Cheap flights from St. Louis to Dallas from $53

The cheapest month to fly to Dallas/Fort Worth Airport from St. Louis is in November. Flight prices, which tend to average around $294, are often lower during this time because this is during the off-season. If you’re not able to fly to Dallas/Fort Worth Airport in November, then May is your next best option. Flight prices from St. Louis to Dallas/Fort Worth Airport during May average around $297.

On average, the least expensive day to fly to Dallas/Fort Worth Airport from St. Louis is on a Thursday. momondo users have found tickets for Thursday departures for as low as $507. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Dallas/Fort Worth Airport for around $686.

Flying to Dallas/Fort Worth Airport from St. Louis in the evening is the least expensive time of day to depart. momondo users have found prices as low as $411 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $688 on average. Flights to Dallas/Fort Worth Airport from St. Louis in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Lambert-St Louis to Dallas/Fort Worth for the best Lambert-St Louis - Dallas/Fort Worth flight prices

You are more likely to see cheaper flights to Dallas/Fort Worth Airport from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Dallas/Fort Worth Airport for around $324 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dallas/Fort Worth Airport from St. Louis for as low as $212 on momondo.

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

You could potentially save up to 34% on your flight if you consider stops on a St. Louis to Dallas/Fort Worth Airport flight.

As of October 2026, prices for St. Louis to Dallas/Fort Worth Airport flights are approximately 44% more expensive when compared to flights at the same time last year.

Delta, United Airlines, and American Airlines are the most popular carriers operating from Lambert-St Louis to Dallas/Fort Worth

American Airlines, Southwest and Frontier are the top three most popular airlines that fly to Dallas/Fort Worth Airport from St. Louis according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Dallas/Fort Worth Airport. Keep in mind that there are 5 different airlines that fly to Dallas/Fort Worth Airport on a routine basis, so you have a few additional options to choose from.

Orlando (MCO) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $249.

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 14h 58m.

Denver (DEN) has the shortest average layover time for this route: 8h 26m.

As of October 2026, there are 27 flights per day flying from St. Louis to Dallas/Fort Worth Airport. The most common time of day flights depart is 10:00AM, with 44% of flights taking off at noon.

189 flights are operational weekly from St. Louis to Dallas/Fort Worth Airport as of October 2026. The most popular departure day for this route is Mon, with 20% of flights per week taking off on this day.