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CYS to ONT: distance & flight time
Cheyenne (Cheyenne Regional Jerry Olson Field) → Ontario (Ontario International Airport)
853 mi
1,373 km · 742 nm
2h 19m
estimated nonstop flight time
-1h
time difference · heading southwest
See live CYS→ONT fares Phone-only fares on this route — call free
Flight time details
853 miles nonstop takes roughly 2h 19m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- CYS — Cheyenne Regional Jerry Olson Field · Cheyenne, United States
- ONT — Ontario International Airport · Ontario, 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 ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Frequently asked questions
How far is CYS from ONT?
The flight distance from Cheyenne (CYS) to Ontario (ONT) is 853 miles (1,373 km, 742 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CYS to ONT?
A nonstop flight takes about 2h 19m 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 time difference between Cheyenne and Ontario?
Ontario is 1 hour behind Cheyenne.
What is the cheapest way to fly from CYS to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CYS–ONT that never appear on search engines, with no booking fees.