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

Istanbul ⇄ Chicago O'Hare International IST–ORD

Airlines flew 1,724 flights between Istanbul, Turkey IST in Istanbul, TR and Chicago O'Hare International ORD in Chicago, IL in the twelve months to July 2026, both directions together: 375,817 passengers in 440,897 seats, 85% of them filled, and 110,040,735 pounds of freight. 5,472 miles, about 17 minutes in the air, on 2 airlines: Turk Hava Yollari A.O. (1,662), Atlas Air Inc. (62).

1,724
flights, twelve months
IST-ORD: 900 · ORD-IST: 824
375,817
passengers
85% of seats filled
5,472
miles
about 17 minutes airborne
2
airlines
6 aircraft types

Flights by month both directions

044871301741/254/257/2510/251/264/261537/26
By month, as a table
flights
1/25139
2/25111
3/25136
4/25144
5/25149
6/25141
7/25159
8/25152
9/25164
10/25169
11/25148
12/25174
1/26163
2/26121
3/265
4/26164
5/26162
6/26149
7/26153

Passengers by month

010,10820,21630,32340,4311/254/257/2510/251/264/2633,7057/26
By month, as a table
passengers
1/2534,392
2/2524,199
3/2531,227
4/2531,440
5/2534,149
6/2534,586
7/2540,431
8/2539,499
9/2539,380
10/2536,749
11/2530,597
12/2533,673
1/2634,729
2/2623,789
3/260
4/2634,010
5/2635,270
6/2634,416
7/2633,705

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Turk Hava Yollari A.O. TK1,662375,81785%scheduled cargo service, scheduled passenger service
Atlas Air Inc. 5Y620charter cargo service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
B787-900 Dreamliner710300178,427
Boeing 777-300/300ER/333ER653349197,390
Boeing B777-F24300
Boeing 747-4006200
Boeing 747-400F5200
Airbus Industrie A330-200400

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

900 flights, 189,102 passengers in 220,923 seats, 72,395,014 pounds of freight. Turk Hava Yollari A.O. 876; Atlas Air Inc. 24.

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

824 flights, 186,715 passengers in 219,974 seats, 37,645,721 pounds of freight. Turk Hava Yollari A.O. 786; Atlas Air Inc. 38.

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: Istanbul, Turkey IST and Chicago O'Hare International ORD; all routes.