Airports · Chicago Midway International Airport
Flights from Chicago (MDW)
Airlines flew 77,142 departures out of Chicago Midway International Airport (MDW) carrying 9,468,297 passengers over the 12 months through April 2026. Here's what actually flew — the busiest routes, the carriers, and the aircraft — from US DOT T-100 filings.
What flies from Chicago
US DOT T-100 · filed dataWhat airlines actually flew out of Chicago — departures, seats, and passengers filed with the US DOT (T-100) over the trailing 12 months, not a schedule.
Departures
77,142
April 2026
Seats flown
12,382,420
Passengers
9,468,297
Load factor
76.5%
passengers ÷ seats
Busiest routes from Chicago
Where flights from Chicago go most, by departures over the trailing 12 months.
3,527 departures · 409,191 passengers
77.0%
Load
2,792 departures · 397,627 passengers
83.9%
Load
2,756 departures · 384,269 passengers
82.3%
Load
2,663 departures · 263,845 passengers
77.3%
Load
2,429 departures · 351,285 passengers
85.2%
Load
2,427 departures · 336,441 passengers
81.4%
Load
2,263 departures · 310,891 passengers
83.1%
Load
2,157 departures · 279,189 passengers
78.3%
Load
2,096 departures · 165,097 passengers
67.8%
Load
2,079 departures · 240,858 passengers
72.1%
Load
2,051 departures · 206,647 passengers
64.4%
Load
1,895 departures · 217,783 passengers
70.8%
Load
1,853 departures · 223,042 passengers
72.8%
Load
1,836 departures · 253,644 passengers
83.2%
Load
1,720 departures · 169,766 passengers
61.5%
Load
Airlines at Chicago
Ranked by seats flown — the capacity each carrier actually operated out of Chicago.
- WN
11,264,798 seats · 76.6% load
91.0%
Share
- F9
359,586 seats · 81.2% load
2.9%
Share
- Y4
Volaris
293,008 seats · 69.8% load
2.4%
Share
- DL
189,641 seats · 78.5% load
1.5%
Share
- OO
111,755 seats · 75.4% load
0.9%
Share
- G4
63,406 seats · 83.3% load
0.5%
Share
- 9E
43,744 seats · 63.8% load
0.4%
Share
- P3
Porter Airlines
40,950 seats · 62.3% load
0.3%
Share
- SY
5,344 seats · 40.1% load
0.0%
Share
- UA
3,527 seats · 35.1% load
0.0%
Share
Aircraft flown from Chicago
Aircraft types by share of departures — what actually operated, not what's based here.
26,050 departures · 76.6% load
33.8%
Share
22,896 departures · 77.3% load
29.7%
Share
19,860 departures · 75.9% load
25.7%
Share
3,371 departures · 75.9% load
4.4%
Share
1,472 departures · 75.4% load
1.9%
Share
730 departures · 85.4% load
0.9%
Share
656 departures · 78.0% load
0.9%
Share
556 departures · 64.5% load
0.7%
Share
De Havilland DHC8-400 Dash-8
525 departures · 62.3% load
0.7%
Share
478 departures · 82.8% load
0.6%
Share
174 departures · 41.7% load
0.2%
Share
77 departures · 59.3% load
0.1%
Share
Monthly departures from Chicago
Monthly departures from Chicago, trailing 12 months through April 2026. Bars scale to the busiest month.
May 2025
6,391 departures · 798,236 passengers
78.3%
Load
June 2025
7,665 departures · 981,354 passengers
79.3%
Load
July 2025
7,799 departures · 999,003 passengers
79.3%
Load
August 2025
6,979 departures · 917,067 passengers
81.6%
Load
September 2025
6,711 departures · 859,963 passengers
79.5%
Load
October 2025
6,810 departures · 880,947 passengers
80.5%
Load
November 2025
5,648 departures · 663,838 passengers
72.7%
Load
December 2025
6,075 departures · 731,990 passengers
74.5%
Load
January 2026
5,072 departures · 524,628 passengers
64.7%
Load
February 2026
4,766 departures · 524,583 passengers
69.5%
Load
March 2026
6,676 departures · 825,028 passengers
77.7%
Load
April 2026
6,550 departures · 761,660 passengers
73.2%
Load
Source: US DOT Bureau of Transportation Statistics, T-100 Segment. Data through April 2026. The DOT publishes roughly three months in arrears.