Cheap Flight Tickets from St Louis (STL) to San Antonio (SAT), Starting at $217

Good to Know: Cheapest and Fastest STL - SAT Flights

Useful information for finding best airline tickets from Lambert St Louis International to San Antonio International on your next trip.

Cheapest Round Trip Flight

$351

WN Southwest Airlines • 1 stop • 6h 40m

Aug 09 – Aug 14

The cheapest round trip flight from St Louis to San Antonio (STL-SAT-STL) is currently $351

🔍 Search Flights

Cheapest Direct Flight

$217

WN Southwest Airlines • nonstop • 3h 30m

Sep 08

The cheapest nonstop flight from St Louis to San Antonio (STL-SAT) is currently $217

🔍 Search Flights

Fastest Flight

3h 25m

The fastest nonstop flight from St Louis to San Antonio (STL-SAT) takes 3h 25m

Top Airlines Flying from St Louis to San Antonio

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Aeromexico Airline (AM)

Aeromexico

Latest Flight Deals from St Louis (STL) to San Antonio (SAT)

Compare and book low fare round-trip air tickets from St Louis to San Antonio. Ideal for travelers with confirmed return itineraries.

Aug 09 - Aug 14, Economy
WN
St Louis → San Antonio
6h 40m
6:25 PM - 10:25 PM • 1 stop
WN
St Louis → San Antonio
7h 30m
2:15 PM - 7:05 PM • 1 stop
$351
Southwest Airlines
Aug 09 - Aug 14, Economy
DL
St Louis → San Antonio
8h 41m
10:33 AM - 3:54 PM • 1 stop
DL
St Louis → San Antonio
10h 13m
5:45 PM - 11:58 PM • 1 stop
$480
Delta Airlines
Aug 09 - Aug 14, Economy
DL
St Louis → San Antonio
17h
10:44 AM - 9:04 PM • 1 stop
DL
St Louis → San Antonio
10h 26m
5:20 AM - 11:46 AM • 1 stop
$521
Delta Airlines
Aug 09 - Aug 14, Economy
DL
St Louis → San Antonio
20h 46m
6:00 AM - 6:46 PM • 1 stop
DL
St Louis → San Antonio
10h 26m
5:20 AM - 11:46 AM • 1 stop
$547
Delta Airlines
Aug 09 - Aug 14, Economy
DL
St Louis → San Antonio
19h 6m
7:00 AM - 6:46 PM • 1 stop
DL
St Louis → San Antonio
10h 26m
5:20 AM - 11:46 AM • 1 stop
$547
Delta Airlines
Aug 09 - Aug 14, Economy
DL
St Louis → San Antonio
17h 31m
6:20 AM - 5:11 PM • 1 stop
DL
St Louis → San Antonio
10h 13m
5:45 PM - 11:58 PM • 1 stop
$550
Delta Airlines

Fly from St Louis to San Antonio with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from St Louis to San Antonio? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on St Louis to San Antonio Flights

What are the airports in St Louis?
STL
What’s the most popular airline flying from STL to SAT?
The most popular airline flying from St Louis to San Antonio are
Can I fly from STL to SAT non-stop?
Yes, you can fly STL to SAT non-stop on
Which airlines fly nonstop between St Louis and San Antonio?
The non-stop flights between St Louis and San Antonio are .
What’s the earliest departure time from STL to SAT Airport?
The earliest flight leaves STL at 6:00 am and lands in SAT - San Antonio International
What are the airports in San Antonio?
SAT
Can I make changes to my St Louis to San Antonio 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 STL to SAT?
Read the fare rules of the St Louis to San Antonio 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 St Louis and San Antonio?
operate flights between St Louis and San Antonio
How long does a flight from St Louis to San Antonio take?
It takes approximately 2 hour to fly non-stop from STL to SAT, which is 785.93 miles by air.
Which airlines provide the cheapest flights from St Louis (STL) to San Antonio (SAT) ?
In the past couple of days, the cheapest tickets to SAT from STL were found on WN : USD 351
Do I need a passport to fly between STL and SAT?
No
What’s the latest departure time from STL to SAT ?
The last flight leaves STL at 9:15 pm

St Louis (STL) to San Antonio (SAT): Airport Information

Origin Airport Lambert St Louis International , St Louis, US
Destination Airport San Antonio International , San Antonio, US
Distance 786 miles

More Flight Options for St Louis (STL) and San Antonio (SAT)

Why Fareleaders for STL to SAT Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on St Louis to San Antonio flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on STL to SAT flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of St Louis to San Antonio flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the St Louis (STL) to San Antonio (SAT)
Terms and Conditions*