Direct (nonstop) flights from Saint Louis to Las Vegas
2 airlines fly nonstop from Saint Louis Airport (STL) to Harry Reid International Airport (LAS). It's 1,370 miles (2,205 km), about 3h 40m in the air. Operated by Frontier Airlines, Southwest Airlines.
Frontier Airlines
Southwest Airlines
Route data last updated: May 28, 2026
Airlines with non-stop flights
F9
Frontier Airlines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Saint Louis to Las Vegas with one stop · direct emits 232 kg CO₂ per passenger
Looking for the return flight?
LAS → STL: Flights from Las Vegas to Saint LouisOther direct flights from Saint Louis
Direct flights from Las Vegas (LAS)
Frequently Asked Questions
How long is the direct flight from Saint Louis to Las Vegas?
A nonstop flight from Saint Louis (STL) to Las Vegas (LAS) takes approximately 3 hours and 40 minutes. The distance is 1,370 miles (2,205 km).
Which airlines fly nonstop from Saint Louis to Las Vegas?
2 airlines: Frontier Airlines, Southwest Airlines.
Is there a nonstop flight from Saint Louis to Las Vegas?
Yes. 2 airlines: Frontier Airlines, Southwest Airlines.
How far is Saint Louis from Las Vegas?
The flight distance from Saint Louis to Las Vegas is 1,370 miles (2,205 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What type of aircraft flies from Saint Louis to Las Vegas?
At 3h 40m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Saint Louis to Las Vegas?
Roughly 232 kg CO2 per passenger one-way. That's about the same as driving 1,160 km.
Is the return flight from Las Vegas to Saint Louis also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Saint Louis to Las Vegas?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Saint Louis Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.