The flight distance from Allen Army Air Field (BIG) in Delta Junction Ft Greely, United States to Sofia Airport (SOF) in Sofia, Bulgaria is 8,112 kilometers (5,041 miles / 4,380 nautical miles). The estimated flight time for this route is approximately 11h, flying north at a heading of 8°.

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 United States with Bulgaria. It is an intercontinental flight between North America and Europe. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 03:11 in Delta Junction Ft Greely, it's 14:11 in Sofia. With a 11-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

The return flight from Sofia (SOF) to Delta Junction Ft Greely (BIG) follows a heading of 355° (north). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

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