Direct (nonstop) flights from Sofia to Porto
1 airline flys nonstop from Sofia Airport (SOF) to Porto Airport (OPO). It's 1,645 miles (2,648 km), about 4h 20m in the air. Operated by Bulgaria Air.
Bulgaria Air
Route data last updated: May 29, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Sofia to Porto with one stop · direct emits 278 kg CO₂ per passenger
Looking for the return flight?
OPO → SOF: Flights from Porto to SofiaOther direct flights from Sofia
Direct flights from Porto (OPO)
Frequently Asked Questions
How long is the direct flight from Sofia to Porto?
A nonstop flight from Sofia (SOF) to Porto (OPO) takes approximately 4 hours and 20 minutes. The distance is 1,645 miles (2,648 km).
Which airlines fly nonstop from Sofia to Porto?
Just Bulgaria Air.
Is there a nonstop flight from Sofia to Porto?
Yes. 1 airline: Bulgaria Air.
How far is Sofia from Porto?
The flight distance from Sofia to Porto is 1,645 miles (2,648 km), measured as the great-circle (shortest air) distance.
What is the time difference between Sofia and Porto?
Porto is 2 hours behind Sofia. (Europe/Sofia vs Europe/Lisbon.)
What type of aircraft flies from Sofia to Porto?
At 4h 20m, 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 Bulgaria to Portugal?
Depends on your passport. Check with the Portugal embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Sofia to Porto?
Roughly 278 kg CO2 per passenger one-way. That's about the same as driving 1,390 km.
Is the return flight from Porto to Sofia 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 Sofia to Porto?
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 Sofia Airport for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.