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OKO to DUC: distance & flight time
Yokota (Yokota Air Base) → Duncan (Halliburton Field)
6,340 mi
10,203 km · 5,509 nm
12h 54m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OKO→DUC fares Phone-only fares on this route — call free
Flight time details
6,340 miles nonstop takes roughly 12h 54m 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
- OKO — Yokota Air Base · Yokota, Japan
- 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 OKO
- HND · Tokyo Haneda International Airport28 mi away
- NRT · Narita International Airport58 mi away
- NJA · Atsugi Naval Air Facility21 mi away
- IBR · Hyakuri Airport67 mi away
Near DUC
Frequently asked questions
How far is OKO from DUC?
The flight distance from Yokota (OKO) to Duncan (DUC) is 6,340 miles (10,203 km, 5,509 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OKO to DUC?
A nonstop flight takes about 12h 54m 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 Yokota and Duncan?
Duncan is 14 hours behind Yokota.
What is the cheapest way to fly from OKO to DUC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OKO–DUC that never appear on search engines, with no booking fees.