$214+ 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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAT
Mar 4 — Mar 111
1 adult, Economy
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Find cheap flights from Idaho to San Antonio 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
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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 Idaho to San Antonio
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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 February 2, 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 February 2, 2026.
This CheapOair deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1212:03 pm
BOI
- SAT
1 stop11h 16m
Frontier
Sat 4/183:34 pm
SAT
- BOI
1 stop20h 34m
Frontier
Deal found 1/31![Frontier logo]()
$236
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:15 am
BOI
- SAT
1 stop5h 45m
United Airlines
Sat 5/21:11 pm
SAT
- BOI
1 stop6h 06m
United Airlines
Deal found 2/1![United Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1012:25 pm
GEG
- SAT
1 stop9h 31m
American Airlines
Tue 3/177:09 pm
SAT
- GEG
1 stop6h 05m
American Airlines
Deal found 1/31![American Airlines logo]()
$237
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/101:37 pm
GEG
- SAT
1 stop7h 55m
United Airlines
Tue 3/1711:44 am
SAT
- GEG
2 stops11h 19m
United Airlines
Deal found 1/31![United Airlines logo]()
$271
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/182:30 pm
IDA
- SAT
1 stop5h 12m
United Airlines
Sat 4/258:45 am
SAT
- IDA
1 stop5h 39m
United Airlines
Deal found 1/31![United Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1311:30 am
IDA
- SAT
2 stops11h 18m
Delta
Sun 5/175:59 pm
SAT
- IDA
1 stop5h 43m
Delta
Deal found 2/1![Delta logo]()
$294
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:20 am
JAC
- SAT
1 stop5h 18m
Delta
Wed 5/67:35 am
SAT
- JAC
2 stops9h 34m
Delta
Deal found 1/31![Delta logo]()
$304
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:41 am
BOI
- SAT
2 stops11h 51m
Delta
Sat 5/26:02 pm
SAT
- BOI
1 stop6h 09m
Delta
Deal found 2/1![Delta logo]()
$304
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:47 am
IDA
- SAT
2 stops7h 46m
Delta
Sat 4/256:20 pm
SAT
- IDA
1 stop5h 20m
Delta
Deal found 1/31![Delta logo]()
$306
This United Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:15 am
BOI
- SAT
1 stop5h 45m
United Airlines
Thu 4/164:45 pm
SAT
- BOI
1 stop6h 50m
United Airlines
Deal found 1/30![United Airlines logo]()
$307
This Frontier deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2612:15 pm
BOI
- SAT
1 stop11h 02m
Frontier
Sun 3/296:45 am
SAT
- BOI
1 stop5h 35m
Frontier
Deal found 1/31![Frontier logo]()
$309
This Expedia deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1511:32 am
GEG
- SAT
1 stop19h 34m
Frontier
Thu 3/196:45 am
SAT
- GEG
1 stop6h 02m
Frontier
Deal found 1/31![Frontier logo]()
$309
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 February 2, 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 February 2, 2026.
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/15:00 pm
GEG
- SAT
1 stop5h 16m
Delta
Wed 4/86:32 am
SAT
- GEG
1 stop8h 38m
Delta
Deal found 1/30![Delta logo]()
$237
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/182:30 pm
IDA
- SAT
1 stop5h 12m
United Airlines
Sat 4/258:45 am
SAT
- IDA
1 stop5h 39m
United Airlines
Deal found 1/31![United Airlines logo]()
$289
This Alaska Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:00 am
GEG
- SAT
1 stop9h 05m
Alaska Airlines
Fri 5/156:01 pm
SAT
- GEG
1 stop8h 13m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$312
This Southwest deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:00 am
GEG
- SAT
2 stops9h 30m
Southwest
Tue 3/171:30 pm
SAT
- GEG
2 stops10h 05m
Southwest
Deal found 1/31![Southwest logo]()
$322
This Expedia deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1512:15 pm
BOI
- SAT
1 stop19h 51m
Frontier
Thu 3/196:45 am
SAT
- BOI
1 stop5h 35m
Frontier
Deal found 1/30![Frontier logo]()
$329
This Expedia deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:04 pm
BOI
- SAT
1 stop21h 50m
Multiple Airlines
Sun 3/296:45 am
SAT
- BOI
1 stop5h 35m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/612:25 pm
GEG
- SAT
1 stop9h 31m
American Airlines
Sun 3/88:08 pm
SAT
- GEG
1 stop6h 15m
American Airlines
Deal found 1/31![American Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1311:30 am
IDA
- SAT
1 stop4h 37m
Delta
Sun 5/175:59 pm
SAT
- IDA
1 stop5h 43m
Delta
Deal found 2/1![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:15 am
BOI
- SAT
1 stop5h 45m
United Airlines
Thu 4/164:45 pm
SAT
- BOI
1 stop6h 50m
United Airlines
Deal found 1/30![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:20 am
JAC
- SAT
1 stop5h 18m
Delta
Wed 5/67:35 am
SAT
- JAC
2 stops9h 34m
Delta
Deal found 1/31![Delta logo]()
$304
This Southwest deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/13:25 pm
GEG
- SAT
2 stops7h 10m
Southwest
Wed 4/84:25 pm
SAT
- GEG
2 stops9h 00m
Southwest
Deal found 1/30![Southwest logo]()
$348
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:41 am
BOI
- SAT
2 stops11h 51m
Delta
Sat 5/26:02 pm
SAT
- BOI
1 stop6h 09m
Delta
Deal found 2/1![Delta logo]()
$304
This Alaska Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/161:43 pm
IDA
- SAT
1 stop14h 46m
Alaska Airlines
Sat 5/236:01 pm
SAT
- IDA
1 stop22h 30m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$391
This Southwest deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1811:20 am
BOI
- SAT
2 stops8h 45m
Southwest
Wed 3/412:40 pm
SAT
- BOI
1 stop5h 35m
Southwest
Deal found 1/31![Southwest logo]()
$362
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/292:35 pm
JAC
- SAT
1 stop5h 07m
United Airlines
Wed 5/68:48 am
SAT
- JAC
1 stop7h 30m
United Airlines
Deal found 1/31![United Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:23 am
GEG
- SAT
1 stop6h 24m
Delta
Fri 5/155:59 pm
SAT
- GEG
2 stops7h 57m
Delta
Deal found 1/31![Delta logo]()
$324
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:11 am
BOI
- SAT
2 stops9h 32m
United Airlines
Mon 4/204:45 pm
SAT
- BOI
1 stop5h 37m
United Airlines
Deal found 1/31![United Airlines logo]()
$382
This Southwest deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:40 am
BOI
- SAT
2 stops8h 05m
Southwest
Sun 3/299:20 pm
SAT
- BOI
1 stop5h 35m
Southwest
Deal found 1/30![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/121:45 pm
BOI
- SAT
2 stops9h 31m
Delta
Sat 4/187:35 am
SAT
- BOI
1 stop8h 28m
Delta
Deal found 2/1![Delta logo]()
$336
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:32 pm
SUN
- SAT
1 stop5h 24m
United Airlines
Sat 2/2811:43 am
SAT
- SUN
2 stops11h 21m
United Airlines
Deal found 1/31![United Airlines logo]()
$395
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/161:52 pm
BOI
- SAT
2 stops9h 33m
Delta
Mon 4/2012:39 pm
SAT
- BOI
2 stops9h 45m
Delta
Deal found 1/31![Delta logo]()
$373
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/162:31 pm
IDA
- SAT
1 stop5h 18m
United Airlines
Sat 5/235:24 pm
SAT
- IDA
2 stops17h 31m
United Airlines
Deal found 1/31![United Airlines logo]()
$421
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:15 pm
BOI
- SAT
1 stop5h 01m
Delta
Mon 4/136:02 pm
SAT
- BOI
1 stop4h 54m
Delta
Deal found 2/1![Delta logo]()
$377
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:09 am
LWS
- SAT
2 stops9h 01m
Delta
Sat 5/26:02 pm
SAT
- LWS
2 stops8h 06m
Delta
Deal found 2/1![Delta logo]()
$383
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1212:41 pm
SUN
- SAT
2 stops10h 02m
Delta
Mon 2/167:35 am
SAT
- SUN
1 stop8h 05m
Delta
Deal found 1/31![Delta logo]()
$389
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:58 pm
IDA
- SAT
2 stops13h 48m
Delta
Sat 4/257:35 am
SAT
- IDA
2 stops11h 42m
Delta
Deal found 1/31![Delta logo]()
$410
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/127:00 am
SUN
- SAT
2 stops7h 38m
United Airlines
Mon 2/1611:43 am
SAT
- SUN
2 stops10h 36m
United Airlines
Deal found 2/1![United Airlines logo]()
$646
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/35:00 pm
GEG
- SAT
1 stop5h 16m
Delta
Fri 4/106:32 am
SAT
- GEG
1 stop8h 38m
Delta
Deal found 1/31![Delta logo]()
$423
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/205:00 pm
GEG
- SAT
1 stop5h 16m
Delta
Mon 3/235:55 pm
SAT
- GEG
1 stop7h 55m
Delta
Deal found 2/1![Delta logo]()
$423
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/512:30 pm
PIH
- SAT
2 stops10h 13m
Delta
Wed 3/117:00 am
SAT
- PIH
1 stop5h 47m
Delta
Deal found 1/30![Delta logo]()
$482
Last-minute flights from Idaho to San AntonioDiscover last-minute flight deals from Idaho to San Antonio. Data last updated February 2, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to San Antonio. Data last updated February 2, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/312:40 pm
IDA
- SAT
1 stop5h 04m
United Airlines
Tue 2/38:30 am
SAT
- IDA
1 stop6h 00m
United Airlines
Deal found 1/30![United Airlines logo]()
$469
This Expedia deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/812:03 pm
GEG
- SAT
1 stop5h 26m
Multiple Airlines
Sun 2/156:06 pm
SAT
- GEG
1 stop7h 53m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/127:25 am
SUN
- SAT
1 stop5h 18m
Delta
Mon 2/167:35 am
SAT
- SUN
1 stop8h 05m
Delta
Deal found 1/31![Delta logo]()
$384
This Expedia deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/158:12 pm
GEG
- SAT
1 stop10h 33m
Multiple Airlines
Thu 2/196:10 pm
SAT
- GEG
1 stop6h 51m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$424
This CheapOair deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/1511:56 am
BOI
- SAT
1 stop5h 26m
Frontier
Sat 2/217:56 pm
SAT
- BOI
1 stop16h 15m
Frontier
Deal found 1/30![Frontier logo]()
$446
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/157:00 am
BOI
- SAT
1 stop6h 18m
American Airlines
Sat 2/215:00 am
SAT
- BOI
1 stop8h 51m
American Airlines
Deal found 2/1![American Airlines logo]()
$472
This Southwest deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1811:20 am
BOI
- SAT
1 stop4h 40m
Southwest
Wed 3/412:40 pm
SAT
- BOI
1 stop5h 35m
Southwest
Deal found 1/31![Southwest logo]()
$317
This American Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/181:39 pm
BOI
- SAT
1 stop8h 15m
American Airlines
Sat 2/217:00 am
SAT
- BOI
1 stop6h 51m
American Airlines
Deal found 1/31![American Airlines logo]()
$378
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/181:43 pm
BOI
- SAT
1 stop9h 52m
Delta
Sat 2/217:35 am
SAT
- BOI
2 stops11h 47m
Delta
Deal found 1/31![Delta logo]()
$426
This Expedia deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1912:36 pm
BOI
- SAT
1 stop5h 54m
Multiple Airlines
Thu 3/56:10 pm
SAT
- BOI
2 stops15h 03m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$443
This Expedia deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2011:56 am
BOI
- SAT
1 stop6h 41m
Multiple Airlines
Sun 2/225:00 am
SAT
- BOI
1 stop8h 48m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$461
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:32 pm
SUN
- SAT
1 stop5h 24m
United Airlines
Sat 2/2811:43 am
SAT
- SUN
2 stops11h 21m
United Airlines
Deal found 1/31![United Airlines logo]()
$395
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 February 2, 2026.
Search for one-way flight options from Idaho to San Antonio. Find affordable one-way fares based on user searches. Data last updated February 2, 2026.
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/306:30 am
BOI
- SAT
1 stop5h 12m
United Airlines
Deal found 2/1![United Airlines logo]()
$214
This Southwest deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3011:00 am
BOI
- SAT
2 stops8h 55m
Southwest
Deal found 2/1![Southwest logo]()
$219
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:05 pm
JAC
- SAT
1 stop6h 20m
Delta
Deal found 2/1![Delta logo]()
$223
This Alaska Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/161:39 pm
BOI
- SAT
1 stop7h 40m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$264
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/125:25 am
IDA
- SAT
1 stop7h 18m
Delta
Deal found 1/31![Delta logo]()
$281
This Delta deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/155:30 pm
JAC
- SAT
1 stop6h 14m
Delta
Deal found 1/31![Delta logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/309:00 am
BOI
- SAT
3 stops24h 50m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$477
This Alaska Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1511:50 am
JAC
- SAT
2 stops26h 06m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$928
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/151:30 pm
JAC
- SAT
3 stops38h 43m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$2,150
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 February 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $198 (Expedia) |
Popular in | June |
Cheapest in | August |
Average price | $353 |
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 February 2, 2026.
Use the filters below to find and compare flights from Idaho to San Antonio that are best for you.
Fly from
Idaho
Fly to
San Antonio
Route
Depart
Return
Price
SpokaneSan Antonio
GEG - SAT
GEGSAT
Spokane
Wed 4/1
5:00 pm-12:16 am
1 stop5h 16m
San Antonio
Wed 4/8
6:32 am-1:10 pm
1 stop8h 38m
$237
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Sat 4/18
2:30 pm-8:42 pm
1 stop5h 12m
San Antonio
Sat 4/25
8:45 am-1:24 pm
1 stop5h 39m
$289
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Wed 5/13
11:30 am-5:07 pm
1 stop4h 37m
San Antonio
Sun 5/17
5:59 pm-10:42 pm
1 stop5h 43m
$289
JacksonSan Antonio
JAC - SAT
JACSAT
Jackson Hole
Wed 4/29
7:20 am-1:38 pm
1 stop5h 18m
San Antonio
Wed 5/6
7:35 am-4:09 pm
2 stops9h 34m
$304
BoiseSan Antonio
BOI - SAT
BOISAT
Boise Air Term. Gowen Fld
Wed 4/29
10:41 am-11:32 pm
2 stops11h 51m
San Antonio
Sat 5/2
6:02 pm-11:11 pm
1 stop6h 09m
$304
BoiseSan Antonio
BOI - SAT
BOISAT
Boise Air Term. Gowen Fld
Tue 4/14
6:15 am-1:00 pm
1 stop5h 45m
San Antonio
Thu 4/16
4:45 pm-10:35 pm
1 stop6h 50m
$307
SpokaneSan Antonio
GEG - SAT
GEGSAT
Spokane
Tue 5/12
6:00 am-5:05 pm
1 stop9h 05m
San Antonio
Fri 5/15
6:01 pm-12:14 am
1 stop8h 13m
$312
SpokaneSan Antonio
GEG - SAT
GEGSAT
Spokane
Tue 3/10
6:00 am-5:30 pm
2 stops9h 30m
San Antonio
Tue 3/17
1:30 pm-9:35 pm
2 stops10h 05m
$322
SpokaneSan Antonio
GEG - SAT
GEGSAT
Spokane
Tue 5/12
6:23 am-2:47 pm
1 stop6h 24m
San Antonio
Fri 5/15
5:59 pm-11:56 pm
2 stops7h 57m
$324
BoiseSan Antonio
BOI - SAT
BOISAT
Boise Air Term. Gowen Fld
Sun 3/15
12:15 pm-9:06 am
1 stop19h 51m
San Antonio
Thu 3/19
6:45 am-11:20 am
1 stop5h 35m
$329
Showing 1-10 of 39 results
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
GEG-SAT
IDA-SAT
JAC-SAT
SUN-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
GEG-SAT
IDA-SAT
JAC-SAT
What is the cheapest month to book a flight from Idaho to San Antonio?
Currently, March is the cheapest month in which you can book a flight from Idaho to San Antonio (average of $124). Flying from Idaho to San Antonio in August is currently the most expensive (average of $244). 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.
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.
Alternative routes for Idaho to San Antonio
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Idaho to San Antonio
Discover the top 4 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 February 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$131 | Average$372 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$208 | Average$430 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$230 | Average$388 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$259 | Average$334 | FlexibilityNo cancel fee | On-time71% |