Frontier AirlinesDepart17:15
Sat, Nov 21STL → LAS
3h 44m · Direct
$112one way, per person
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- Cheapest fare
- $112
- Cheapest month
- November
- Direct flights
- Yes
- Flight time
- 3h 44m
Frontier Airlines · Sat, Nov 21
from $112
Frontier Airlines
2,210 km
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Cheapest month to fly from St Louis to Las Vegas
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in November 2026
The lowest fares we've seen for each day, cheapest first.
See every date in November 2026 →Plan the rest of your trip to Las Vegas
Where to stay, what to do and getting around, from our travel partners.
About flights from St Louis to Las Vegas
St Louis (STL) and Las Vegas (LAS) are about 2,210 km apart. Direct flights take around 3h 44m, and recent direct fares were with Frontier Airlines. Over the next few months, one-way fares start from $112, and November 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from St Louis to Las Vegas?
The cheapest one-way fare we've seen recently is $112 with Frontier Airlines, departing Saturday, November 21, 2026.
What is the cheapest month to fly from St Louis to Las Vegas?
November 2026 currently has the lowest fares, from $112 one way.
Are there direct flights from St Louis to Las Vegas?
Yes. Recent direct fares were with Frontier Airlines.
How long is the flight from St Louis to Las Vegas?
A direct flight takes about 3h 44m. St Louis and Las Vegas are around 2,210 km apart.
Which airlines fly from St Louis to Las Vegas?
Recent fares on this route were with Frontier Airlines.
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