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Cheap Flights from St Louis to San Antonio, TX, United States - STL to SAT

Popular flights from St Louis to San Antonio

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Alaska Airlines
Departure Date Return Date Lowest Price
Jul 13, 2016 Jul 18, 2016 $366
American Airlines
Departure Date Return Date Lowest Price
Jun 2, 2016 Jun 7, 2016 $240
Jun 2, 2016 Jun 9, 2016 $240
Jun 13, 2016 Jun 21, 2016 $240
Jun 13, 2016 Jun 22, 2016 $240
Jul 12, 2016 Jul 19, 2016 $240
Frontier Airlines
Departure Date Return Date Lowest Price
Aug 11, 2016 Aug 15, 2016 $304
United Airlines
Departure Date Return Date Lowest Price
May 24, 2016 Jun 2, 2016 $240
Jun 2, 2016 Jun 7, 2016 $240
Jun 18, 2016 Jun 27, 2016 $240
Jun 20, 2016 Jun 29, 2016 $240
Jul 3, 2016 Jul 11, 2016 $240

How Much Does it Cost to Fly from St Louis to San Antonio (STL to SAT)?

We have collected flight cost data from across the web for travel from St Louis to San Antonio, and have found the average flight price for this trip to be $240.

When Can I Buy the Cheapest Flight from St Louis to San Antonio (STL to SAT)?

Airlines can adjust prices for plane tickets from St Louis to San Antonio based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

Cheapest Day To Fly from St Louis to San Antonio

The chart below shows up-to-date information regarding the cheapest days to fly from St Louis to San Antonio.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$240 $240 $240 $240 $240 $240 $240

Lowest Fares Chart By Month from St Louis to San Antonio

The chart below shows the lowest fare by month when flying from St Louis to San Antonio.

Month Origin Destination Carrier Depart Date Return Date Stops Price
May St Louis San Antonio United 5/24/16 6/2/16 1 $240
June St Louis San Antonio American 6/2/16 6/7/16 1 $240
July St Louis San Antonio American 7/12/16 7/19/16 1 $240
August St Louis San Antonio American 8/2/16 8/7/16 1 $240
September St Louis San Antonio United 9/10/16 9/13/16 1 $250
October St Louis San Antonio Frontier 10/18/16 10/21/16 1 $268
November St Louis San Antonio United 11/17/16 11/20/16 1 $315
March St Louis San Antonio United 3/16/17 3/20/17 1 $370

Round Trip vs One Way Flights from St Louis to San Antonio (STL to SAT)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from St Louis to San Antonio. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from St Louis to San Antonio is $189.

The average price for round trip flights from St Louis to San Antonio is $282.

St Louis to San Antonio Flight Questions

Below are some common questions that asked about this flight route:

Question: What are the most popular connecting cities when flying from St Louis to San Antonio?
Answer: Chicago, IL

Airlines Flying from St Louis to San Antonio (STL to SAT)

Below are the different airlines that fly from St Louis to San Antonio with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from St Louis to San Antonio.

St Louis to San Antonio
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American CLT X X X X X X X
Delta DTW X X X X X X X
Delta CVG / ATL X X X X X
United ORD X X X X X X X
Southwest - X X X X X X X
Southwest DAL X X X X X X X

Airports for Your Route

These pages contain information about the major airports in St Louis and San Antonio, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from St Louis - STL

FlightsAirlineLowest Price
St Louis to Dallas - Ft Worth American, Alaska, United $203
St Louis to Austin American, Alaska, United $240
St Louis to Houston American, Alaska, United $278
St Louis to Atlanta American, Alaska, Frontier, United $95
St Louis to Chicago American, Alaska, United $213
St Louis to Killeen American, Alaska, United $423
St Louis to Denver American, Alaska, Frontier, United $108
St Louis to Las Vegas American, Alaska, Frontier, United $123
St Louis to Phoenix American, Alaska, Frontier, United $279
St Louis to Corpus Christi American, Alaska, United $410
St Louis to New York American, Alaska, United $253
St Louis to Los Angeles American, Alaska, Frontier, United $261

Cheap Domestic Flights to San Antonio - SAT

Cheap Flights from St Louis to San Antonio, TX, United States, from $240 Round trip from STL to SAT