Direct (nonstop) flights from Porto to Sofia
1 airline flys nonstop from Porto Airport (OPO) to Sofia Airport (SOF). It's 1,645 miles (2,648 km), about 3h 50m in the air. Operated by Bulgaria Air.
Bulgaria Air
Route data last updated: May 27, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Porto to Sofia with one stop · direct emits 278 kg CO₂ per passenger
Looking for the return flight?
SOF → OPO: Flights from Sofia to PortoOther direct flights from Porto
Direct flights from Sofia (SOF)
Frequently Asked Questions
How long is the direct flight from Porto to Sofia?
A nonstop flight from Porto (OPO) to Sofia (SOF) takes approximately 3 hours and 50 minutes. The distance is 1,645 miles (2,648 km).
Which airlines fly nonstop from Porto to Sofia?
Just Bulgaria Air.
Is there a nonstop flight from Porto to Sofia?
Yes. 1 airline: Bulgaria Air.
How far is Porto from Sofia?
The flight distance from Porto to Sofia is 1,645 miles (2,648 km), measured as the great-circle (shortest air) distance.
What is the time difference between Porto and Sofia?
Sofia is 2 hours ahead of Porto. (Europe/Lisbon vs Europe/Sofia.)
What type of aircraft flies from Porto to Sofia?
At 3h 50m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
Do I need a visa to travel from Portugal 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 Porto to Sofia?
Roughly 278 kg CO2 per passenger one-way. That's about the same as driving 1,390 km.
Is the return flight from Sofia to Porto 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 Porto 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 Porto Airport for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.