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ICN to DUC: distance & flight time
Seoul (Incheon International Airport) → Duncan (Halliburton Field)
6,707 mi
10,794 km · 5,828 nm
13h 37m
estimated nonstop flight time
-14h
time difference · heading northeast
See live ICN→DUC fares Phone-only fares on this route — call free
Flight time details
6,707 miles nonstop takes roughly 13h 37m 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
- ICN — Incheon International Airport · Seoul, South Korea
- DUC — Halliburton Field · Duncan, 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 ICN
- GMP · Gimpo International Airport20 mi away
- SWU · Suwon Airport34 mi away
- SSN · Seoul Air Base (K-16)36 mi away
- OSN · Osan Air Base41 mi away
Near DUC
Frequently asked questions
How far is ICN from DUC?
The flight distance from Seoul (ICN) to Duncan (DUC) is 6,707 miles (10,794 km, 5,828 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ICN to DUC?
A nonstop flight takes about 13h 37m 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 ICN to DUC?
Nonstop service on ICN–DUC 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 13h 37m nonstop estimate.
What is the time difference between Seoul and Duncan?
Duncan is 14 hours behind Seoul.
What is the cheapest way to fly from ICN to DUC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ICN–DUC that never appear on search engines, with no booking fees.
Why are some ICN to DUC fares phone-only?
Consolidator contracts let us sell certain ICN–DUC 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.