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OSN to CYS: distance & flight time
Osan (Osan Air Base) → Cheyenne (Cheyenne Regional Jerry Olson Field)
6,116 mi
9,843 km · 5,315 nm
12h 28m
estimated nonstop flight time
-15h
time difference · heading northeast
See live OSN→CYS fares Phone-only fares on this route — call free
Flight time details
6,116 miles nonstop takes roughly 12h 28m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- CYS — Cheyenne Regional Jerry Olson Field · Cheyenne, 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 OSN
- ICN · Incheon International Airport41 mi away
- SWU · Suwon Airport10 mi away
- SSN · Seoul Air Base (K-16)25 mi away
- GMP · Gimpo International Airport35 mi away
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
Frequently asked questions
How far is OSN from CYS?
The flight distance from Osan (OSN) to Cheyenne (CYS) is 6,116 miles (9,843 km, 5,315 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to CYS?
A nonstop flight takes about 12h 28m 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 Osan and Cheyenne?
Cheyenne is 15 hours behind Osan.
What is the cheapest way to fly from OSN to CYS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–CYS that never appear on search engines, with no booking fees.