St Louis to Las Vegas (STL → LAS). We are tracking 6 fares on this route.
Cheapest tracked fare $79 · typical price $116 · you save about $37 (32%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
Frontier Airlines
2026-11-21
Direct
$79
Frontier Airlines
2026-11-26
Direct
$82
Frontier Airlines
2026-10-26
Direct
$95
Frontier Airlines
2026-11-09
1 stop
$96
—
2026-11-14
1 stop
$104
Frontier Airlines
2027-01-07
Direct
$108
Could you save more?
The airport you were going to fly from is often not the cheapest one. Compare every airport in a region against each other, or check whether a multi-day stopover beats the direct fare.
How cheap can flights from St Louis to Las Vegas get?
The cheapest fare we have tracked on this route is $79, compared with a typical $116 for a trip of this distance.
Is it cheaper to fly to Las Vegas from a different airport?
Often, yes. Fares out of secondary airports are frequently cheaper than the obvious hub, but they are the ones most likely to be missing from a normal search. Our reverse search compares every airport in a region against each other so the cheaper departure point is not hidden.
Could a stopover make St Louis to Las Vegas cheaper?
Sometimes. On thin long-haul routes a two-leg trip with a multi-day stopover can beat the direct fare, and occasionally a direct fare is not sold at all. Our detour search prices those routings against the direct flight.