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

Chicago Midway International ⇄ St. Louis Downtown MDW–CPS

Airlines flew 12 flights between Chicago Midway International MDW in Chicago, IL and St. Louis Downtown CPS in Cahokia/St Louis, IL in the twelve months to July 2026, both directions together: 390 passengers in 1,285 seats, 30% of them filled, and 2,980 pounds of freight. 256 miles, about 43 minutes in the air, on 5 airlines: Delta Air Lines Inc. (7), Sun Country Airlines d/b/a MN Airlines (2), JetBlue Airways (1), United Air Lines Inc. (1) and 1 more. Planning to fly it yourself? The weather and winds along this route right now.

12
flights, twelve months
MDW-CPS: 7 · CPS-MDW: 5
390
passengers
30% of seats filled
256
miles
about 43 minutes airborne
5
airlines
5 aircraft types

Flights by month both directions

012231/256/259/251/2617/26
By month, as a table
flights
1/252
2/251
3/252
6/252
7/251
8/251
9/251
10/251
12/251
1/262
4/263
5/262
7/261

Passengers by month

033661001331/256/259/251/26617/26
By month, as a table
passengers
1/2553
2/2555
3/25120
6/25133
7/2560
8/250
9/2561
10/250
12/250
1/26111
4/2685
5/2672
7/2661

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Delta Air Lines Inc. DL712224%charter passenger service
Sun Country Airlines d/b/a MN Airlines SY28523%charter passenger service
JetBlue Airways B615131%charter passenger service
United Air Lines Inc. UA17240%charter passenger service
KaiserAir, Inc. 1EQ16088%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 757-200772122
Boeing 737-800218685
Airbus Industrie A320-100/200116251
Boeing 737-900ER117972
Boeing 737-700/700LR/Max 716860

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

7 flights, 288 passengers in 815 seats, 2,980 pounds of freight. Delta Air Lines Inc. 4; JetBlue Airways 1; Sun Country Airlines d/b/a MN Airlines 1; United Air Lines Inc. 1.

CPS → MDW this direction alone · flown February 2025 to May 2026

5 flights, 102 passengers in 470 seats. Delta Air Lines Inc. 3; KaiserAir, Inc. 1; Sun Country Airlines d/b/a MN Airlines 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: Chicago Midway International MDW and St. Louis Downtown CPS; all routes.