$43 Cheap Southwest Airlines flights Las Vegas (LAS) to Dallas (DAL)

Grab cheap round-trip Southwest Airlines flights from $85 from LAS to DAL by sorting your results from "Price (lowest to highest)" on Expedia. Or search for options from $43 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.

To find cheap Southwest Airlines fares from Harry Reid Intl. Airport (LAS) to Love Field Airport (DAL), start searching one to three months before your intended departure. Securing 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 what you pay. Sunday tends to be 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.

The earliest flight from LAS to DAL with Southwest Airlines leaves at 5:20AM UTC-8. You'll touch down at 9:55AM UTC-6. The final Southwest Airlines flight of the day leaves at 6:30PM UTC-8 and arrives at 11:05PM UTC-6. With 20% fewer cancellations for early and mid-morning flights, beginning your travel day early is often the best option.**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.