Route guide

St. Louis to Las Vegas (STL-LAS): Nonstop Upgrade & Award Space

Frontier Airlines and Southwest Airlines fly the STL to LAS nonstop about 12 times a week. That's enough service to give you a real choice of departures, though premium seats don't sit unclaimed for long. 2LNR watches every STL to LAS departure for confirmed upgrade and award space and can alert you when a date you're tracking opens up.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

See STL to LAS on the interactive map Get started free
12
Nonstop flights a week
1,369 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every STL to LAS departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for St. Louis to Las Vegas to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each STL to LAS departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See STL to LAS on the interactive route map, with schedules, connections, and route statistics.

Airlines flying St. Louis to Las Vegas nonstop

Carriers operating STL to LAS nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • Frontier Airlines
  • Southwest Airlines
See STL to LAS on the interactive map →

Frequently asked questions about STL to LAS

How far is Las Vegas from St. Louis?
STL to LAS covers about 1,369 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from STL to LAS?
Frontier Airlines and Southwest Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on both of them.
How many flights a week are there from STL to LAS?
About 12 nonstop flights a week run between St. Louis and Las Vegas in the current schedule, operated by Frontier Airlines and Southwest Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on STL to LAS?
Open the STL to LAS calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the St. Louis to Las Vegas route, and 2LNR will notify you when space opens. It's free to start.

Never miss STL to LAS upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

Get started free