Distance From Allen C Perkinson Blackstone Army Air Field to Sofia Airport, BKT - SOF Distance

The distance from Allen C Perkinson Blackstone Army Air Field (BKT) to Sofia Airport (SOF) is 5041 miles or 8112 kilometers or 4377 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Blackstone ( United States ) to Sofia ( Bulgaria )?

A one-way nonstop (direct) flight between Blackstone and Sofia takes around 11 hours 35 minutes.

Estimated flight time from Allen C Perkinson Blackstone Army Air Field, Blackstone, United States to Sofia Airport, Sofia, Bulgaria is 11 hours 35 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • BKT - SOF

Kilometers		8112 km
Statute Miles		5041 miles
Nautical Miles		4377 nm
Avg. Time of Flight		11 hours 35 minutes

Allen C Perkinson Blackstone Army Air Field to Sofia Airport Flight Route Map - BKT to SOF Flight Path

Location of Allen C Perkinson Blackstone Army Air Field & Sofia Airport is given below.
Click the map to view Blackstone to Sofia nonstop flight path and travel direction.

Click to see flight route on Google Map between Blackstone, United States and Sofia, Bulgaria. .

Nonstop flight route between Blackstone, United States and Sofia, Bulgaria.

Time Difference Between the Airports • BKT - SOF

Time difference between Blackstone (United States) and Sofia (Bulgaria) is 7 Hours.
Sofia time is 7 Hours ahead of Blackstone.

Location	Local Time
Blackstone (United States)	2026-06-19, 07:24:24 EDT
Sofia (Bulgaria)	2026-06-19, 14:24:24 EEST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Allen C Perkinson Blackstone Army Air Field (BKT / KBKT) Blackstone, United States

Destination

Sofia Airport (SOF / LBSF) Sofia, Bulgaria