FlightRecord

General Mitchell International Airport (MKE): Delays & On-Time Performance

Data through May 2026

General Mitchell International Airport (MKE) is a tale of two seasons: departures ran 89% on-time in October 2024 but sank to 73% in December 2025. Across the year it averages 81% against a national 78%, over roughly 79 departures a day to 39 destinations.

Departures on-time
81%
left <15 min late
Avg dep delay
16 min
Arrivals on-time
76%
Cancelled
1.7%
Destinations
39
nonstop
Airlines
13

Monthly on-time trend

Monthly departure on-time percentage at MKE50%75%100%June 2024: 81% on-time (2,443 flights)81Jun 2024July 2024: 76% on-time (2,613 flights)76August 2024: 83% on-time (2,598 flights)83September 2024: 88% on-time (2,396 flights)88Sep 2024October 2024: 89% on-time (2,566 flights)89November 2024: 87% on-time (2,215 flights)87December 2024: 80% on-time (2,205 flights)80Dec 2024January 2025: 85% on-time (1,929 flights)85February 2025: 83% on-time (1,797 flights)83March 2025: 83% on-time (2,317 flights)83Mar 2025April 2025: 85% on-time (2,316 flights)85May 2025: 81% on-time (2,359 flights)81June 2025: 77% on-time (2,482 flights)77Jun 2025July 2025: 76% on-time (2,589 flights)76August 2025: 79% on-time (2,498 flights)79September 2025: 85% on-time (2,315 flights)85Sep 2025October 2025: 82% on-time (2,564 flights)82November 2025: 82% on-time (2,230 flights)82December 2025: 73% on-time (2,273 flights)73Dec 2025January 2026: 78% on-time (2,077 flights)78February 2026: 83% on-time (2,033 flights)83March 2026: 74% on-time (2,626 flights)74Mar 2026April 2026: 83% on-time (2,588 flights)83May 2026: 82% on-time (2,735 flights)82

Best time of day to depart from MKE

On-time percentage by scheduled departure hour at MKE5 a.m.: 94% on-time (4,199 flights)56 a.m.: 90% on-time (7,201 flights)67 a.m.: 88% on-time (5,312 flights)78 a.m.: 84% on-time (3,001 flights)89 a.m.: 86% on-time (2,198 flights)910 a.m.: 87% on-time (3,872 flights)1011 a.m.: 80% on-time (3,372 flights)1112 p.m.: 80% on-time (3,873 flights)121 p.m.: 81% on-time (2,811 flights)132 p.m.: 78% on-time (3,778 flights)143 p.m.: 76% on-time (3,293 flights)154 p.m.: 73% on-time (3,243 flights)165 p.m.: 71% on-time (4,517 flights)176 p.m.: 68% on-time (3,463 flights)187 p.m.: 68% on-time (1,845 flights)198 p.m.: 65% on-time (602 flights)209 p.m.: 72% on-time (148 flights)21scheduled departure hour

Busiest routes from MKE

RouteFlights/12moOn-timeAvg delay
MKE → ORD5,16670%28 min
MKE → DEN2,34081%14 min
MKE → ATL2,26288%11 min
MKE → DTW1,52682%19 min
MKE → PHX1,48982%15 min
MKE → MSP1,48482%16 min
MKE → MCO1,39980%14 min
MKE → DCA1,34978%21 min

Most reliable routes

  1. MKE → STL89%
  2. MKE → ATL88%
  3. MKE → SLC87%
  4. MKE → MCI87%
  5. MKE → BWI85%

Most delay-prone routes

  1. MKE → SAN70%
  2. MKE → ORD70%
  3. MKE → MDW71%
  4. MKE → BOS74%
  5. MKE → DFW74%

Airline performance at MKE

AirlineOn-time departuresAvg delayFlights
Delta Air Lines87%12 min8,078
Spirit Airlines87%11 min1,039
Alaska Airlines85%7 min966
Endeavor Air84%15 min464
Southwest Airlines82%11 min19,325
Envoy Air82%14 min330
Republic Airways81%16 min4,273
PSA Airlines79%27 min2,162
SkyWest Airlines78%22 min12,550
American Airlines78%26 min5,087
United Airlines78%17 min1,351
Frontier Airlines75%22 min660
JetBlue Airways67%28 min479

Frequently asked questions

How often are flights delayed at MKE?
19% of departures from General Mitchell International Airport left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 16 minutes. The national on-time average over the same period was 78%.
What is the best time of day to depart from MKE?
Flights scheduled around 5 a.m. depart on time 94% of the time at MKE, versus 65% around 8 p.m.. Booking before noon is the usual rule of thumb here.
What is the worst month for delays at MKE?
In this dataset, December 2025 was the weakest month at MKE, with 73% of departures on time.
How often are flights cancelled at MKE?
1.7% of scheduled departures from MKE were cancelled in this period, compared with a national rate of 1.6%.

Popular route pages from this airport

Based on 56,764 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.