The flight distance from Noi Bai International Airport (HAN) in Hanoi, Vietnam to Osan Air Base (OSN) in Osan Air Base, South Korea is 2,701 kilometers (1,678 miles / 1,458 nautical miles). The estimated flight time for this route is approximately 4h, flying northeast at a heading of 45°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

This is an international route connecting Vietnam with South Korea. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 02:02 in Hanoi, it's 04:02 in Osan Air Base.

The return flight from Osan Air Base (OSN) to Hanoi (HAN) follows a heading of 235° (southwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Noi Bai International Airport (HAN) and Osan Air Base (OSN) detail pages, or use our flight duration calculator to compare other routes.