$77 Cheap Southwest Airlines flights Dallas (DAL) to St. Louis (STL)

Grab cheap return Southwest Airlines flights from $143 from DAL to STL by sorting your results from “Price (lowest to highest)” on Expedia. Or look for deals from $77 for a one-way journey.**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.

January is one of the least expensive months to fly to St. Louis with Southwest Airlines. You could also find fantastic deals on one-way and return fares in February.

Start searching one to three months ahead of your departure date to score cheaper fares on Southwest Airlines flights from Love Field Airport (DAL) to Lambert-St. Louis Intl. Airport (STL). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get the timing right, and you can enjoy significant savings on domestic journeys.*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.

You can easily fly from Love Field Airport (DAL) to Lambert-St. Louis Intl. Airport (STL) on one of Southwest Airlines’s 39 direct weekly flights. Apply Expedia’s “Nonstop” and “Airline” filters to find the Southwest Airlines flight that’ll land at STL at your preferred time.

Depart Love Field Airport (DAL) for Lambert-St. Louis Intl. Airport (STL) on a direct Southwest Airlines flight, and you’ll be in the skies for around 1h 39m.

If it’s flexibility you’re after, Tuesday offers the most choice for Southwest Airlines flights from Love Field Airport (DAL) to Lambert-St. Louis Intl. Airport (STL). Take your pick of 6 different departures.

Setting off from DAL at 6:00AM UTC-6, the first Southwest Airlines flight to STL lands at 7:40AM UTC-6. Traveling early means you’ll be less likely to experience cancellations.* Not a morning person? The last Southwest Airlines flight from DAL to STL departs at 9:10PM UTC-6 and touches down at 10:45PM 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.

Lambert-St. Louis Intl. Airport (STL) is the primary St. Louis hub for Southwest Airlines flights from Love Field Airport (DAL).

Southwest Airlines generally uses Boeing 737-700 planes for flights from Love Field Airport (DAL) to Lambert-St. Louis Intl. Airport (STL). This airline also operates the Boeing 737-800 on this route. Remember that aircraft type can change due to operational needs, so the plane you catch could be different when you leave.

Changes are generally free within 24 hours of making a booking, but your airline may add a charge after that. For more details about modifying your reservation, head to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to change your itinerary without additional charges, apply the “Changes included” or “No cancel fee” filter when planning your next getaway.