The flight distance from Kos Airport (KGS) in Kos Island, Greece to Sofia Airport (SOF) in Sofia, Bulgaria is 728 kilometers (453 miles / 393 nautical miles). The estimated flight time for this route is approximately 2h, flying north northwest at a heading of 336°.

This is a short-haul route typically served by narrow-body aircraft such as the Boeing 737 or Airbus A320 family. In-flight service is usually limited to drinks and light snacks.

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

Time zone information: When it's 23:11 in Kos Island, it's 23:11 in Sofia.

There is a significant elevation difference of 1,330 feet between the two airports. Sofia Airport sits higher than Kos Airport.

The return flight from Sofia (SOF) to Kos Island (KGS) follows a heading of 153° (south southeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

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