The flight distance from Sihanoukville International Airport (KOS) in Sihanukville, Cambodia to Henri Coanda International Airport (OTP) in Bucharest, Romania is 8,200 kilometers (5,095 miles / 4,428 nautical miles). The estimated flight time for this route is approximately 11h, flying northwest at a heading of 314°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

This is an international route connecting Cambodia with Romania. It is an intercontinental flight between Asia and Europe. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 04:04 in Sihanukville, it's 23:04 in Bucharest. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Bucharest (OTP) to Sihanukville (KOS) follows a heading of 91° (east). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Sihanoukville International Airport (KOS) and Henri Coanda International Airport (OTP) detail pages, or use our flight duration calculator to compare other routes.