Need help booking?
Unpublished phone-only deals available
OSN to MTJ: distance & flight time
Osan (Osan Air Base) → Montrose CO (Montrose Regional Airport)
6,152 mi
9,900 km · 5,346 nm
12h 32m
estimated nonstop flight time
-15h
time difference · heading northeast
See live OSN→MTJ fares Phone-only fares on this route — call free
Flight time details
6,152 miles nonstop takes roughly 12h 32m 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
- MTJ — Montrose Regional Airport · Montrose CO, 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 MTJ
- TEX · Telluride Regional Airport38 mi away
- GUC · Gunnison Crested Butte Regional Airport52 mi away
- GJT · Grand Junction Regional Airport54 mi away
- RIL · Garfield County Regional Airport71 mi away
Frequently asked questions
How far is OSN from MTJ?
The flight distance from Osan (OSN) to Montrose CO (MTJ) is 6,152 miles (9,900 km, 5,346 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to MTJ?
A nonstop flight takes about 12h 32m 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 Montrose CO?
Montrose CO is 15 hours behind Osan.
What is the cheapest way to fly from OSN to MTJ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–MTJ that never appear on search engines, with no booking fees.