The flight distance from Osan Air Base (OSN) in Osan Air Base, South Korea to Singapore Changi International Airport (SIN) in Singapore, Singapore is 4,623 kilometers (2,873 miles / 2,496 nautical miles). The estimated flight time for this route is approximately 6h, flying southwest at a heading of 216°.

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 South Korea with Singapore. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 19:43 in Osan Air Base, it's 18:43 in Singapore.

The return flight from Singapore (SIN) to Osan Air Base (OSN) follows a heading of 28° (north northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

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