General Mitchell International in April 2026

80.7%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 April 2026, reporting carriers scheduled 2,588 domestic departures from General Mitchell International (MKE). 80.7% left less than 15 minutes late and 78.9% reached their destination on time; 2.2% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so MKE departures were 1.6 points above the national departure figure.

A year earlier, in April 2025, the airport had 2,316 departures with 84.1% leaving on time: a change of −3.4 points, with flights up 12%.

Flights arriving at MKE that month were on time 73.7% of the time (2,589 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 43%, late-arriving aircraft 31% and national aviation system 16%.

On time 78.9%
Arrived 15+ minutes late 18.9%
Cancelled 2.2%
Diverted 0.1%

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

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

Measure	Apr 2026	Apr 2025	MKE, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	80.7%	84.1%	77.6%	79.1%
Arrived on time	78.9%	82.9%	76.2%	78.9%
Cancelled	2.2%	0.9%	2.3%	0.9%
Average departure delay (late minutes only)	16.7 min	12.3 min	17.8 min	14.5 min
Scheduled departures a day	86	77	80	19,931
Scheduled departures	2,588	2,316	29,355	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	873	34%	83.6%	0.0 min	0.1%
OO SkyWest Airlines	744	29%	66.3%	22.4 min	6.0%
DL Delta Air Lines	274	11%	88.0%	-1.9 min	2.2%
YX Republic Airline	200	8%	83.5%	-3.5 min	0.0%
AA American Airlines	193	7%	85.0%	12.6 min	1.0%
OH PSA Airlines	135	5%	81.5%	19.3 min	0.0%
UA United Airlines	63	2%	84.1%	1.0 min	0.0%
F9 Frontier Airlines	36	1%	80.6%	-4.9 min	2.8%
AS Alaska Airlines	35	1%	100.0%	-13.5 min	0.0%
MQ Envoy Air	33	1%	57.6%	22.6 min	6.1%
B6 JetBlue Airways	2	0%	0.0%	43.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MKE–ORD	Milwaukee to Chicago	517	57.4%	29.8 min	8.9%
MKE–ATL	Milwaukee to Atlanta	193	89.6%	-10.0 min	2.6%
MKE–DEN	Milwaukee to Denver	160	80.6%	2.7 min	0.0%
MKE–DTW	Milwaukee to Detroit	144	82.6%	13.6 min	0.7%
MKE–PHX	Milwaukee to Phoenix	144	79.9%	9.6 min	0.0%
MKE–MSP	Milwaukee to Minneapolis	136	86.0%	4.8 min	0.7%
MKE–MCO	Milwaukee to Orlando	113	80.5%	-0.9 min	0.0%
MKE–DCA	Milwaukee to Washington	112	76.8%	5.4 min	0.0%
MKE–LAS	Milwaukee to Las Vegas	93	83.9%	-0.5 min	1.1%
MKE–LGA	Milwaukee to New York	92	79.3%	-0.6 min	0.0%
MKE–CLT	Milwaukee to Charlotte	88	81.8%	14.2 min	0.0%
MKE–DFW	Milwaukee to Dallas/Fort Worth	87	86.2%	22.4 min	2.3%

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), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	43.4%	33.5%	18,268
Late-arriving aircraft	31.3%	40.4%	13,155
National Aviation System	15.6%	21.0%	6,570
Extreme weather	9.7%	5.0%	4,072
Security	0.1%	0.1%	26

42,091 delay minutes on 488 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 April 2026?

80.7% of 2,588 scheduled domestic departures left less than 15 minutes late, and 78.9% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 84.1% of 2,316 departures left on time and 0.9% were cancelled, against 80.7% and 2.2% in April 2026.

Provenance

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