General Mitchell International in August 2025

77.7%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In August 2025, reporting carriers scheduled 2,498 domestic departures from General Mitchell International (MKE). 77.7% left less than 15 minutes late and 76.9% reached their destination on time; 1.4% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so MKE departures were 0.9 points above the national departure figure.

A year earlier, in August 2024, the airport had 2,598 departures with 81.7% leaving on time: a change of −4.0 points, with flights down 4%.

Flights arriving at MKE that month were on time 73.2% of the time (2,500 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 43%, late-arriving aircraft 25% and national aviation system 20%.

On time 76.9%
Arrived 15+ minutes late 21.3%
Cancelled 1.4%
Diverted 0.4%

Every scheduled departure from MKE in August 2025, judged by arrival at the destination.

August 2025 against a year earlier, the airport's year and the nation

Measure	Aug 2025	Aug 2024	MKE, 12 months to Jul 2026	All reported flights, Aug 2025
Departed on time	77.7%	81.7%	77.6%	76.8%
Arrived on time	76.9%	80.2%	76.2%	76.3%
Cancelled	1.4%	2.0%	2.3%	1.1%
Average departure delay (late minutes only)	18.4 min	12.8 min	17.8 min	17.6 min
Scheduled departures a day	83	87	80	20,079
Scheduled departures	2,498	2,598	29,355	602,378

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	750	30%	82.5%	4.3 min	0.4%
OO SkyWest Airlines	547	22%	66.4%	21.3 min	3.5%
DL Delta Air Lines	386	15%	86.0%	2.3 min	0.5%
YX Republic Airline	256	10%	75.8%	5.9 min	1.6%
AA American Airlines	183	7%	69.9%	25.0 min	2.2%
OH PSA Airlines	129	5%	81.4%	12.6 min	1.6%
UA United Airlines	81	3%	63.0%	25.4 min	0.0%
AS Alaska Airlines	62	2%	85.5%	1.6 min	0.0%
NK Spirit Airlines	62	2%	82.3%	2.0 min	1.6%
B6 JetBlue Airways	31	1%	64.5%	21.7 min	0.0%
F9 Frontier Airlines	11	0%	54.5%	28.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MKE–ORD	Milwaukee to Chicago	398	62.1%	25.2 min	4.8%
MKE–DEN	Milwaukee to Denver	239	72.0%	16.5 min	0.0%
MKE–ATL	Milwaukee to Atlanta	198	89.9%	-2.0 min	1.0%
MKE–DTW	Milwaukee to Detroit	128	84.4%	4.4 min	0.8%
MKE–MSP	Milwaukee to Minneapolis	121	76.9%	14.6 min	0.0%
MKE–DCA	Milwaukee to Washington	115	80.9%	11.9 min	0.9%
MKE–LAS	Milwaukee to Las Vegas	103	85.4%	-1.4 min	0.0%
MKE–PHX	Milwaukee to Phoenix	102	85.3%	2.2 min	0.0%
MKE–MCO	Milwaukee to Orlando	101	76.2%	13.5 min	0.0%
MKE–DFW	Milwaukee to Dallas/Fort Worth	93	59.1%	29.1 min	4.3%
MKE–EWR	Milwaukee to Newark	90	66.7%	17.6 min	1.1%
MKE–BOS	Milwaukee to Boston	87	75.9%	7.3 min	1.1%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), August 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2025	Minutes
Air carrier	42.7%	33.1%	18,771
Late-arriving aircraft	24.6%	40.5%	10,820
National Aviation System	20.3%	19.2%	8,918
Extreme weather	12.4%	7.0%	5,426
Security	0.0%	0.1%	0

43,935 delay minutes on 531 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left MKE on time in August 2025?

77.7% of 2,498 scheduled domestic departures left less than 15 minutes late, and 76.9% reached their destination on time. The national figures that month were 76.8% and 76.3%.

How does that compare with a year earlier?

In August 2024, 81.7% of 2,598 departures left on time and 2.0% were cancelled, against 77.7% and 1.4% in August 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for MKE · methodology · corrections.