$138 Cheap Delta flights St. Louis (STL) to Dallas (DAL)

Apply the “Price (lowest to highest)” filter on Expedia to look for cheap Delta Air Lines return flights from $275 from STL to DAL. Affordable one-way tickets from $138 are available as well.**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.

Delta Air Lines flights to Dallas tend to be more affordable in the low-season months of February and January. Whether you’re searching for a one-way or round-trip ticket, you could score a better deal then.

Search for affordable Delta Air Lines flights from Lambert-St. Louis Intl. Airport (STL) to Love Field Airport (DAL) one to three months before your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and journey, the best day of the week to book a domestic flight is generally Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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.

To see if there’s a direct trip from STL to DAL with Delta Air Lines or other airlines, check the “Nonstop” box when searching for tickets.

To find the earliest departures from STL to DAL with Delta Air Lines, filter your search by “Morning” and “Early Morning.” Choosing an early flight usually means cancellations are less likely.**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.

Love Field Airport (DAL) is the main Dallas hub for Delta Air Lines flights from Lambert-St. Louis Intl. Airport (STL).

Delta Air Lines makes traveling from STL to DAL more comfortable with a rewarding loyalty program and an excellent in-flight experience. You may even earn points with Delta SkyMiles. Make sure you sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are generally free within 24 hours of making a booking, but your airline may charge you after that time. For more details about altering your reservation, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to change your plans without being charged, check the “Changes included” and “No cancel fee” filters when planning your next trip.