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ONQ to APA: distance & flight time
Zonguldak (Zonguldak Airport) → Denver (Centennial Airport)
6,217 mi
10,005 km · 5,402 nm
12h 39m
estimated nonstop flight time
-9h
time difference · heading northwest
See live ONQ→APA fares Phone-only fares on this route — call free
Flight time details
6,217 miles nonstop takes roughly 12h 39m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- ONQ — Zonguldak Airport · Zonguldak, Turkey
- APA — Centennial Airport · Denver, 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 ONQ
- KFS · Kastamonu Airport89 mi away
- ESB · Esenboğa International Airport106 mi away
- ANK · Etimesgut Air Base112 mi away
- KCO · Cengiz Topel Airport117 mi away
Near APA
- DEN · Denver International Airport22 mi away
- BFK · Buckley Air Force Base10 mi away
- BJC · Rocky Mountain Metropolitan Airport27 mi away
- WBU · Boulder Municipal Airport38 mi away
Frequently asked questions
How far is ONQ from APA?
The flight distance from Zonguldak (ONQ) to Denver (APA) is 6,217 miles (10,005 km, 5,402 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONQ to APA?
A nonstop flight takes about 12h 39m 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 Zonguldak and Denver?
Denver is 9 hours behind Zonguldak.
What is the cheapest way to fly from ONQ to APA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONQ–APA that never appear on search engines, with no booking fees.