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GSO to OSN: distance & flight time
Greensboro (Piedmont Triad International Airport) → Osan (Osan Air Base)
7,093 mi
11,415 km · 6,164 nm
14h 22m
estimated nonstop flight time
+14h
time difference · heading north
See live GSO→OSN fares Phone-only fares on this route — call free
Flight time details
7,093 miles nonstop takes roughly 14h 22m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- GSO — Piedmont Triad International Airport · Greensboro, 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 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
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 GSO from OSN?
The flight distance from Greensboro (GSO) to Osan (OSN) is 7,093 miles (11,415 km, 6,164 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GSO to OSN?
A nonstop flight takes about 14h 22m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from GSO to OSN?
Nonstop service on GSO–OSN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 14h 22m nonstop estimate.
What is the time difference between Greensboro and Osan?
Osan is 14 hours ahead of Greensboro.
What is the cheapest way to fly from GSO to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GSO–OSN that never appear on search engines, with no booking fees.
Why are some GSO to OSN fares phone-only?
Consolidator contracts let us sell certain GSO–OSN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.