$99 Find Cheap Southwest Flights from St. Louis to Las Vegas

When to Book Flights with Southwest from St. Louis to Las Vegas

• How far in advance should I book tickets for a flight with Southwest from St. Louis to Las Vegas?

  Generally, when trying to get a below average price for your ticket, try to book around 12 days before departure. For the cheapest possible price, our data suggests booking 56 days before departure.

• Is Southwest the cheapest airline to fly with from St. Louis to Las Vegas?

  With an average price of $477 return, Southwest is not the cheapest airline to fly from St. Louis to Las Vegas with. Instead, for the lowest price, our data suggests flying with Spirit Airlines, where a return flight costs $210 on average.

• What is the cheapest Southwest flight from St. Louis to Las Vegas?

  In the last 3 days, the lowest price for a flight with Southwest from St. Louis to Las Vegas was $137 for a return flight and $69 for a one-way flight.

• Does Southwest fly direct to Las Vegas from St. Louis?

  Yes, Southwest does offer direct flights for the route, with around 39 flights per week.

• What’s the cheapest day of the week to fly from St. Louis to Las Vegas with Southwest?

  On average, the cheapest day of the week to fly from St. Louis to Las Vegas with Southwest is Wednesday, when prices are around $137. The most expensive day is generally Saturday, where the average price is around $202.

• What’s the cheapest month to fly from St. Louis to Las Vegas with Southwest?

  The cheapest month for Southwest flights to Las Vegas from St. Louis is generally June, where plane tickets cost $218 on average. If possible, try to avoid the most expensive months of December and October, where tickets cost $388 and $509 respectively.