Direct (nonstop) flights from Athens to Sofia
3 airlines fly nonstop from Athens International Airport (ATH) to Sofia Airport (SOF). It's 329 miles (529 km), about 1h 15m in the air. Operated by Aegean Airlines, Bulgaria Air, Sky Express.
Aegean Airlines
Bulgaria Air
Sky Express
Route data last updated: May 28, 2026
Airlines with non-stop flights
A3
Aegean Airlines
Alternative Routes
Other ways to fly from Athens to Sofia with one stop · direct emits 61 kg CO₂ per passenger
Looking for the return flight?
SOF → ATH: Flights from Sofia to AthensOther direct flights from Athens
Direct flights from Sofia (SOF)
Frequently Asked Questions
How long is the direct flight from Athens to Sofia?
A nonstop flight from Athens (ATH) to Sofia (SOF) takes approximately 1 hours and 15 minutes. The distance is 329 miles (529 km).
Which airlines fly nonstop from Athens to Sofia?
3 airlines: Aegean Airlines, Bulgaria Air, Sky Express.
Is there a nonstop flight from Athens to Sofia?
Yes. 3 airlines: Aegean Airlines, Bulgaria Air, Sky Express.
How far is Athens from Sofia?
The flight distance from Athens to Sofia is 329 miles (529 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as Mumbai to Goa.
What type of aircraft flies from Athens to Sofia?
At 1h 15m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
Do I need a visa to travel from Greece to Bulgaria?
Depends on your passport. Check with the Bulgaria embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Athens to Sofia?
Roughly 61 kg CO2 per passenger one-way. That's about the same as driving 305 km.
Is the return flight from Sofia to Athens also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Athens to Sofia?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Athens International Airport for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.