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CYS to SDY: distance & flight time
Cheyenne (Cheyenne Regional Jerry Olson Field) → Sidney (Sidney - Richland Regional Airport)
454 mi
730 km · 394 nm
1h 27m
estimated nonstop flight time
Same time
time difference · heading north
See live CYS→SDY fares Phone-only fares on this route — call free
Flight time details
454 miles nonstop takes roughly 1h 27m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- CYS — Cheyenne Regional Jerry Olson Field · Cheyenne, United States
- SDY — Sidney - Richland Regional Airport · Sidney, 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 SDY
- ISN · Sloulin Field International Airport41 mi away
- GDV · Dawson Community Airport49 mi away
- OLF · L M Clayton Airport69 mi away
- DIK · Dickinson Theodore Roosevelt Regional Airport91 mi away
Frequently asked questions
How far is CYS from SDY?
The flight distance from Cheyenne (CYS) to Sidney (SDY) is 454 miles (730 km, 394 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CYS to SDY?
A nonstop flight takes about 1h 27m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from CYS to SDY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CYS–SDY that never appear on search engines, with no booking fees.