Need help booking?
Unpublished phone-only deals available
DUC to CND: distance & flight time
Duncan (Halliburton Field) → Constanta (Mihail Kogălniceanu International Airport)
6,038 mi
9,717 km · 5,247 nm
12h 18m
estimated nonstop flight time
+8h
time difference · heading northeast
See live DUC→CND fares Phone-only fares on this route — call free
Flight time details
6,038 miles nonstop takes roughly 12h 18m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- DUC — Halliburton Field · Duncan, United States
- CND — Mihail Kogălniceanu International Airport · Constanta, Romania
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 CND
- TCE · Tulcea Airport50 mi away
- VAR · Varna Airport85 mi away
- BBU · Băneasa International Airport118 mi away
- OTP · Henri Coandă International Airport119 mi away
Frequently asked questions
How far is DUC from CND?
The flight distance from Duncan (DUC) to Constanta (CND) is 6,038 miles (9,717 km, 5,247 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DUC to CND?
A nonstop flight takes about 12h 18m 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 Duncan and Constanta?
Constanta is 8 hours ahead of Duncan.
What is the cheapest way to fly from DUC to CND?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DUC–CND that never appear on search engines, with no booking fees.