Distance From Vance Brand Airport to Sofia Airport

The distance from Vance Brand Airport () to Sofia Airport (SOF) is 5873 miles or 9452 kilometers or 5100 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.

---

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

A one-way nonstop (direct) flight between Longmont and Sofia takes around 13 hours 30 minutes.

Estimated flight time from Vance Brand Airport, Longmont, United States to Sofia Airport, Sofia, Bulgaria is 13 hours 30 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		9452 km
Statute Miles		5873 miles
Nautical Miles		5100 nm
Avg. Time of Flight		13 hours 30 minutes

Vance Brand Airport to Sofia Airport Flight Route Map - to SOF Flight Path

Location of Vance Brand Airport & Sofia Airport is given below.
Click the map to view Longmont to Sofia nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • - SOF

Time difference between Longmont (United States) and Sofia (Bulgaria) is 9 Hours.
Sofia time is 9 Hours ahead of Longmont.

Location	Local Time
Longmont (United States)	2025-12-17, 23:38:35 MST
Sofia (Bulgaria)	2025-12-18, 08:38:35 EET

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

Vance Brand Airport ( / KLMO) Longmont, United States

Destination

Sofia Airport (SOF / LBSF) Sofia, Bulgaria