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KLU to SOF: distance & flight time
Klagenfurt (Klagenfurt Airport) → Sofia (Sofia Airport)
522 mi
840 km · 454 nm
1h 36m
estimated nonstop flight time
+1h
time difference · heading southeast
See live KLU→SOF fares Phone-only fares on this route — call free
Flight time details
522 miles nonstop takes roughly 1h 36m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- KLU — Klagenfurt Airport · Klagenfurt, Austria
- SOF — Sofia Airport · Sofia, Bulgaria
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near KLU
- LJU · Ljubljana Jože Pučnik Airport29 mi away
- GRZ · Graz Airport57 mi away
- MBX · Maribor Airport65 mi away
- TRS · Trieste–Friuli Venezia Giulia Airport70 mi away
Near SOF
- PDV · Plovdiv International Airport85 mi away
- INI · Nis Airport90 mi away
- SKP · Skopje Alexander the Great Airport105 mi away
- CRA · Craiova Airport115 mi away
Frequently asked questions
How far is KLU from SOF?
The flight distance from Klagenfurt (KLU) to Sofia (SOF) is 522 miles (840 km, 454 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLU to SOF?
A nonstop flight takes about 1h 36m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Klagenfurt and Sofia?
Sofia is 1 hour ahead of Klagenfurt.
What is the cheapest way to fly from KLU to SOF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLU–SOF that never appear on search engines, with no booking fees.