Airport · MKE · Milwaukee, Wisconsin

Milwaukee, WI

Milwaukee, WI posts below-median on-time performance among the 382 tracked U.S. airports, as a high-volume U.S. airport. According to the U.S. DOT Bureau of Transportation Statistics, drawn from 299,952 flights (2020–2025); its biggest delay driver is carrier.

Compiled by PlainFlights Editorial, Flight Performance Editorial Team

Data updated 2026-06-13

82.3%
On-time: Top 63%
on-time, US airports: 75 min
Delay when late: 1.20%
Cancelled

Key Performance Metrics

Total Flights

299,952

Best Month

Sep 93.9%

Worst Month

Jul 90.2%

Delayed

53,218

Cancelled

3,604

60-65%

1
65-70%

4
70-75%

9
75-80%

48
80-85%

192
85-90%

116
90-95%

12

What this shows MKE is marked in the 80-85% band.

Delay Cause Breakdown

Top delay cause: Carrier. Total delay minutes: 1,811,244.

Late Aircraft 34.5% (625,778 min)

Carrier 38.5% (696,621 min)

NAS (National Aviation System) 21.1% (383,045 min)

Weather 5.8% (104,242 min)

Security 0.1% (1,558 min)

Seasonal Performance Patterns

Monthly averages across all years of data. Best month: September (93.9% on-time). Most delays: July (90.2% on-time).

Month	Avg Flights	Avg Delayed	Avg Cancelled	On-Time %
December	4,122	859	42	90.6%
November	4,147	597	24	93.5%
October	4,462	654	19	93.4%
September	4,137	569	16	93.9%
August	4,396	888	45	91.4%
July	4,367	1,017	50	90.2%
June	3,993	882	39	90.8%
May	3,877	691	26	92.8%
April	4,109	626	139	93.6%
March	4,621	769	86	92.7%
February	3,752	612	41	92.8%
January	4,010	705	75	92.2%

Year-Over-Year Performance

Annual flight volume and on-time trends at MKE.

Year	Flights	Delayed	Cancelled	On-Time %
2025	55,335	5,290	447	90.4%
2024	57,388	4,843	402	91.6%
2023	52,338	4,282	407	91.8%
2022	50,436	4,211	752	91.7%
2021	45,536	3,091	375	93.2%
2020	38,919	1,349	1,221	96.5%

Cancellation & Diversion Analysis

Flight disruption statistics for Milwaukee, WI.

Cancellation Rate

1.20%

3,604 of 299,952 flights

Diversion Rate

0.10%

300 of 299,952 flights

Delay Rate

17.7%

53,218 of 299,952 flights

Monthly Performance

Recent 24 months of flight data.

Period	Flights	Dep Delayed	Arr Delayed	Cancelled	Diverted
Dec 2025	4,549	597	705	43	1
Nov 2025	4,457	388	454	95	5
Oct 2025	5,128	474	522	8	3
Sep 2025	4,628	354	399	13	5
Aug 2025	4,998	522	611	35	10
Jul 2025	5,177	618	771	72	13
Jun 2025	4,966	556	734	38	11
May 2025	4,715	437	570	29	7
Apr 2025	4,633	347	462	21	3
Mar 2025	4,631	396	515	24	9
Feb 2025	3,593	307	416	24	1
Jan 2025	3,860	294	396	45	2
Dec 2024	4,410	440	521	8	6
Nov 2024	4,428	281	333	8	3
Oct 2024	5,130	292	331	19	2
Sep 2024	4,791	293	344	4	2
Aug 2024	5,198	425	641	52	7
Jul 2024	5,227	617	779	64	10
Jun 2024	4,886	461	617	33	5
May 2024	4,813	493	680	26	5
Apr 2024	4,740	338	508	10	4
Mar 2024	5,206	489	576	24	2
Feb 2024	4,239	250	344	9	2
Jan 2024	4,320	464	526	145	3

Top Routes from MKE

Busiest routes to and from Milwaukee, WI.

Route	Flights	On-Time	Distance
MKE (Milwaukee) → DEN (Denver)	14,186	83.7%	896 mi
DEN (Denver) → MKE (Milwaukee)	14,140	77.4%	896 mi
MKE (Milwaukee) → ATL (Atlanta)	13,271	89.2%	669 mi
ATL (Atlanta) → MKE (Milwaukee)	13,175	84.8%	669 mi
ORD (Chicago) → MKE (Milwaukee)	13,040	74.5%	67 mi
MKE (Milwaukee) → ORD (Chicago)	13,035	78.1%	67 mi
MSP (Minneapolis) → MKE (Milwaukee)	9,250	85.3%	297 mi
MKE (Milwaukee) → MSP (Minneapolis)	9,248	87%	297 mi
MCO (Orlando) → MKE (Milwaukee)	8,914	77.3%	1,066 mi
MKE (Milwaukee) → MCO (Orlando)	8,909	81.7%	1,066 mi
DTW (Detroit) → MKE (Milwaukee)	8,178	83.3%	237 mi
MKE (Milwaukee) → DTW (Detroit)	8,178	87.1%	237 mi
PHX (Phoenix) → MKE (Milwaukee)	8,005	79.9%	1,460 mi
MKE (Milwaukee) → PHX (Phoenix)	8,003	85.1%	1,460 mi
LAS (Las Vegas) → MKE (Milwaukee)	7,140	75.3%	1,524 mi
MKE (Milwaukee) → LAS (Las Vegas)	7,131	83%	1,524 mi
MKE (Milwaukee) → CLT (Charlotte)	6,617	83.3%	651 mi
CLT (Charlotte) → MKE (Milwaukee)	6,616	80.4%	651 mi
DFW (Dallas/Fort Worth) → MKE (Milwaukee)	6,590	72.1%	853 mi
MKE (Milwaukee) → DFW (Dallas/Fort Worth)	6,585	76.8%	853 mi

Airports With a Similar On-Time Rate

Other U.S. airports nationwide whose on-time rate is closest to Milwaukee, WI's 82.3%.

Ontario, CA

82.3% on-time 272,856 flights

Oklahoma City, OK

82.3% on-time 248,285 flights

Bozeman, MT

82.3% on-time 117,386 flights

Manchester, NH

82.3% on-time 69,564 flights

Appleton, WI

82.3% on-time 63,493 flights

Atlantic City, NJ

82.3% on-time 34,258 flights

Other Airports in Wisconsin

Compare performance with other Wisconsin airports.

MSN 83.1%

Madison, WI

Madison · 127,239 flights

ATW 82.3%

Appleton, WI

Appleton · 63,493 flights

GRB 85.5%

Green Bay, WI

Green Bay · 48,314 flights

CWA 87.4%

Mosinee, WI

Mosinee · 16,116 flights

LSE 87%

La Crosse, WI

La Crosse · 13,386 flights

RHI 87.3%

Rhinelander, WI

Rhinelander · 9,618 flights

EAU 84.5%

Eau Claire, WI

Eau Claire · 5,152 flights

Keep exploring

More flight data around Milwaukee, WI.

Wisconsin flight data

Statewide on-time and delay aggregates, plus every reporting airport in Wisconsin.

View WI data →

Airport rankings

See where MKE sits among U.S. airports on on-time rate and average delay.

Best on-time airports →

Compare airports

Put MKE head-to-head with another airport on delays and reliability.

Open comparison tool →

What the Data Says About MKE

Milwaukee, WI in Milwaukee, Wisconsin handled 299,952 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 82.3% on-time departure rate. Of those flights, 53,218 experienced delays, 3,604 were cancelled, and 300 were diverted. The cancellation rate works out to 1.20%, the diversion rate to 0.10%, and the average delay when departures run late is 74.9 minutes. These figures are the baseline for comparing MKE against other airports in the same state and nationally.

Breaking down what drives delays at MKE, Carrier leads the pack. Carrier accounts for 38.5% of total delay minutes, followed by Late Aircraft at 34.5% and NAS (National Aviation System) at 21.1%. Weather contributes 5.8% of delay minutes at this airport, while security holds the smallest share at 0.1%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, September runs the cleanest at MKE with a 93.9% on-time rate, while July is the roughest at 90.2% - a 4-point swing between best and worst month. Volume peaks in March, when average flights hit 4,621. The busiest route connecting MKE is to DEN (Denver), with 14,186 flights at a 83.7% on-time rate. Combine these numbers - 82.3% on-time, 74.9-minute average delay, 1.20% cancellation rate, and you have a concrete picture of departure reliability at Milwaukee, WI.

Frequently Asked Questions

What is the on-time performance rate at Milwaukee, WI (MKE)? ▼

Milwaukee, WI has an overall on-time departure rate of 82.3%. Out of 299,952 total flights tracked, 53,218 experienced delays and 3,604 were cancelled.

What is the most common cause of delays at MKE? ▼

The top delay cause at Milwaukee, WI is Carrier. Carrier accounts for 38.5% of all delay minutes.

What is the average delay time at MKE? ▼

The average delay at Milwaukee, WI is 74.9 minutes. This includes delays from carrier issues, weather, National Aviation System constraints, security, and late-arriving aircraft.

What is the best month to fly from MKE? ▼

Based on historical data, September has the best on-time performance at MKE with 93.9% of flights departing on time.

What is the worst month for delays at MKE? ▼

July tends to have the most delays at MKE, with an on-time rate of only 90.2%.

How many routes operate from MKE? ▼

Milwaukee, WI serves at least 20 routes. The busiest route is MKE to DEN (Milwaukee - Denver) with 14,186 flights.

What is the cancellation rate at MKE? ▼

Milwaukee, WI has a cancellation rate of 1.20%, based on 3,604 cancelled flights out of 299,952 total flights tracked.

Flight Guides

Data-driven guides to help you understand airport and flight performance.

Best & Worst Airlines for On-Time Performance

Which carriers consistently outperform peers

Why Flights Get Cancelled

Cancellation causes broken down by data

How to Choose Reliable Flight Routes

Use delay data to pick flights that arrive on time

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Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025). Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.

Read our methodology - how this data is sourced, computed, and verified.

Using MKE's data

An airport-level on-time rate is a starting point, not a guarantee for your specific flight.

Check the busiest route from MKE before you book a connection. See top routes
Travel in September rather than July if your dates are flexible. Seasonal patterns
Scores vary by airline and route within the same airport; check the specific carrier you're flying. Browse airlines

On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.

All airports → | Rankings →

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights Editorial

Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025 Accessed 2026-07-23

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.