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CYS to FSI: distance & flight time
Cheyenne (Cheyenne Regional Jerry Olson Field) → Fort Sill (Henry Post Army Air Field (Fort Sill))
569 mi
916 km · 494 nm
1h 42m
estimated nonstop flight time
+1h
time difference · heading southeast
See live CYS→FSI fares Phone-only fares on this route — call free
Flight time details
569 miles nonstop takes roughly 1h 42m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- CYS — Cheyenne Regional Jerry Olson Field · Cheyenne, United States
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near CYS
- LAR · Laramie Regional Airport46 mi away
- DEN · Denver International Airport90 mi away
- FNL · Northern Colorado Regional Airport50 mi away
- GXY · Greeley–Weld County Airport51 mi away
Near FSI
- LAW · Lawton Fort Sill Regional Airport6 mi away
- DUC · Halliburton Field28 mi away
- HBR · Hobart Regional Airport44 mi away
- SPS · Sheppard Air Force Base-Wichita Falls Municipal Airport46 mi away
Frequently asked questions
How far is CYS from FSI?
The flight distance from Cheyenne (CYS) to Fort Sill (FSI) is 569 miles (916 km, 494 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CYS to FSI?
A nonstop flight takes about 1h 42m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from CYS to FSI?
Nonstop service on CYS–FSI depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 42m nonstop estimate.
What is the time difference between Cheyenne and Fort Sill?
Fort Sill is 1 hour ahead of Cheyenne.
What is the cheapest way to fly from CYS to FSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CYS–FSI that never appear on search engines, with no booking fees.
Why are some CYS to FSI fares phone-only?
Consolidator contracts let us sell certain CYS–FSI tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.