Need help booking?
Unpublished phone-only deals available
CEZ to OSN: distance & flight time
Cortez (Cortez Municipal Airport) → Osan (Osan Air Base)
6,189 mi
9,960 km · 5,378 nm
12h 36m
estimated nonstop flight time
+15h
time difference · heading northwest
See live CEZ→OSN fares Phone-only fares on this route — call free
Flight time details
6,189 miles nonstop takes roughly 12h 36m 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
- CEZ — Cortez Municipal Airport · Cortez, United States
- OSN — Osan Air Base · Osan, 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 CEZ
- FMN · Four Corners Regional Airport45 mi away
- DRO · Durango La Plata County Airport49 mi away
- TEX · Telluride Regional Airport60 mi away
- GMV · Monument Valley Airport89 mi away
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
Frequently asked questions
How far is CEZ from OSN?
The flight distance from Cortez (CEZ) to Osan (OSN) is 6,189 miles (9,960 km, 5,378 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CEZ to OSN?
A nonstop flight takes about 12h 36m 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 Cortez and Osan?
Osan is 15 hours ahead of Cortez.
What is the cheapest way to fly from CEZ to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CEZ–OSN that never appear on search engines, with no booking fees.