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USN to STK: distance & flight time
Ulsan (Ulsan Airport) → Sterling (Sterling Municipal Airport)
6,202 mi
9,981 km · 5,389 nm
12h 38m
estimated nonstop flight time
-15h
time difference · heading northeast
See live USN→STK fares Phone-only fares on this route — call free
Flight time details
6,202 miles nonstop takes roughly 12h 38m 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
- USN — Ulsan Airport · Ulsan, South Korea
- STK — Sterling Municipal Airport · Sterling, 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 USN
- KPO · Pohang Airport (G-815/K-3)28 mi away
- PUS · Gimhae International Airport37 mi away
- TAE · Daegu Airport44 mi away
- CHF · Jinhae Airbase/Airport (G-813/K-10)48 mi away
Near STK
- AKO · Colorado Plains Regional Airport30 mi away
- SNY · Sidney Municipal-Lloyd W Carr Field37 mi away
- DEN · Denver International Airport91 mi away
- GXY · Greeley–Weld County Airport73 mi away
Frequently asked questions
How far is USN from STK?
The flight distance from Ulsan (USN) to Sterling (STK) is 6,202 miles (9,981 km, 5,389 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to STK?
A nonstop flight takes about 12h 38m 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 Ulsan and Sterling?
Sterling is 15 hours behind Ulsan.
What is the cheapest way to fly from USN to STK?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–STK that never appear on search engines, with no booking fees.