Cheap flights from St. Louis to Texas from $39

The cheapest month to fly to Texas from St. Louis is in August. Flight prices, which tend to average around $194, are often lower during this time because this is during the off-season. If you don’t want to visit Texas in August, then you should wait until September to fly from St. Louis, when ticket prices are also cheap, with an average price of $194.

According to our data, Thursday is the cheapest day to fly to Texas from St. Louis. The lowest ticket price found for a Thursday departure recently was $480. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Texas on Monday is $628.

The cheapest time of day to fly to Texas is in the evening when flights can be purchased for as low as $383. Flights to Texas are more costly in the afternoon, with an average ticket price of $741. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Lambert-St Louis to Austin Bergstrom for the best Lambert-St Louis - Texas flight prices

You are more likely to see cheaper flights to Texas from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Texas for around $275 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Texas from St. Louis for as low as $192 on momondo.

There are 4 cabin classes available to choose from on Lambert-St Louis to Texas flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Frontier, Southwest, and Delta are the most popular carriers operating from Lambert-St Louis to Texas

Southwest, American Airlines and United Airlines are the top three most popular airlines that fly to Texas from St. Louis according to our data. Southwest is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Texas. Keep in mind that there are 7 different airlines that fly to Texas on a routine basis, so you have a few additional options to choose from.

The number of flights available between St. Louis and Texas is 41 per day as of April 2026. The most frequent departure time is 4:00PM, with 50% of daily flights leaving at noon.

As of April 2026, 291 flights take off from St. Louis and land in Texas each week. The most common flight departure day for this route is Fri, with 21% of weekly flights taking off on this day.