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

Louis Armstrong New Orleans International ⇄ Chicago Midway International MSY–MDW

Airlines flew 2,004 flights between Louis Armstrong New Orleans International MSY in New Orleans, LA and Chicago Midway International MDW in Chicago, IL in the twelve months to July 2026, both directions together: 250,051 passengers in 335,015 seats, 75% of them filled, and 312,715 pounds of freight. 825 miles, about 116 minutes in the air, on 2 airlines: Southwest Airlines Co. (1,999), Delta Air Lines Inc. (5). Planning to fly it yourself? The weather and winds along this route right now.

2,004
flights, twelve months
MSY-MDW: 997 · MDW-MSY: 1,007
250,051
passengers
75% of seats filled
825
miles
about 116 minutes airborne
2
airlines
4 aircraft types

Flights by month both directions

049981471961/254/257/2510/251/264/261817/26
By month, as a table
flights
1/25120
2/25137
3/25178
4/25179
5/25180
6/25189
7/25196
8/25169
9/25161
10/25194
11/25151
12/25162
1/26131
2/26134
3/26180
4/26178
5/26185
6/26178
7/26181

Passengers by month

06,60013,20019,80026,4001/254/257/2510/251/264/2622,9477/26
By month, as a table
passengers
1/2514,583
2/2516,783
3/2521,726
4/2522,990
5/2523,908
6/2524,815
7/2526,400
8/2524,268
9/2523,639
10/2526,211
11/2518,224
12/2518,298
1/2614,173
2/2615,287
3/2621,188
4/2621,307
5/2623,433
6/2621,076
7/2622,947

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Southwest Airlines Co. WN1,999249,74675%scheduled passenger service
Delta Air Lines Inc. DL530585%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing B737 Max 800923175116,885
Boeing 737-80064617584,429
Boeing 737-700/700LR/Max 743014048,432
Boeing 757-200572305

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

997 flights of 1,014 scheduled, 124,800 passengers in 166,695 seats, 209,076 pounds of freight. Southwest Airlines Co. 995; Delta Air Lines Inc. 2.

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

1,007 flights of 1,013 scheduled, 125,251 passengers in 168,320 seats, 103,639 pounds of freight. Southwest Airlines Co. 1,004; Delta Air Lines Inc. 3.

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: Louis Armstrong New Orleans International MSY and Chicago Midway International MDW; all routes.