$149 Cheap Southwest Airlines flights Burbank (BUR) to St. Louis (STL)

Finding cheap one-way Southwest Airlines flights from BUR to STL from $149 on Expedia is easy — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $297 for your next exciting adventure.**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.

Look for affordable Southwest Airlines flights from Bob Hope Airport (BUR) to Lambert-St. Louis Intl. Airport (STL) one to three months prior to your 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. No matter the fare class and itinerary, the ideal day to book a domestic flight is generally Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel 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.

The first flight from BUR to STL with Southwest Airlines leaves at 8:20AM UTC-8. You'll land at 1:45PM UTC-6. The last Southwest Airlines flight of the day takes off at 8:20AM UTC-8 and arrives at 1:45PM UTC-6. With 20% fewer cancellations for early and mid-morning departures, jetting out early is typically the best way to go.**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.