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Chicago Midway International Airport (MDW) delays and on-time record

Chicago, Illinois KMDW #31 US airport by passengers

Live airport-wide delay programs from the FAA, the weather that causes them, and how each airline has actually performed at MDW.

FAA status
No delays reported Updated 1 min ago
Weather now
VFR 63°F Observed 2 h ago
Late departures
37.2%May 2026 to July 2026
Security line
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FAA delay status for MDW

The FAA is not reporting a ground stop, ground delay program or other delay at MDW right now.

Source: FAA National Airspace System Status, checked 1 min ago. Airline-specific delays are not shown here.

Current conditions at MDW

VFR

63°F17°C

Good visibility and high cloud base. Normal operations are typical.

Wind
180° 8 mph
Visibility
10+ mi
Clouds
FEW 8,500 ft, FEW 25,000 ft
Ceiling
None
Pressure
30.10 inHg

METARMETAR KMDW 101153Z 18007KT 10SM FEW085 FEW250 17/09 A3010 RMK AO2 SLP188 T01720089 10189 20172 51009

Source: NOAA Aviation Weather Center. Observed 2 h ago.

On-time performance at MDW

Based on 20,485 departures from May 2026 to July 2026. A flight counts as late when it leaves 15 or more minutes after schedule.

37.2%Departures late
27.7%Arrivals late
1.39%Cancelled
22.1 minAverage departure delay
On-time performance by airline at MDW
AirlineDeparturesLateCancelled
Southwest Airlines 19,723 37.8% 1.41%
Delta Air Lines 348 19.0% 1.72%
Frontier Airlines 281 21.4% 3.91%
Allegiant Air 115 31.3% 0.87%

Source: Bureau of Transportation Statistics, On-Time Performance of reporting carriers. Smaller regional carriers and some airlines are not included.

Late departures by month

AprMayJunJul

How delays work at MDW

A ground stop holds flights bound for MDW at their origin airports. A ground delay program spaces arrivals out so the airport is not overloaded. Departure and arrival delay messages describe the average wait the FAA expects. None of these tell you whether your own flight is late, so always check your airline as well.

Local tips

  • Midway is small, and the airside amenities are limited. Plan on one lounge and a food court, and bring entertainment if you have a long layover.
  • Concourse B is the longest, so allow time to walk from the Central Market to your gate.
  • If you are flying out early, the CTA train starts running at about 4 a.m., so you can reach the airport without a car.
  • A permanent Battle of Midway exhibit, about the WWII naval battle the airport is named after, is located near Concourse A.