$87+ Cheap flights from San Antonio to St. Louis (SAT - STL)
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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — STL
Oct 21 — Oct 281
Round-trip
1 adult, Economy
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Find cheap flights from San Antonio to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Antonio to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Antonio to St. LouisExplore the most affordable flight options available from San Antonio to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
Explore the most affordable flight options available from San Antonio to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/56:35 am -
1 stop6h 57m
Mon 11/92:20 pm -
1 stop10h 03m
Deal found 9/17![Delta logo]()
$173
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/156:50 am -
1 stop6h 30m
Mon 10/195:35 pm -
1 stop6h 58m
Deal found 9/17![Delta logo]()
$177
This CheapOair deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 11/510:29 pm -
1 stop14h 04m
Mon 11/97:59 pm -
1 stop23h 26m
Deal found 9/18![Frontier logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/138:21 pm -
1 stop19h 03m
Wed 10/146:35 pm -
2 stops24h 51m
Deal found 9/18![Frontier logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 11/118:20 pm -
2 stops45h 20m
Wed 11/184:18 pm -
1 stop27h 07m
Deal found 9/19![Frontier logo]()
$260
This CheapOair deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/158:21 pm -
1 stop22h 54m
Mon 10/198:00 pm -
1 stop23h 26m
Deal found 9/20![Frontier logo]()
$275
This Trip.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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.
Fri 10/308:11 pm -
1 stop23h 03m
Sun 11/14:26 pm -
1 stop16h 52m
Deal found 9/20![Frontier logo]()
$282
This CheapOair deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/1510:34 pm -
1 stop14h 01m
Thu 10/224:30 pm -
1 stop16h 38m
Deal found 9/16![Frontier logo]()
$288
Best flights from San Antonio to St. LouisDiscover carefully curated flight deals from San Antonio to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
Discover carefully curated flight deals from San Antonio to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/56:35 am -
1 stop6h 57m
Mon 11/92:20 pm -
1 stop10h 03m
Deal found 9/17![Delta logo]()
$173
This Southwest deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 11/71:15 pm -
1 stop7h 15m
Mon 11/99:50 pm -
Nonstop2h 20m
Deal found 9/16![Southwest logo]()
$321
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/135:58 pm -
1 stop4h 32m
Wed 10/1410:27 am -
1 stop6h 04m
Deal found 9/18![United Airlines logo]()
$362
This Southwest deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/213:35 pm -
Nonstop2h 05m
Tue 10/273:35 pm -
2 stops6h 40m
Deal found 9/20![Southwest logo]()
$362
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 11/711:45 am -
2 stops9h 55m
Mon 11/95:00 am -
2 stops8h 16m
Deal found 9/16![United Airlines logo]()
$385
This Southwest deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 11/65:55 pm -
1 stop6h 40m
Sun 11/89:50 pm -
Nonstop2h 20m
Deal found 9/20![Southwest logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 11/55:57 pm -
1 stop4h 29m
Mon 11/95:00 am -
2 stops10h 38m
Deal found 9/16![United Airlines logo]()
$398
This Southwest deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/133:35 pm -
Nonstop2h 05m
Wed 10/148:50 pm -
Nonstop2h 15m
Deal found 9/18![Southwest logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/2711:45 am -
2 stops9h 55m
Thu 10/295:55 pm -
1 stop4h 56m
Deal found 9/17![United Airlines logo]()
$426
This Southwest deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/155:45 pm -
1 stop5h 30m
Sun 10/189:45 pm -
Nonstop2h 10m
Deal found 9/17![Southwest logo]()
$407
This Southwest deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/155:00 pm -
Nonstop2h 05m
Thu 10/229:45 pm -
Nonstop2h 10m
Deal found 9/16![Southwest logo]()
$427
This Southwest deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 11/187:25 am -
Nonstop2h 10m
Fri 11/208:20 am -
Nonstop2h 15m
Deal found 9/20![Southwest logo]()
$429
Last-minute flights from San Antonio to St. LouisDiscover last-minute flight deals from San Antonio to St. Louis. Data last updated September 21, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to St. Louis. Data last updated September 21, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/26:35 am -
1 stop7h 33m
Tue 10/62:25 pm -
1 stop7h 23m
Deal found 9/17![Delta logo]()
$303
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/138:21 pm -
1 stop19h 03m
Wed 10/146:35 pm -
2 stops24h 51m
Deal found 9/18![Frontier logo]()
$259
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/156:50 am -
1 stop6h 30m
Mon 10/195:35 pm -
1 stop6h 58m
Deal found 9/17![Delta logo]()
$177
This CheapOair deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 10/158:21 pm -
1 stop22h 54m
Mon 10/198:00 pm -
1 stop23h 26m
Deal found 9/20![Frontier logo]()
$275
This CheapOair deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/1510:34 pm -
1 stop14h 01m
Thu 10/224:30 pm -
1 stop16h 38m
Deal found 9/16![Frontier logo]()
$288
This American Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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.
Sat 10/172:05 pm -
1 stop4h 15m
Sat 10/245:40 am -
1 stop4h 06m
Deal found 9/18![American Airlines logo]()
$291
This Southwest deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/287:20 am -
Nonstop2h 05m
Thu 10/298:30 am -
Nonstop2h 10m
Deal found 9/17![Southwest logo]()
$292
This Trip.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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.
Fri 10/308:11 pm -
1 stop23h 03m
Sun 11/14:26 pm -
1 stop16h 52m
Deal found 9/20![Frontier logo]()
$282
One-way flights from San Antonio to St. LouisSearch for one-way flight options from San Antonio to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
Search for one-way flight options from San Antonio to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/131:41 pm -
1 stop7h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Delta logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/208:21 pm -
1 stop19h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 11/178:20 pm -
1 stop19h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$103
This Frontier deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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.
Wed 11/1810:29 pm -
1 stop14h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 12/156:47 pm -
1 stop16h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$125
This Priceline deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/510:05 am -
1 stop6h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 11/1610:29 pm -
2 stops43h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$131
Find flight deals from San Antonio to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $173 (Delta) |
One-way from | $87 (Delta) |
Popular in | September |
Cheapest in | February |
Average price | $552 |
Good round-trip deal | $387 or less |
Good one-way deal | $235 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio to St. Louis 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 21, 2026.
Use the filters below to find and compare flights from San Antonio to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioSt. Louis
SAT San Antonio - STL Lambert-St Louis
SATSTL
San Antonio
Tue 11/17
11:45 am-5:14 pm
1 stop5h 29m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$87
San AntonioSt. Louis
SAT San Antonio - STL Lambert-St Louis
SATSTL
San Antonio
Wed 12/16
6:16 am-11:29 am
1 stop5h 13m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$138
San AntonioSt. Louis
SAT San Antonio - STL Lambert-St Louis
SATSTL
San Antonio
Fri 10/2
6:10 pm-11:42 pm
1 stop5h 32m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$152
San AntonioSt. Louis
SAT San Antonio - STL Lambert-St Louis
SATSTL
San Antonio
Thu 11/5
6:35 am-1:32 pm
1 stop6h 57m
Lambert-St Louis
Mon 11/9
2:20 pm-12:23 am
1 stop10h 03m
$173
Quickest round-trip
San AntonioSt. Louis
SAT San Antonio - STL Lambert-St Louis
SATSTL
San Antonio
Mon 10/19
5:00 pm-7:05 pm
Nonstop2h 05m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$174
San AntonioSt. Louis
SAT San Antonio - STL Lambert-St Louis
SATSTL
San Antonio
Thu 12/17
7:30 am-9:35 am
Nonstop2h 05m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$179
San AntonioSt. Louis
SAT San Antonio - STL Lambert-St Louis
SATSTL
San Antonio
Tue 12/15
11:47 am-10:15 pm
2 stops10h 28m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$183
San AntonioSt. Louis
SAT San Antonio - STL Lambert-St Louis
SATSTL
San Antonio
Wed 12/16
2:18 pm-10:59 pm
2 stops8h 41m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$183
San AntonioSt. Louis
SAT San Antonio - STL Lambert-St Louis
SATSTL
San Antonio
Wed 10/21
5:30 am-10:51 am
1 stop5h 21m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$184
San AntonioSt. Louis
SAT San Antonio - STL Lambert-St Louis
SATSTL
San Antonio
Thu 12/17
7:38 am-1:28 pm
1 stop5h 50m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$187
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from San Antonio to St. Louis
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to St. Louis in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on San Antonio-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Antonio to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from San Antonio with our price prediction graph.
SAT-STL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Antonio to St. Louis
What is the cheapest month to book a flight from San Antonio to St. Louis?
Currently, February is the cheapest month in which you can book a flight from San Antonio to St. Louis (average of $313). Flying from San Antonio to St. Louis in September is currently the most expensive (average of $552). 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 SAT to STL?
Find hourly flight availability from San Antonio to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 21, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Antonio to St. Louis as you normally would.
The best insider tips for San Antonio to St. Louis flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your San Antonio to St. Louis trip
Our travel experts
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated September 21, 2026.
See what other customers who have flown with Southwest,United Airlines, andAmerican Airlines from San Antonio to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Related info for your journey
Find useful and relevant information for your journey from San Antonio to St. Louis. 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 St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Collinsville
Edwardsville
Glencoe
Chesterfield
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San Antonio and St. Louis flights
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Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 21, 2026.
Top 3 airlines flying from San Antonio to St. Louis
Discover the top 3 airlines that operate flights from San Antonio to St. Louis. 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 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$192 | Average$348 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$257 | Average$470 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$286 | Average$476 | FlexibilityNo cancel fee | On-time63% |