Frontier AirlinesDepart15:04
Sat, Nov 21STL → CYS
3h 21m · 1 stop
$433one way, per person
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- Cheapest fare
- $433
- Cheapest month
- November
- Direct flights
- Not recently
- Quickest trip
- 3h 21m
Frontier Airlines · Sat, Nov 21
from $433
Usually 1+ stop
1,280 km
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Cheapest month to fly from St Louis to Cheyenne
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.
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About flights from St Louis to Cheyenne
St Louis (STL) and Cheyenne (CYS) are about 1,280 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 3h 21m. Over the next few months, one-way fares start from $433, 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 Cheyenne?
The cheapest one-way fare we've seen recently is $433 with Frontier Airlines, departing Saturday, November 21, 2026.
What is the cheapest month to fly from St Louis to Cheyenne?
November 2026 currently has the lowest fares, from $433 one way.
Are there direct flights from St Louis to Cheyenne?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from St Louis to Cheyenne?
The quickest journey we've seen takes about 3h 21m. St Louis and Cheyenne are around 1,280 km apart.
Which airlines fly from St Louis to Cheyenne?
Recent fares on this route were with Frontier Airlines.
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