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DUC to CYI: distance & flight time
Duncan (Halliburton Field) → Chiayi (Chiayi Airport)
7,709 mi
12,407 km · 6,699 nm
15h 35m
estimated nonstop flight time
+13h
time difference · heading northwest
See live DUC→CYI fares Phone-only fares on this route — call free
Flight time details
7,709 miles nonstop takes roughly 15h 35m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- DUC — Halliburton Field · Duncan, United States
- CYI — Chiayi Airport · Chiayi, Taiwan
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 DUC
Near CYI
- TNN · Tainan Airport37 mi away
- MZG · Makung Airport49 mi away
- PIF · Pingtung North Airport53 mi away
- TXG · Taichung Airport53 mi away
Frequently asked questions
How far is DUC from CYI?
The flight distance from Duncan (DUC) to Chiayi (CYI) is 7,709 miles (12,407 km, 6,699 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DUC to CYI?
A nonstop flight takes about 15h 35m 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 DUC to CYI?
Nonstop service on DUC–CYI 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 15h 35m nonstop estimate.
What is the time difference between Duncan and Chiayi?
Chiayi is 13 hours ahead of Duncan.
What is the cheapest way to fly from DUC to CYI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DUC–CYI that never appear on search engines, with no booking fees.
Why are some DUC to CYI fares phone-only?
Consolidator contracts let us sell certain DUC–CYI 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.