Need help booking?
Unpublished phone-only deals available
CWI to DUC: distance & flight time
Clinton (Clinton Municipal Airport) → Duncan (Halliburton Field)
656 mi
1,055 km · 570 nm
1h 54m
estimated nonstop flight time
Same time
time difference · heading southwest
See live CWI→DUC fares Phone-only fares on this route — call free
Flight time details
656 miles nonstop takes roughly 1h 54m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- CWI — Clinton Municipal Airport · Clinton, United States
- 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 CWI
- MLI · Quad City International Airport28 mi away
- DBQ · Dubuque Regional Airport44 mi away
- GBG · Galesburg Municipal Airport62 mi away
- IOW · Iowa City Municipal Airport64 mi away
Near DUC
Frequently asked questions
How far is CWI from DUC?
The flight distance from Clinton (CWI) to Duncan (DUC) is 656 miles (1,055 km, 570 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CWI to DUC?
A nonstop flight takes about 1h 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 cheapest way to fly from CWI to DUC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CWI–DUC that never appear on search engines, with no booking fees.