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

Washington Dulles International ⇄ Toronto IAD–YTZ

Airlines flew 999 flights between Washington Dulles International IAD in Washington, DC and Toronto, Canada YTZ in Toronto, CA in the twelve months to July 2026, both directions together: 47,206 passengers in 77,852 seats, 61% of them filled. 338 miles, about 0 minutes in the air, on 3 airlines: Porter Airlines Inc. (PAI) (896), Jazz Aviation LP (102), Tradewind Aviation (1).

999
flights, twelve months
IAD-YTZ: 497 · YTZ-IAD: 502
47,206
passengers
61% of seats filled
338
miles
about 0 minutes airborne
3
airlines
2 aircraft types

Flights by month both directions

039781181571/254/257/2510/251/264/26467/26
By month, as a table
flights
1/2561
2/2546
3/25100
4/25100
5/2592
6/2595
7/2594
8/2597
9/2594
10/25102
11/2597
12/25106
1/2647
2/2640
3/2650
4/2666
5/2697
6/26157
7/2646

Passengers by month

02,1194,2386,3578,4761/254/257/2510/251/264/262,7287/26
By month, as a table
passengers
1/252,618
2/251,685
3/253,128
4/253,950
5/253,886
6/255,695
7/255,817
8/256,110
9/253,638
10/254,594
11/253,851
12/254,687
1/261,955
2/261,377
3/262,431
4/262,794
5/264,565
6/268,476
7/262,728

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Porter Airlines Inc. (PAI) P389641,15859%scheduled passenger service
Jazz Aviation LP QK1026,04676%scheduled passenger service
Tradewind Aviation TJ1225%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
De Havilland DHC8-400 Dash-89987847,204
Pilatus PC-12182

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

497 flights, 23,907 passengers in 38,766 seats. Porter Airlines Inc. (PAI) 446; Jazz Aviation LP 51.

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

502 flights, 23,299 passengers in 39,086 seats. Porter Airlines Inc. (PAI) 450; Jazz Aviation LP 51; Tradewind Aviation 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 Toronto, Canada YTZ; all routes.