$110+ Cheap flights from Missouri to San Antonio (SAT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SAT
Oct 16 — Oct 231
Round-trip
1 adult, Economy
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Find cheap flights from Missouri 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Missouri to San Antonio
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Cheapest flights from Missouri to San AntonioExplore the most affordable flight options available from Missouri to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
Explore the most affordable flight options available from Missouri to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Tue 10/208:43 pm -
1 stop22h 43m
Wed 10/288:20 pm -
1 stop23h 27m
Deal found 9/11![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Tue 10/208:43 pm -
1 stop22h 43m
Tue 10/278:20 pm -
1 stop23h 27m
Deal found 9/11![Frontier logo]()
$216
This CheapOair deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Mon 10/58:10 pm -
1 stop23h 15m
Mon 10/1910:03 am -
1 stop13h 10m
Deal found 9/11![Frontier logo]()
$255
This Trip.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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.
Thu 11/54:26 pm -
1 stop16h 52m
Tue 11/108:20 pm -
1 stop19h 03m
Deal found 9/15![Frontier logo]()
$263
This Priceline deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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.
Fri 12/49:50 am -
1 stop10h 22m
Sat 12/512:00 pm -
1 stop6h 54m
Deal found 9/12![Frontier logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 11/58:43 pm -
1 stop22h 31m
Mon 11/98:20 pm -
1 stop23h 27m
Deal found 9/15![Frontier logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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.
Fri 12/47:49 pm -
1 stop15h 16m
Mon 12/712:00 pm -
1 stop6h 54m
Deal found 9/14![Frontier logo]()
$267
This CheapOair deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 11/108:43 pm -
1 stop22h 42m
Sat 11/148:20 pm -
1 stop23h 27m
Deal found 9/11![Frontier logo]()
$268
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:57 am -
1 stop5h 49m
Wed 10/712:46 pm -
1 stop7h 07m
Deal found 9/14![American Airlines logo]()
$269
This CheapOair deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Fri 11/138:43 pm -
1 stop22h 42m
Sun 11/158:20 pm -
1 stop23h 27m
Deal found 9/11![Frontier logo]()
$272
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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.
Fri 10/161:30 pm -
1 stop8h 19m
Fri 10/238:21 pm -
1 stop22h 36m
Deal found 9/15![Frontier logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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.
Fri 10/98:43 pm -
1 stop22h 43m
Tue 10/138:21 pm -
1 stop23h 27m
Deal found 9/12![Frontier logo]()
$274
Best flights from Missouri to San AntonioDiscover carefully curated flight deals from Missouri to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
Discover carefully curated flight deals from Missouri to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
This Southwest deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 11/59:50 pm -
Nonstop2h 20m
Tue 11/102:50 pm -
1 stop4h 40m
Deal found 9/15![Southwest logo]()
$296
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 11/114:56 pm -
1 stop4h 30m
Sat 11/142:20 pm -
1 stop5h 47m
Deal found 9/11![United Airlines logo]()
$319
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/2212:16 pm -
1 stop9h 33m
Mon 10/2610:03 am -
1 stop13h 10m
Deal found 9/11![Frontier logo]()
$340
This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 11/2011:25 am -
1 stop5h 41m
Sun 11/225:00 am -
1 stop3h 42m
Deal found 9/13![American Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 11/178:25 pm -
Nonstop2h 20m
Thu 11/193:20 pm -
Nonstop2h 00m
Deal found 9/14![Southwest logo]()
$318
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:32 am -
1 stop8h 58m
Wed 9/306:35 am -
1 stop5h 34m
Deal found 9/11![United Airlines logo]()
$344
This Southwest deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 10/169:45 pm -
Nonstop2h 10m
Mon 10/194:40 pm -
1 stop7h 00m
Deal found 9/14![Southwest logo]()
$325
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 10/216:24 pm -
1 stop5h 34m
Sat 10/245:00 am -
1 stop6h 31m
Deal found 9/15![American Airlines logo]()
$390
This Southwest deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 10/239:45 pm -
Nonstop2h 10m
Mon 10/267:55 pm -
1 stop4h 45m
Deal found 9/15![Southwest logo]()
$325
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:19 pm -
1 stop7h 31m
Sat 10/35:32 pm -
1 stop5h 23m
Deal found 9/14![United Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 9/306:00 am -
1 stop6h 11m
Sun 10/45:30 am -
1 stop5h 07m
Deal found 9/15![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 10/237:49 pm -
1 stop4h 10m
Sun 10/255:00 am -
1 stop4h 01m
Deal found 9/15![American Airlines logo]()
$418
This Southwest deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/64:25 pm -
Nonstop2h 00m
Wed 10/71:05 pm -
Nonstop1h 55m
Deal found 9/11![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:45 am -
1 stop7h 01m
Fri 11/275:57 pm -
1 stop4h 33m
Deal found 9/11![United Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 10/101:50 pm -
Nonstop2h 10m
Sat 10/173:45 pm -
1 stop4h 25m
Deal found 9/12![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 10/313:10 pm -
1 stop7h 47m
Thu 11/55:34 pm -
1 stop5h 36m
Deal found 9/12![United Airlines logo]()
$378
This Southwest deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/229:45 pm -
Nonstop2h 10m
Mon 10/266:45 pm -
1 stop5h 05m
Deal found 9/11![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 10/133:12 pm -
1 stop6h 19m
Tue 10/2011:47 am -
2 stops9h 34m
Deal found 9/15![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/55:50 pm -
1 stop6h 55m
Mon 10/195:00 pm -
Nonstop2h 05m
Deal found 9/11![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:48 pm -
2 stops9h 03m
Tue 10/2711:45 am -
2 stops10h 06m
Deal found 9/14![United Airlines logo]()
$396
This Southwest deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 11/139:50 pm -
Nonstop2h 20m
Sun 11/157:30 am -
Nonstop2h 05m
Deal found 9/14![Southwest logo]()
$361
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 11/107:36 am -
2 stops8h 02m
Fri 11/135:30 am -
2 stops10h 41m
Deal found 9/15![United Airlines logo]()
$396
This Southwest deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 12/38:25 pm -
Nonstop2h 20m
Mon 12/77:25 am -
Nonstop2h 10m
Deal found 9/14![Southwest logo]()
$367
This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 9/256:15 am -
1 stop4h 28m
Sun 9/275:30 am -
1 stop5h 07m
Deal found 9/12![United Airlines logo]()
$399
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 11/232:10 pm -
Nonstop2h 05m
Fri 11/2711:25 am -
Nonstop1h 55m
Deal found 9/10![Southwest logo]()
$390
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:00 am -
1 stop6h 53m
Mon 10/195:30 am -
1 stop5h 07m
Deal found 9/15![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 10/96:05 pm -
Nonstop2h 00m
Tue 10/1312:55 pm -
1 stop3h 30m
Deal found 9/12![Southwest logo]()
$393
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 10/216:15 am -
2 stops9h 38m
Sat 10/246:35 am -
1 stop8h 03m
Deal found 9/15![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 10/245:40 am -
1 stop3h 25m
Thu 10/2911:40 am -
Nonstop1h 55m
Deal found 9/13![Southwest logo]()
$397
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 2/31:33 pm -
1 stop7h 34m
Sat 2/64:45 pm -
1 stop6h 59m
Deal found 9/11![United Airlines logo]()
$414
Last-minute flights from Missouri to San AntonioDiscover last-minute flight deals from Missouri to San Antonio. Data last updated September 16, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to San Antonio. Data last updated September 16, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Mon 10/58:10 pm -
1 stop23h 15m
Mon 10/1910:03 am -
1 stop13h 10m
Deal found 9/11![Frontier logo]()
$255
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:57 am -
1 stop5h 49m
Wed 10/712:46 pm -
1 stop7h 07m
Deal found 9/14![American Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/64:25 pm -
Nonstop2h 00m
Thu 10/88:45 pm -
1 stop3h 55m
Deal found 9/11![Southwest logo]()
$275
This CheapOair deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/84:30 pm -
1 stop16h 38m
Sun 10/1110:29 pm -
1 stop14h 06m
Deal found 9/11![Frontier logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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.
Fri 10/98:43 pm -
1 stop22h 43m
Tue 10/138:21 pm -
1 stop23h 27m
Deal found 9/12![Frontier logo]()
$274
This Frontier deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 10/154:30 pm -
1 stop16h 38m
Mon 10/1910:03 am -
1 stop13h 10m
Deal found 9/13![Frontier logo]()
$279
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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.
Fri 10/161:30 pm -
1 stop8h 19m
Fri 10/238:21 pm -
1 stop22h 36m
Deal found 9/15![Frontier logo]()
$272
This Frontier deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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.
Fri 10/161:30 pm -
1 stop8h 19m
Mon 10/1910:03 am -
1 stop13h 10m
Deal found 9/14![Frontier logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Tue 10/208:43 pm -
1 stop22h 43m
Wed 10/288:20 pm -
1 stop23h 27m
Deal found 9/11![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Tue 10/208:43 pm -
1 stop22h 43m
Tue 10/278:20 pm -
1 stop23h 27m
Deal found 9/11![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:43 pm -
1 stop22h 43m
Mon 10/268:21 pm -
1 stop23h 26m
Deal found 9/14![Frontier logo]()
$280
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Fri 10/231:30 pm -
1 stop8h 19m
Fri 10/3010:13 am -
1 stop13h 03m
Deal found 9/11![Frontier logo]()
$262
One-way flights from Missouri to San AntonioSearch for one-way flight options from Missouri to San Antonio. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
Search for one-way flight options from Missouri to San Antonio. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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.
Tue 11/178:43 pm -
1 stop22h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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.
Tue 10/138:43 pm -
1 stop22h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$111
This Expedia deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Mon 10/58:10 pm -
1 stop23h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$114
This Trip.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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.
Wed 10/148:43 pm -
1 stop22h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 11/168:43 pm -
1 stop22h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 11/118:43 pm -
1 stop22h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$127
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Mon 12/710:07 am -
1 stop10h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$129
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Fri 11/1312:53 pm -
1 stop8h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$131
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/86:05 pm -
Nonstop2h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Southwest logo]()
$133
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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.
Fri 10/161:30 pm -
1 stop8h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 11/116:44 pm -
2 stops24h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Frontier logo]()
$135
This Trip.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/68:32 pm -
1 stop22h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$136
Find flight deals from Missouri to San Antonio
Keep the following information in mind while searching for Missouri to San Antonio flight deals. Data was last updated September 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $161 (Kiwi.com) |
One-way from | $110 (Kiwi.com) |
Popular in | August |
Cheapest in | January |
Average price | $387 |
Good round-trip deal | $337 or less |
Good one-way deal | $163 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri 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 7,457,451 searches. Data last updated September 16, 2026.
Use the filters below to find and compare flights from Missouri to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisSan Antonio
STL Lambert-St Louis - SAT San Antonio
STLSAT
Lambert-St Louis
Wed 11/11
10:00 am-3:27 pm
1 stop5h 27m
San Antonio
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$138
St. LouisSan Antonio
STL Lambert-St Louis - SAT San Antonio
STLSAT
Lambert-St Louis
Tue 11/17
5:48 pm-12:33 am
1 stop6h 45m
San Antonio
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$138
Kansas CitySan Antonio
MCI Kansas City - SAT San Antonio
MCISAT
Kansas City
Sat 11/14
1:34 pm-10:51 pm
2 stops9h 17m
San Antonio
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$140
Kansas CitySan Antonio
MCI Kansas City - SAT San Antonio
MCISAT
Kansas City
Sat 10/17
7:04 am-3:24 pm
1 stop8h 20m
San Antonio
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$163
Kansas CitySan Antonio
MCI Kansas City - SAT San Antonio
MCISAT
Kansas City
Wed 11/11
1:34 pm-10:51 pm
2 stops9h 17m
San Antonio
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$180
Kansas CitySan Antonio
MCI Kansas City - SAT San Antonio
MCISAT
Kansas City
Fri 11/13
2:10 pm-4:15 pm
Nonstop2h 05m
San Antonio
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$181
St. LouisSan Antonio
STL Lambert-St Louis - SAT San Antonio
STLSAT
Lambert-St Louis
Tue 11/10
7:18 pm-12:33 am
1 stop5h 15m
San Antonio
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$184
St. LouisSan Antonio
STL Lambert-St Louis - SAT San Antonio
STLSAT
Lambert-St Louis
Thu 10/15
5:35 pm-12:33 am
1 stop6h 58m
San Antonio
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$184
St. LouisSan Antonio
STL Lambert-St Louis - SAT San Antonio
STLSAT
Lambert-St Louis
Thu 10/8
5:35 pm-12:33 am
1 stop6h 58m
San Antonio
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$194
St. LouisSan Antonio
STL Lambert-St Louis - SAT San Antonio
STLSAT
Lambert-St Louis
Sat 10/10
12:00 pm-7:48 pm
1 stop7h 48m
San Antonio
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$194
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to San Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Missouri with our price prediction graph.
STL-SAT
MCI-SAT
SGF-SAT
COU-SAT
JLN-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 Missouri to San Antonio
USMO-SAT
STL-SAT
MCI-SAT
SGF-SAT
COU-SAT
What is the cheapest month to book a flight from Missouri to San Antonio?
Currently, February is the cheapest month in which you can book a flight from Missouri to San Antonio (average of $335). Flying from Missouri to San Antonio in July is currently the most expensive (average of $464). 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 MO to SAT?
Find hourly flight availability from Missouri to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2026.
When flying from Missouri to San Antonio, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 26% versus a flight in the evening.
How much does it cost to fly round-trip from Missouri to San Antonio?
Airfare is below average for this route at the moment.
Missouri to San Antonio flights typically cost between $317 and $530 in October.The cheapest round-trip price found within the last 5 days was $255 on Frontier (Oct 5-Oct 19).
How far ahead should I book a flight from Missouri to San Antonio?
The best time to book flights from Missouri to San Antonio is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Related info for your journey
Find useful and relevant information for your journey from Missouri 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
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Alternative routes for Missouri 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 Missouri to San Antonio by cabin class
Find flights from Missouri to San Antonio, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and San Antonio flights
Browse other Missouri and San Antonio flight options. Last updated on September 16, 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 September 16, 2026.
Missouri to San Antonio flights
Consider these flights traveling from Missouri to San Antonio.
Top 5 airlines flying from Missouri to San Antonio
Discover the top 5 airlines that operate flights from Missouri 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 7,457,451 searches. Data last updated September 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$111 | Average$270 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$149 | Average$266 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$196 | Average$343 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$224 | Average$421 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$266 | Average$403 | FlexibilityNo cancel fee | On-time63% |