Back to CalculatorRoute ID: SOF-STL
Flight Distance from Sofia (SOF) to St Louis (STL)
Comprehensive aviation route data, direct distance, flight duration, CO₂ footprint, passport visa rules and interactive map.
Origin Airport
SOFLBSF
Sofia, Bulgaria
Sofia Airport
Great Circle Path
8,769 km5,449 miles • 4,735 NM
Destination Airport
KSTLSTL
St Louis, United States
St. Louis Lambert International Airport
Direct Distance
8,769 km
5,449 Statute Miles
4,735 Nautical Miles
Commercial Flight
10h 49m
Est. non-stop flight duration (~850 km/h cruising speed + buffer)
CO₂ Footprint
789 kg
Estimated carbon footprint per economy passenger (~90g CO₂/km)
Initial Heading
313° True
Initial compass bearing towards destination
Estimated Travel Duration by Aircraft Class
Commercial Jet (Boeing 787 / A350)
10h 49m
Speed: ~850 km/h (459 knots)
Business Jet (Gulfstream G650)
10h 2m
Speed: ~920 km/h (496 knots)
Turboprop Aircraft (ATR-72 / Q400)
17h 22m
Speed: ~520 km/h (280 knots)
Passport & Visa Entry Requirements
🌐 BG→🇺🇸 United States
This information is provided for general guidance only and does not replace official verification with an embassy, consulate, or the IATA Travel Centre before you travel.
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Flight Path & Geodetic Arc Map
Great Circle Flight Arc Path
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Departure Airport Specs
Sofia Airport (SOF)
- City / Country: Sofia, Bulgaria
- ICAO Code: LBSF
- Coordinates: 42.6964°, 23.4177°
- Timezone: Europe/Sofia
- Elevation: 1742 ft
Arrival Airport Specs
St. Louis Lambert International Airport (STL)
- City / Country: St Louis, United States
- ICAO Code: KSTL
- Coordinates: 38.7487°, -90.3700°
- Timezone: America/Chicago
- Elevation: 618 ft
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