Distance From Udon Thani Airport to Sofia Airport, UTH - SOF Distance

The distance from Udon Thani Airport (UTH) to Sofia Airport (SOF) is 4879 miles or 7852 kilometers or 4237 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 Udon Thani ( Thailand ) to Sofia ( Bulgaria )?

A one-way nonstop (direct) flight between Udon Thani and Sofia takes around 11 hours 13 minutes.

Estimated flight time from Udon Thani Airport, Udon Thani, Thailand to Sofia Airport, Sofia, Bulgaria is 11 hours 13 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 • UTH - SOF

Kilometers		7852 km
Statute Miles		4879 miles
Nautical Miles		4237 nm
Avg. Time of Flight		11 hours 13 minutes

Udon Thani Airport to Sofia Airport Flight Route Map - UTH to SOF Flight Path

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

Click to see flight route on Google Map between Udon Thani, Thailand and Sofia, Bulgaria. .

Nonstop flight route between Udon Thani, Thailand and Sofia, Bulgaria.

Time Difference Between the Airports • UTH - SOF

Time difference between Udon Thani (Thailand) and Sofia (Bulgaria) is 4 Hours.
Sofia time is 4 Hours behind Udon Thani.

Location	Local Time
Udon Thani (Thailand)	2026-09-13, 21:08:13 +07
Sofia (Bulgaria)	2026-09-13, 17:08:13 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

Udon Thani Airport (UTH / VTUD) Udon Thani, Thailand

Destination

Sofia Airport (SOF / LBSF) Sofia, Bulgaria