$70 Cheap American Airlines flights Dallas (DFW) to St. Louis (STL)

You'll find affordable round-trip American Airlines flights from $139 from DFW to STL by sorting your results from "Price (lowest to highest)" on Expedia. Or search for deals from $70 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

For cheap American Airlines fares from Dallas-Fort Worth Intl. Airport (DFW) to Lambert-St. Louis Intl. Airport (STL), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the overall cost. Sunday is typically the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

Leaving DFW at 8:59AM UTC-6, the first American Airlines flight to STL lands at 10:48AM UTC-6. Traveling early means you're less likely to experience delays.* Not a morning person? The last American Airlines flight from DFW to STL departs at 9:10PM UTC-6 and touches down at 10:56PM UTC-6.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.