
- BOI
1 stop7h 02m
Delta
Deal found 6/7![Delta logo]()
$368
This CheapOair deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 7/141:24 pm
BOI
- SAT
1 stop28h 20m
Frontier
Wed 7/227:39 pm
SAT
- BOI
1 stop17h 50m
Frontier
Deal found 6/7![Frontier logo]()
$280
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:42 pm
BOI
- SAT
1 stop4h 44m
Delta
Wed 7/226:03 pm
SAT
- BOI
1 stop7h 02m
Delta
Deal found 6/8![Delta logo]()
$333
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:46 pm
BOI
- SAT
1 stop5h 09m
United Airlines
Tue 7/211:39 pm
SAT
- BOI
2 stops9h 26m
United Airlines
Deal found 6/7![United Airlines logo]()
$355
This Delta deal was found by Cheapflights users on 6/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:00 am
IDA
- SAT
1 stop6h 36m
Delta
Mon 7/206:03 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 6/4![Delta logo]()
$349
This Booking.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/161:24 pm
BOI
- SAT
1 stop28h 20m
Multiple Airlines
Tue 7/217:02 am
SAT
- BOI
1 stop9h 24m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$372
This Booking.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:47 pm
BOI
- SAT
1 stop7h 13m
Multiple Airlines
Sat 7/257:39 pm
SAT
- BOI
1 stop17h 50m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$330
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:46 pm
BOI
- SAT
1 stop5h 09m
United Airlines
Tue 7/281:39 pm
SAT
- BOI
2 stops9h 26m
United Airlines
Deal found 6/7![United Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:00 pm
GEG
- SAT
1 stop5h 45m
Southwest
Tue 8/46:40 pm
SAT
- GEG
1 stop6h 15m
Southwest
Deal found 6/8![Southwest logo]()
$369
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:00 pm
IDA
- SAT
1 stop4h 26m
Delta
Sun 8/26:30 am
SAT
- IDA
1 stop5h 13m
Delta
Deal found 6/8![Delta logo]()
$329
One-way flights from Idaho to San AntonioSearch for one-way flight options from Idaho to San Antonio. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
Search for one-way flight options from Idaho to San Antonio. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
This CheapOair deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/301:25 pm
BOI
- SAT
1 stop28h 31m
Frontier
Deal found 6/9![Frontier logo]()
$146
This Priceline deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:45 pm
GEG
- SAT
1 stop7h 15m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$158
This Alaska Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:18 am
IDA
- SAT
1 stop8h 55m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$165
This CheapOair deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/21:24 pm
BOI
- SAT
1 stop28h 20m
Frontier
Deal found 6/9![Frontier logo]()
$166
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/32:55 pm
BOI
- SAT
1 stop5h 30m
Southwest
Deal found 6/8![Southwest logo]()
$182
This CheapOair deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/251:25 pm
BOI
- SAT
1 stop28h 31m
Frontier
Deal found 6/9![Frontier logo]()
$186
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:20 pm
GEG
- SAT
1 stop9h 35m
Southwest
Deal found 6/8![Southwest logo]()
$191
This Alaska Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:45 pm
GEG
- SAT
1 stop7h 15m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 8/1911:46 am
IDA
- SAT
2 stops30h 10m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/169:14 pm
GEG
- SAT
1 stop21h 23m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$200
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:18 pm
GEG
- SAT
1 stop5h 37m
United Airlines
Deal found 6/5![United Airlines logo]()
$201
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:42 pm
BOI
- SAT
1 stop4h 44m
Delta
Deal found 6/7![Delta logo]()
$204
Find flight deals from Idaho to San Antonio
Keep the following information in mind while searching for Idaho to San Antonio flight deals. Data was last updated June 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $219 (United Airlines) |
One-way from | $146 (CheapOair) |
Popular in | March |
Cheapest in | January |
Average price | $488 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 10, 2026.
Use the filters below to find and compare flights from Idaho to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SpokaneSan Antonio
GEG - SAT
GEGSAT
Spokane
Tue 8/25
7:03 am-4:13 pm
1 stop7h 10m
San Antonio
Wed 8/26
5:11 pm-11:59 pm
1 stop8h 48m
$305
Quickest round-trip
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Thu 7/30
7:00 pm-12:26 am
1 stop4h 26m
San Antonio
Sun 8/2
6:30 am-10:43 am
1 stop5h 13m
$329
BoiseSan Antonio
BOI - SAT
BOISAT
Boise Air Term. Gowen Fld
Wed 7/22
5:46 pm-11:55 pm
1 stop5h 09m
San Antonio
Tue 7/28
4:35 pm-9:29 pm
1 stop5h 54m
$333
BoiseSan Antonio
BOI - SAT
BOISAT
Boise Air Term. Gowen Fld
Tue 7/14
6:42 pm-12:26 am
1 stop4h 44m
San Antonio
Wed 7/22
6:03 pm-12:05 am
1 stop7h 02m
$333
BoiseSan Antonio
BOI - SAT
BOISAT
Boise Air Term. Gowen Fld
Sat 10/24
10:35 am-10:51 pm
2 stops11h 16m
San Antonio
Tue 10/27
4:45 pm-9:16 pm
1 stop5h 31m
$335
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Thu 7/16
7:00 pm-12:26 am
1 stop4h 26m
San Antonio
Mon 7/20
6:03 pm-10:32 pm
1 stop5h 29m
$349
BoiseSan Antonio
BOI - SAT
BOISAT
Boise Air Term. Gowen Fld
Sat 10/24
6:40 am-4:13 pm
1 stop8h 33m
San Antonio
Tue 10/27
5:09 pm-11:58 pm
1 stop7h 49m
$353
BoiseSan Antonio
BOI - SAT
BOISAT
Boise Air Term. Gowen Fld
Mon 8/3
8:47 pm-5:00 am
1 stop7h 13m
San Antonio
Thu 8/6
4:44 pm-12:04 am
1 stop8h 20m
$365
SpokaneSan Antonio
GEG - SAT
GEGSAT
Spokane
Sun 7/26
6:00 pm-1:45 am
1 stop5h 45m
San Antonio
Tue 8/4
6:40 pm-10:55 pm
1 stop6h 15m
$369
SpokaneSan Antonio
GEG - SAT
GEGSAT
Spokane
Tue 8/11
7:30 am-5:55 pm
2 stops8h 25m
San Antonio
Sat 8/15
5:50 am-1:00 pm
2 stops9h 10m
$369
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Idaho to San Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Idaho with our price prediction graph.
BOI-SAT
IDA-SAT
GEG-SAT
JAC-SAT
LWS-SAT
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 Idaho to San Antonio
USID-SAT
BOI-SAT
IDA-SAT
GEG-SAT
JAC-SAT
What is the cheapest month to book a flight from Idaho to San Antonio?
Currently, September is the cheapest month in which you can book a flight from Idaho to San Antonio (average of $97). Flying from Idaho to San Antonio in June is currently the most expensive (average of $369). 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.
How much does it cost to fly round-trip from Idaho to San Antonio?
How far ahead should I book a flight from Idaho to San Antonio?
Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Idaho to San Antonio. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Related info for your journey
Find useful and relevant information for your journey from Idaho to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
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.
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Alternative routes for Idaho to San Antonio
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Complete your trip
Complete your trip to San Antonio by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho to San Antonio by cabin class
Find flights from Idaho to San Antonio, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and San Antonio flights
Browse other Idaho and San Antonio flight options. Last updated on June 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Antonio
Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 10, 2026.
Idaho to San Antonio flights
Consider these flights traveling from Idaho to San Antonio.
Top 5 airlines flying from Idaho to San Antonio
Discover the top 5 airlines that operate flights from Idaho to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$131 | Average$439 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$208 | Average$454 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$266 | Average$452 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$436 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$303 | Average$451 | FlexibilityNo cancel fee | On-time75% |