The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Sofia ⇄ Washington Dulles International SOF–IAD

Airlines flew 4 flights between Sofia, Bulgaria SOF in Sofia, BG and Washington Dulles International IAD in Washington, DC in the twelve months to July 2026, both directions together: 666 passengers in 942 seats, 71% of them filled, and 161,937 pounds of freight. 4,948 miles, about 626 minutes in the air, on 2 airlines: Omni Air International LLC (3), ABS JETS A.S (1).

4
flights, twelve months
SOF-IAD: 3 · IAD-SOF: 1
666
passengers
71% of seats filled
4,948
miles
about 626 minutes airborne
2
airlines
3 aircraft types

Flights by month both directions

0122326/25133/26
By month, as a table
flights
6/252
11/251
3/263

Passengers by month

01663324996652186/2516653/26
By month, as a table
passengers
6/25218
11/251
3/26665

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Omni Air International LLC X9366572%charter passenger service
ABS JETS A.S 2AQ116%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 767-300/300ER2272335
Boeing 777-200ER/200LR/233LR1381330
Gulfstream G6501171

SOF → IAD this direction alone · flown June 2025 to March 2026

3 flights, 665 passengers in 925 seats, 161,717 pounds of freight. Omni Air International LLC 3.

IAD → SOF this direction alone · flown November 2025 to November 2025

1 flights, 1 passengers in 17 seats, 220 pounds of freight. ABS JETS A.S 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: Sofia, Bulgaria SOF and Washington Dulles International IAD; all routes.