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USN to DEC: distance & flight time
Ulsan (Ulsan Airport) → Decatur (Decatur Airport)
6,686 mi
10,760 km · 5,810 nm
13h 35m
estimated nonstop flight time
-14h
time difference · heading northeast
See live USN→DEC fares Phone-only fares on this route — call free
Flight time details
6,686 miles nonstop takes roughly 13h 35m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- DEC — Decatur Airport · Decatur, 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
Frequently asked questions
How far is USN from DEC?
The flight distance from Ulsan (USN) to Decatur (DEC) is 6,686 miles (10,760 km, 5,810 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to DEC?
A nonstop flight takes about 13h 35m 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 Decatur?
Decatur is 14 hours behind Ulsan.
What is the cheapest way to fly from USN to DEC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–DEC that never appear on search engines, with no booking fees.