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CYS to SSN: distance & flight time
Cheyenne (Cheyenne Regional Jerry Olson Field) → Seoul East (Seoul Air Base (K-16))
6,094 mi
9,807 km · 5,295 nm
12h 25m
estimated nonstop flight time
+15h
time difference · heading northwest
See live CYS→SSN fares Phone-only fares on this route — call free
Flight time details
6,094 miles nonstop takes roughly 12h 25m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- CYS — Cheyenne Regional Jerry Olson Field · Cheyenne, United States
- SSN — Seoul Air Base (K-16) · Seoul East, South Korea
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 SSN
- ICN · Incheon International Airport36 mi away
- SWU · Suwon Airport15 mi away
- GMP · Gimpo International Airport19 mi away
- OSN · Osan Air Base25 mi away
Frequently asked questions
How far is CYS from SSN?
The flight distance from Cheyenne (CYS) to Seoul East (SSN) is 6,094 miles (9,807 km, 5,295 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CYS to SSN?
A nonstop flight takes about 12h 25m 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 Seoul East?
Seoul East is 15 hours ahead of Cheyenne.
What is the cheapest way to fly from CYS to SSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CYS–SSN that never appear on search engines, with no booking fees.