The flight distance from Sofia Airport (SOF) in Sofia, Bulgaria to Ulsan Airport (USN) in Ulsan, South Korea is 8,525 kilometers (5,297 miles / 4,603 nautical miles). The estimated flight time for this route is approximately 11h, flying northeast at a heading of 53°.

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 Bulgaria with South Korea. It is an intercontinental flight between Europe and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 01:30 in Sofia, it's 08:30 in Ulsan. With a 7-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 1,697 feet between the two airports. Ulsan Airport sits lower than Sofia Airport.

The return flight from Ulsan (USN) to Sofia (SOF) follows a heading of 313° (northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Sofia Airport (SOF) and Ulsan Airport (USN) detail pages, or use our flight duration calculator to compare other routes.