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Uncover the best deals on San Antonio to St Louis flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest SAT - STL Flights
Useful information for finding best airline tickets from San Antonio International to Lambert St Louis International on your next trip.
Cheapest Round Trip Flight
$412
Frontier Airlines
• 1 stop
• 19h 13m
Nov 27 – Nov 29
The cheapest round trip flight from San Antonio to St Louis (SAT-STL-SAT) is currently $412
Cheapest Direct Flight
$543
Southwest Airlines
• nonstop
• 3h 25m
Nov 27
The cheapest nonstop flight from San Antonio to St Louis (SAT-STL) is currently $543
Fastest Flight
3h 25m
The fastest nonstop flight from San Antonio to St Louis (SAT-STL) takes 3h 25m
Top Airlines Flying from San Antonio to St Louis
Latest Flight Deals from San Antonio (SAT) to St Louis (STL)
Compare and book low fare round-trip air tickets from San Antonio to St Louis. Ideal for travelers with confirmed return itineraries.
Nov 27 - Nov 29, Economy
San Antonio → St Louis
19h 13m
12:06 PM - 11:59 PM • 1 stop
San Antonio → St Louis
28h 26m
6:05 PM - 11:11 AM • 1 stop
Frontier Airlines
Nov 27 - Nov 29, Economy
San Antonio → St Louis
30h 9m
10:11 PM - 4:20 PM • 1 stop
San Antonio → St Louis
28h 26m
6:05 PM - 11:11 AM • 1 stop
Frontier Airlines
Nov 27 - Nov 29, Economy
San Antonio → St Louis
3h 25m
4:55 PM - 7:00 PM • nonstop
San Antonio → St Louis
3h 35m
7:55 AM - 10:10 AM • nonstop
Southwest Airlines
Nov 27 - Nov 29, Economy
San Antonio → St Louis
9h 18m
8:15 AM - 2:13 PM • 1 stop
San Antonio → St Louis
7h 11m
6:15 AM - 10:46 AM • 1 stop
United Airlines
Nov 27 - Nov 29, Economy
San Antonio → St Louis
10h 8m
1:15 PM - 7:23 PM • 1 stop
San Antonio → St Louis
7h 11m
6:15 AM - 10:46 AM • 1 stop
United Airlines
Looking for the fastest way to St Louis? These direct flight options from SAT to STL offer both convenience and value—no layovers, just straight to your destination.
Nov 27 - Nov 29, Economy
San Antonio → St Louis
3h 25m
4:55 PM - 7:00 PM • nonstop
San Antonio → St Louis
3h 35m
7:55 AM - 10:10 AM • nonstop
Southwest Airlines
FAQs on San Antonio to St Louis Flights
What are the airports in San Antonio?
SAT
What’s the most popular airline flying from SAT to STL?
The most popular airline flying from San Antonio to St Louis are
Can I fly from SAT to STL non-stop?
Yes, you can fly SAT to STL non-stop on
Which airlines fly nonstop between San Antonio and St Louis?
The non-stop flights between San Antonio and St Louis are .
What’s the earliest departure time from SAT to STL Airport?
The earliest flight leaves SAT at 7:30 am and lands in STL - Lambert St Louis International
What are the airports in St Louis?
STL
Can I make changes to my San Antonio to St Louis flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from SAT to STL?
Read the fare rules of the San Antonio to St Louis air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from San Antonio and St Louis?
operate flights between San Antonio and St Louis
How long does a flight from San Antonio to St Louis take?
It takes approximately 2 hour to fly non-stop from SAT to STL, which is 785.93 miles by air.
Which airlines provide the cheapest flights from San Antonio (SAT) to St Louis (STL) ?
In the past couple of days, the cheapest tickets to STL from SAT were found on UA : USD 663
Do I need a passport to fly between SAT and STL?
No
What’s the latest departure time from SAT to STL ?
The last flight leaves SAT at 10:11 pm
San Antonio (SAT) to St Louis (STL): Airport Information
| Origin Airport | San Antonio International , San Antonio, US |
| Destination Airport | Lambert St Louis International , St Louis, US |
| Distance | 786 miles |
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