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

Washington Dulles International ⇄ Istanbul IAD–IST

Airlines flew 1,300 flights between Washington Dulles International IAD in Washington, DC and Istanbul, Turkey IST in Istanbul, TR in the twelve months to July 2026, both directions together: 358,125 passengers in 417,652 seats, 86% of them filled, and 29,643,786 pounds of freight. 5,223 miles, on 2 airlines: Turk Hava Yollari A.O. (1,298), VistaJet Limited (2).

1,300
flights, twelve months
IAD-IST: 651 · IST-IAD: 649
358,125
passengers
86% of seats filled
5,223
miles
2
airlines
3 aircraft types

Flights by month both directions

03263941261/254/257/2510/251/265/261237/26
By month, as a table
flights
1/25124
2/2596
3/25113
4/25120
5/25124
6/25120
7/25123
8/25124
9/25120
10/25122
11/25111
12/25126
1/26120
2/2690
4/26120
5/26124
6/26120
7/26123

Passengers by month

08,92217,84326,76435,6861/254/257/2510/251/265/2635,6867/26
By month, as a table
passengers
1/2534,509
2/2524,337
3/2529,091
4/2531,902
5/2533,252
6/2533,993
7/2535,603
8/2535,141
9/2532,932
10/2532,915
11/2530,995
12/2534,712
1/2633,617
2/2623,799
4/2630,938
5/2633,151
6/2634,239
7/2635,686

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Turk Hava Yollari A.O. TK1,298358,11986%scheduled passenger service
VistaJet Limited VJT2621%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
B787-900 Dreamliner722300179,327
Boeing 777-300/300ER/333ER576349178,792
Bombardier Global 6000/Global Xrs2146

IAD → IST this direction alone · flown January 2025 to July 2026

651 flights, 178,658 passengers in 209,126 seats, 7,939,242 pounds of freight. Turk Hava Yollari A.O. 650; VistaJet Limited 1.

IST → IAD this direction alone · flown January 2025 to July 2026

649 flights, 179,467 passengers in 208,526 seats, 21,704,544 pounds of freight. Turk Hava Yollari A.O. 648; VistaJet Limited 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 International IAD and Istanbul, Turkey IST; all routes.