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ONQ to USM: distance & flight time
Zonguldak (Zonguldak Airport) → Ko Samui (Samui Airport)
4,646 mi
7,477 km · 4,037 nm
9h 35m
estimated nonstop flight time
+4h
time difference · heading east
See live ONQ→USM fares Phone-only fares on this route — call free
Flight time details
4,646 miles nonstop takes roughly 9h 35m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time gain when reading arrival times on your ticket.
The two airports
- ONQ — Zonguldak Airport · Zonguldak, Turkey
- USM — Samui Airport · Ko Samui, Thailand
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 USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
Frequently asked questions
How far is ONQ from USM?
The flight distance from Zonguldak (ONQ) to Ko Samui (USM) is 4,646 miles (7,477 km, 4,037 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONQ to USM?
A nonstop flight takes about 9h 35m 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 Ko Samui?
Ko Samui is 4 hours ahead of Zonguldak.
What is the cheapest way to fly from ONQ to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONQ–USM that never appear on search engines, with no booking fees.