Need help booking?
Unpublished phone-only deals available
SLD to DUC: distance & flight time
Sliac (Sliač Airport) → Duncan (Halliburton Field)
5,515 mi
8,876 km · 4,793 nm
11h 17m
estimated nonstop flight time
-7h
time difference · heading northwest
See live SLD→DUC fares Phone-only fares on this route — call free
Flight time details
5,515 miles nonstop takes roughly 11h 17m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- SLD — Sliač Airport · Sliac, Slovakia
- 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 SLD
- ILZ · Žilina Airport47 mi away
- TAT · Poprad-Tatry Airport59 mi away
- PZY · Piešťany Airport60 mi away
- UHE · Kunovice Airport82 mi away
Near DUC
Frequently asked questions
How far is SLD from DUC?
The flight distance from Sliac (SLD) to Duncan (DUC) is 5,515 miles (8,876 km, 4,793 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SLD to DUC?
A nonstop flight takes about 11h 17m 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 SLD to DUC?
Nonstop service on SLD–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 11h 17m nonstop estimate.
What is the time difference between Sliac and Duncan?
Duncan is 7 hours behind Sliac.
What is the cheapest way to fly from SLD to DUC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SLD–DUC that never appear on search engines, with no booking fees.
Why are some SLD to DUC fares phone-only?
Consolidator contracts let us sell certain SLD–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.