Routes and flights · the DOT's airline reports, August 2025 to July 2026
Washington Dulles International ⇄ Klagenfurt IAD–KLU
Airlines flew 1 flights between Washington Dulles InternationalIAD in Washington, DC and Klagenfurt, Austria KLU in Klagenfurt, AT in the twelve months to July 2026, both directions together: 2 passengers in 11 seats, 18% of them filled. 4,425 miles, on 1 airline: Volkswagen AirSevice GmbH dba Volkswagon (1).
Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Washington Dulles InternationalIAD and Klagenfurt, Austria KLU; all routes.