Distance From Darby Airport to Sofia Airport

The distance from Darby Airport () to Sofia Airport (SOF) is 5117 miles or 8234 kilometers or 4444 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 Milford Center ( United States ) to Sofia ( Bulgaria )?

A one-way nonstop (direct) flight between Milford Center and Sofia takes around 11 hours 45 minutes.

Estimated flight time from Darby Airport, Milford Center, United States to Sofia Airport, Sofia, Bulgaria is 11 hours 45 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 • - SOF

Kilometers		8234 km
Statute Miles		5117 miles
Nautical Miles		4444 nm
Avg. Time of Flight		11 hours 45 minutes

Darby Airport to Sofia Airport Flight Route Map - to SOF Flight Path

Location of Darby Airport & Sofia Airport is given below.
Click the map to view Milford Center to Sofia nonstop flight path and travel direction.

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

Nonstop flight route between Milford Center, United States and Sofia, Bulgaria.

Time Difference Between the Airports • - SOF

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

Location	Local Time
Milford Center (United States)	2026-08-03, 04:08:34 EDT
Sofia (Bulgaria)	2026-08-03, 11:08:34 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

Darby Airport ( / OH93) Milford Center, United States

Destination

Sofia Airport (SOF / LBSF) Sofia, Bulgaria