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USN to GSO: distance & flight time
Ulsan (Ulsan Airport) → Greensboro (Piedmont Triad International Airport)
7,138 mi
11,487 km · 6,203 nm
14h 28m
estimated nonstop flight time
-13h
time difference · heading northeast
See live USN→GSO fares Phone-only fares on this route — call free
Flight time details
7,138 miles nonstop takes roughly 14h 28m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- GSO — Piedmont Triad International Airport · Greensboro, 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 GSO
- INT · Smith Reynolds Airport16 mi away
- CLT · Charlotte Douglas International Airport83 mi away
- DAN · Danville Regional Airport47 mi away
- SVH · Statesville Regional Airport61 mi away
Frequently asked questions
How far is USN from GSO?
The flight distance from Ulsan (USN) to Greensboro (GSO) is 7,138 miles (11,487 km, 6,203 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to GSO?
A nonstop flight takes about 14h 28m 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 Greensboro?
Greensboro is 13 hours behind Ulsan.
What is the cheapest way to fly from USN to GSO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–GSO that never appear on search engines, with no booking fees.