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DelayAtlas

Airport month record

MKEJUN

Milwaukee Mitchell International in June 2026

Departures
2,657
Month
June 2026
National, same month
74.3%
Carriers
9
BGRADE

Historical statistics for June 2026, not live status or a forecast for this year’s June. For today’s conditions at MKE, see live FAA status.

MKE in June lands a B, 5 points better than the national rate of 74.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 2,657 flights, of which SkyWest Airlines flew 715 at 78.2% on time.

Set against the rest of the country, MKE's June record is 5 points better than the US average of 74.3%. That gap is worth roughly 49 fewer late arrivals for every thousand flights.

Key figures

On time

79.2%

Arrivals under 15 minutes late, of 2,595 completed departures

Avg delay

72 min

Across delayed arrivals only, not all flights

Cancelled

2.11%

Nationally in June: 1.65%

Whole year

78.1%

MKE across all twelve months

These figures cover 2,657 departures from Milwaukee Mitchell International in June 2026. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.

Against the year

June next to MKE's other months

Against MKE's own year, June ran about a point better than the twelve-month rate of 78.1%, which makes it number seven of twelve months, best first. Either side of it, May ran 80.6% on time and July 76.5%, so this month sits in line with its neighbours.

MKE month by month
MonthFlightsOn timeAvg delayCancelledGrade
September 20252,31583.0%64 min0.56%B+
October 20252,56479.6%79 min0.31%B+
November 20252,23079.2%81 min4.26%B−
December 20252,27370.1%92 min1.89%C
January 20262,07773.8%78 min3.71%C−
February 20262,03382.7%79 min1.33%B
March 20262,62674.3%98 min6.25%C−
April 20262,58880.7%86 min2.20%B
May 20262,73580.6%65 min0.73%B+
June 2026 (this page)2,65779.2%72 min2.11%B
July 20262,75976.5%82 min2.97%B
August 20262,71577.2%85 min2.62%B

Departure window

The best time of day to leave MKE in June

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 29 points, against 2 points between the best and worst carrier.

  • 5am–8am782 flights88.8%
  • 8am–11am553 flights87.8%
  • 11am–2pm439 flights76.6%
  • 2pm–5pm337 flights73.2%
  • 5pm–8pm508 flights61.9%
  • 8pm–5am38 flights59.5%

Scale runs 50% to 95%.

The 8pm–5am window is where this operation falls apart: 59.5% on time, against 88.8% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5am–8am window is the busiest, with 782 flights scheduled in it.

Across the week, Tuesday is the strongest day at 84.6% on time and Wednesday the weakest at 73.4%, a spread of 11 points.

On-time rate by day of the week79.9Mon84.6Tue73.4Wed76.1Thu79.9Fri82.7Sat76.2Sun
Monday: 79.9 percent on time. Tuesday: 84.6 percent on time. Wednesday: 73.4 percent on time. Thursday: 76.1 percent on time. Friday: 79.9 percent on time. Saturday: 82.7 percent on time. Sunday: 76.2 percent on time

Carrier by carrier

Which airlines ran best at MKE in June

The two carriers here are closely matched: 2 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.

Carriers at MKE in June 2026
AirlineFlightsOn timeAvg delayCancelledGrade
Southwest Airlines87375.9%56 min0.23%B+
SkyWest Airlines71578.2%80 min1.96%B
Delta Air Linesthin sample33789.2%91 min0.89%A+
Republic Airwaysthin sample24283.9%81 min4.96%B−
American Airlinesthin sample20368.4%97 min3.45%C−
PSA Airlinesthin sample14683.6%75 min12.33%B−
Alaska Airlinesthin sample5983.1%22 min0.00%B+
JetBlue Airwaysthin sample3090.0%71 min0.00%A+
United Airlinesthin sample3086.2%28 min0.00%A+

No carrier stands out. SkyWest tops the table at 78.2%, 2 points clear of the bottom, which is inside the range this kind of sample moves year to year.

Route by route

Busiest routes out of MKE in June

Routes from MKE in June 2026
RouteFlightsOn timeAvg delayCancelledGrade
MKE to ORD · Chicago41773.8%85 min2.88%C
MKE to DEN · Denverthin sample23679.0%49 min0.42%B+
MKE to ATL · Atlantathin sample20189.9%65 min1.00%A
MKE to MSP · Minneapolisthin sample17587.9%98 min0.57%A+
MKE to DTW · Detroitthin sample12582.3%104 min0.80%B+
MKE to DCA · Washingtonthin sample11678.9%81 min5.17%B−
MKE to MCO · Orlandothin sample11584.2%65 min0.87%B+
MKE to LGA · New Yorkthin sample10686.9%80 min6.60%A−
MKE to PHX · Phoenixthin sample9676.0%55 min0.00%B+
MKE to DFW · Dallas-Fort Worththin sample9057.6%129 min5.56%D−
MKE to PHL · Philadelphiathin sample9084.4%64 min14.44%B−
MKE to BNA · Nashvillethin sample8670.9%53 min0.00%C+
MKE to EWR · Newarkthin sample8680.7%88 min3.49%B−
MKE to CLT · Charlottethin sample8473.2%53 min2.38%C
MKE to BWI · Baltimorethin sample8375.6%72 min0.00%B+
MKE to BOS · Bostonthin sample8285.0%66 min2.44%A
MKE to LAS · Las Vegasthin sample8272.0%59 min0.00%C+
MKE to MDW · Chicagothin sample6071.2%40 min0.00%C+
MKE to SEA · Seattlethin sample5983.1%22 min0.00%B+
MKE to STL · St. Louisthin sample5583.6%78 min0.00%B+
MKE to DAL · Dallasthin sample3472.7%48 min0.00%C+
MKE to MCI · Kansas Citythin sample3476.5%35 min0.00%B+
MKE to TPA · Tampathin sample3076.7%35 min0.00%B+
MKE to SLC · Salt Lake Citythin sample3090.0%46 min0.00%A+
MKE to IAH · Houstonthin sample3083.3%62 min0.00%B+

Delay causes

What held MKE up in June

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 39,000 reported delay minutes.

  • Late-arriving aircraft
    41%
  • Carrier
    36%
  • National Airspace System
    19%
  • Extreme weather
    4%
  • Security
    0%

41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 39,000 reported delay minutes here, that single category outweighs weather by 11 to one. The split is drawn from 38,668 reported delay minutes.

Cancellations sit at 2.11% against a national 1.65%, which is ordinary. Diversions add another 0.23%.

7.7% of arrivals land an hour or more late, close to the national 9.7%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

What to do with this

Flying from MKE in June

For a June trip through MKE: expect 79.2% on time and 2.11% cancelled, going by June 2026. The 5am–8am window was the strongest part of the day.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.