General Mitchell International in May 2026

81.2%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 May 2026, reporting carriers scheduled 2,735 domestic departures from General Mitchell International (MKE). 81.2% left less than 15 minutes late and 79.8% reached their destination on time; 0.7% were cancelled.

Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so MKE departures were 4.1 points above the national departure figure.

A year earlier, in May 2025, the airport had 2,359 departures with 80.2% leaving on time: a change of +1.0 points, with flights up 16%.

Flights arriving at MKE that month were on time 75.7% of the time (2,738 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 44%, late-arriving aircraft 32% and national aviation system 17%.

On time 79.8%
Arrived 15+ minutes late 19.2%
Cancelled 0.7%
Diverted 0.3%

Every scheduled departure from MKE in May 2026, judged by arrival at the destination.

May 2026 against a year earlier, the airport's year and the nation

Measure	May 2026	May 2025	MKE, 12 months to Jul 2026	All reported flights, May 2026
Departed on time	81.2%	80.2%	77.6%	77.1%
Arrived on time	79.8%	78.8%	76.2%	77.6%
Cancelled	0.7%	1.2%	2.3%	0.9%
Average departure delay (late minutes only)	13.2 min	17.1 min	17.8 min	16.0 min
Scheduled departures a day	91	79	80	20,391
Scheduled departures	2,735	2,359	29,355	611,735

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	866	32%	80.4%	1.9 min	0.1%
OO SkyWest Airlines	812	30%	75.0%	10.6 min	0.6%
DL Delta Air Lines	331	12%	87.3%	-8.9 min	0.9%
YX Republic Airline	203	7%	86.7%	-2.8 min	1.0%
AA American Airlines	199	7%	73.9%	8.6 min	2.0%
OH PSA Airlines	151	6%	81.5%	2.3 min	3.3%
AS Alaska Airlines	55	2%	89.1%	-7.5 min	0.0%
UA United Airlines	54	2%	81.5%	6.6 min	0.0%
B6 JetBlue Airways	31	1%	74.2%	3.8 min	0.0%
F9 Frontier Airlines	28	1%	82.1%	5.0 min	0.0%
MQ Envoy Air	5	0%	60.0%	55.2 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MKE–ORD	Milwaukee to Chicago	516	71.1%	14.3 min	1.0%
MKE–ATL	Milwaukee to Atlanta	216	87.0%	-7.2 min	1.4%
MKE–DEN	Milwaukee to Denver	190	76.8%	5.0 min	0.0%
MKE–MSP	Milwaukee to Minneapolis	162	92.0%	-5.7 min	0.0%
MKE–DTW	Milwaukee to Detroit	148	78.4%	5.6 min	0.0%
MKE–PHX	Milwaukee to Phoenix	134	71.6%	12.5 min	0.0%
MKE–DCA	Milwaukee to Washington	114	76.3%	5.9 min	0.9%
MKE–MCO	Milwaukee to Orlando	108	71.3%	6.2 min	0.0%
MKE–LAS	Milwaukee to Las Vegas	92	83.7%	-1.4 min	0.0%
MKE–CLT	Milwaukee to Charlotte	91	80.2%	-3.8 min	0.0%
MKE–DFW	Milwaukee to Dallas/Fort Worth	90	72.2%	17.0 min	4.4%
MKE–BNA	Milwaukee to Nashville	88	88.6%	-0.5 min	0.0%

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), May 2026.

Delay causes

BTS cause category	Share of delay minutes	National, May 2026	Minutes
Air carrier	43.6%	33.0%	14,897
Late-arriving aircraft	32.0%	40.4%	10,935
National Aviation System	17.1%	20.5%	5,841
Extreme weather	7.4%	6.0%	2,521
Security	0.0%	0.1%	0

34,194 delay minutes on 526 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 May 2026?

81.2% of 2,735 scheduled domestic departures left less than 15 minutes late, and 79.8% reached their destination on time. The national figures that month were 77.1% and 77.6%.

How does that compare with a year earlier?

In May 2025, 80.2% of 2,359 departures left on time and 1.2% were cancelled, against 81.2% and 0.7% in May 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2026; 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.