The distance from Boulder Junction Payzer Airport () to Sofia Airport (SOF) is 5056 miles or 8137 kilometers or 4391 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.
8137 kilometers is the direct flight distance between Boulder Junction Payzer Airport (United States) and Sofia Airport (Bulgaria).
How long does it take to travel from Boulder Junction ( United States ) to Sofia ( Bulgaria )?
A one-way nonstop (direct) flight between Boulder Junction and Sofia takes around 11 hours 37 minutes.
Estimated
flight time from Boulder Junction Payzer Airport, Boulder Junction, United States to Sofia Airport, Sofia, Bulgaria is
11 hours 37 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 | | 8137 km |
| Statute Miles | | 5056 miles |
| Nautical Miles | | 4391 nm |
| Avg. Time of Flight | | 11 hours 37 minutes |
Boulder Junction Payzer Airport to Sofia Airport Flight Route Map - to SOF Flight Path
Location of Boulder Junction Payzer Airport & Sofia Airport is given below.
Click the map to view Boulder Junction to Sofia nonstop flight path and travel direction.
Click to see flight route on Google Map between Boulder Junction, United States and Sofia, Bulgaria. .
Nonstop flight route between Boulder Junction, United States and Sofia, Bulgaria.
Time Difference Between the Airports • - SOF
Time difference between
Boulder Junction (United States) and
Sofia (Bulgaria) is 8 Hours.
Sofia time is 8 Hours ahead of Boulder Junction.
| Location | Local Time |
| Boulder Junction (United States) | 2025-12-15, 03:23:40 CST |
| Sofia (Bulgaria) | 2025-12-15, 11:23:40 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.