Back to CalculatorRoute ID: KEF-SOF
Flight Distance from Reykjavík (KEF) to Sofia (SOF)
Comprehensive aviation route data, direct distance, flight duration, CO₂ footprint, passport visa rules and interactive map.
Origin Airport
KEFBIKF
Reykjavík, Iceland
Keflavik International Airport
Great Circle Path
3,732 km2,319 miles • 2,015 NM
Destination Airport
LBSFSOF
Sofia, Bulgaria
Sofia Airport
Direct Distance
3,732 km
2,319 Statute Miles
2,015 Nautical Miles
Commercial Flight
4h 53m
Est. non-stop flight duration (~850 km/h cruising speed + buffer)
CO₂ Footprint
336 kg
Estimated carbon footprint per economy passenger (~90g CO₂/km)
Initial Heading
107° True
Initial compass bearing towards destination
Estimated Travel Duration by Aircraft Class
Commercial Jet (Boeing 787 / A350)
4h 53m
Speed: ~850 km/h (459 knots)
Business Jet (Gulfstream G650)
4h 33m
Speed: ~920 km/h (496 knots)
Turboprop Aircraft (ATR-72 / Q400)
7h 41m
Speed: ~520 km/h (280 knots)
Passport & Visa Entry Requirements
🌐 IS→🌐 BG
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
Keflavik International Airport (KEF)
- City / Country: Reykjavík, Iceland
- ICAO Code: BIKF
- Coordinates: 63.9850°, -22.6056°
- Timezone: Atlantic/Reykjavik
- Elevation: 171 ft
Arrival Airport Specs
Sofia Airport (SOF)
- City / Country: Sofia, Bulgaria
- ICAO Code: LBSF
- Coordinates: 42.6964°, 23.4177°
- Timezone: Europe/Sofia
- Elevation: 1742 ft
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