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SDF to DUC: distance & flight time
Louisville (Louisville International Standiford Field) → Duncan (Halliburton Field)
726 mi
1,169 km · 631 nm
2h 3m
estimated nonstop flight time
-1h
time difference · heading west
See live SDF→DUC fares Phone-only fares on this route — call free
Flight time details
726 miles nonstop takes roughly 2h 3m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- SDF — Louisville International Standiford Field · Louisville, 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 SDF
- LOU · Bowman Field5 mi away
- FTK · Godman Army Air Field22 mi away
- FFT · Capital City Airport45 mi away
- LEX · Blue Grass Airport62 mi away
Near DUC
Frequently asked questions
How far is SDF from DUC?
The flight distance from Louisville (SDF) to Duncan (DUC) is 726 miles (1,169 km, 631 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SDF to DUC?
A nonstop flight takes about 2h 3m 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 Louisville and Duncan?
Duncan is 1 hour behind Louisville.
What is the cheapest way to fly from SDF to DUC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SDF–DUC that never appear on search engines, with no booking fees.