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

Washington Dulles International ⇄ Chicago Midway International IAD–MDW

Airlines flew 43 flights between Washington Dulles International IAD in Washington, DC and Chicago Midway International MDW in Chicago, IL in the twelve months to July 2026, both directions together: 3,320 passengers in 4,506 seats, 74% of them filled, and 9,703 pounds of freight. 577 miles, about 89 minutes in the air, on 6 airlines: Delta Air Lines Inc. (16), Southwest Airlines Co. (15), Jet Aviation Flight Services, Inc. (8), Air Canada (2) and 2 more. Planning to fly it yourself? The weather and winds along this route right now.

43
flights, twelve months
IAD-MDW: 24 · MDW-IAD: 19
3,320
passengers
74% of seats filled
577
miles
about 89 minutes airborne
6
airlines
12 aircraft types

Flights by month both directions

024681/254/257/2510/252/265/2647/26
By month, as a table
flights
1/253
2/251
3/254
4/254
5/252
6/257
7/257
8/254
9/258
10/254
11/251
1/263
2/263
3/263
4/263
5/263
6/267
7/264

Passengers by month

01182353524701/254/257/2510/252/265/262697/26
By month, as a table
passengers
1/25104
2/2528
3/25147
4/25412
5/25342
6/25401
7/25448
8/25412
9/25459
10/25406
11/2562
1/26166
2/2664
3/26250
4/26411
5/26351
6/26470
7/26269

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Delta Air Lines Inc. DL1670854%charter passenger service
Southwest Airlines Co. WN152,37192%charter passenger service
Jet Aviation Flight Services, Inc. 27Q83538%charter passenger service
Air Canada AC210474%charter passenger service
American Airlines Inc. AA16434%charter passenger service
United Air Lines Inc. UA13821%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 757-2001580662
Boeing B737 Max 800121751,902
Gulfstream Aerospace Gulfstream G2803910
Dassault Falcon 900/900EX3149
Boeing 737-8002175344
Airbus Industrie A320-100/200270104
Boeing 717-200111046
Bombardier BD-100-1A10 Challenger 300184
Airbus Industrie A321Neoxlr119064
Boeing B737 Max 900117938
Boeing 737-700/700LR/Max 71137125
Embraer Legacy 60011612

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

24 flights, 1,718 passengers in 2,591 seats, 9,703 pounds of freight. Delta Air Lines Inc. 11; Southwest Airlines Co. 7; Jet Aviation Flight Services, Inc. 4; American Airlines Inc. 1; United Air Lines Inc. 1.

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

19 flights, 1,602 passengers in 1,915 seats. Southwest Airlines Co. 8; Delta Air Lines Inc. 5; Jet Aviation Flight Services, Inc. 4; Air Canada 2.

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 Chicago Midway International MDW; all routes.