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CND to USM: distance & flight time
Constanta (Mihail Kogălniceanu International Airport) → Ko Samui (Samui Airport)
4,850 mi
7,805 km · 4,215 nm
9h 59m
estimated nonstop flight time
+4h
time difference · heading east
See live CND→USM fares Phone-only fares on this route — call free
Flight time details
4,850 miles nonstop takes roughly 9h 59m 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
- CND — Mihail Kogălniceanu International Airport · Constanta, Romania
- 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 CND
- TCE · Tulcea Airport50 mi away
- VAR · Varna Airport85 mi away
- BBU · Băneasa International Airport118 mi away
- OTP · Henri Coandă International Airport119 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 CND from USM?
The flight distance from Constanta (CND) to Ko Samui (USM) is 4,850 miles (7,805 km, 4,215 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CND to USM?
A nonstop flight takes about 9h 59m 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 Constanta and Ko Samui?
Ko Samui is 4 hours ahead of Constanta.
What is the cheapest way to fly from CND to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CND–USM that never appear on search engines, with no booking fees.