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DelayAtlas

Airport month record

MKEMAR

Milwaukee Mitchell International in March 2026

Departures
2,626
Month
March 2026
National, same month
75.7%
Carriers
9
C−GRADE

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

MKE in March carries a cancellation problem, not just a delay problem: 6.3% of scheduled flights never operate, against 2.9% nationally. Of the ones that do fly, close to three flights in four arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 2,626 flights, of which Southwest Airlines flew 999 at 75.9% on time.

Key figures

On time

74.3%

Arrivals under 15 minutes late, of 2,455 completed departures

Avg delay

98 min

Across delayed arrivals only, not all flights

Cancelled

6.25%

Nationally in March: 2.90%

Whole year

78.1%

MKE across all twelve months

These figures cover 2,626 departures from Milwaukee Mitchell International in March 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

March next to MKE's other months

Against MKE's own year, March ran 4 points worse than the twelve-month rate of 78.1%, which makes it number ten of twelve months, best first. Cancellations are where March stands out: 6.25% of scheduled departures were called off, 2.6 times the airport's rate across the year. Either side of it, February ran 82.7% on time and April 80.7%, so a trip moved by a few weeks would have landed in a better stretch.

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 2026 (this page)2,62674.3%98 min6.25%C−
April 20262,58880.7%86 min2.20%B
May 20262,73580.6%65 min0.73%B+
June 20262,65779.2%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 March

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 25 points, against 11 points between the best and worst carrier.

  • 5am–8am759 flights85.6%
  • 8am–11am451 flights75.2%
  • 11am–2pm474 flights77.8%
  • 2pm–5pm406 flights65.5%
  • 5pm–8pm429 flights61.0%
  • 8pm–5am107 flights62.4%

Scale runs 55% to 90%.

The 5pm–8pm window is where this operation falls apart: 61.0% on time, against 85.6% 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 759 flights scheduled in it.

Across the week, Thursday is the strongest day at 77.5% on time and Saturday the weakest at 69.9%, a spread of 8 points.

On-time rate by day of the week76.0Mon73.9Tue72.8Wed77.5Thu73.0Fri69.9Sat76.5Sun
Monday: 76.0 percent on time. Tuesday: 73.9 percent on time. Wednesday: 72.8 percent on time. Thursday: 77.5 percent on time. Friday: 73.0 percent on time. Saturday: 69.9 percent on time. Sunday: 76.5 percent on time

Carrier by carrier

Which airlines ran best at MKE in March

The choice of carrier is not cosmetic here. Southwest Airlines arrives on time 75.9% of the time; SkyWest Airlines manages 64.6%. Sample sizes sit next to every figure, because a two-point gap across 622 flights means less than a ten-point one.

Carriers at MKE in March 2026
AirlineFlightsOn timeAvg delayCancelledGrade
Southwest Airlines99975.9%64 min4.00%B−
SkyWest Airlines62264.6%121 min8.68%D−
Delta Air Linesthin sample25986.8%79 min6.18%A−
American Airlinesthin sample21978.4%194 min4.11%B−
Republic Airwaysthin sample21476.4%87 min10.28%B−
PSA Airlinesthin sample9272.4%110 min17.39%C−
Frontier Airlinesthin sample8273.1%105 min4.88%C−
United Airlinesthin sample6279.0%108 min0.00%B+
Envoy Airthin sample5175.5%79 min3.92%B−

SkyWest Airlines cancels 8.7% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

Route by route

Busiest routes out of MKE in March

Routes from MKE in March 2026
RouteFlightsOn timeAvg delayCancelledGrade
MKE to ORD · Chicago45164.6%114 min10.42%D−
MKE to ATL · Atlantathin sample18288.2%92 min6.59%A−
MKE to MCO · Orlandothin sample17871.9%81 min3.93%C−
MKE to PHX · Phoenixthin sample16578.0%68 min3.64%B−
MKE to DEN · Denverthin sample15978.7%74 min2.52%B
MKE to DTW · Detroitthin sample14166.2%151 min4.96%C−
MKE to MSP · Minneapolisthin sample11772.7%93 min5.98%C−
MKE to DCA · Washingtonthin sample11563.7%85 min11.30%D−
MKE to LGA · New Yorkthin sample10763.7%100 min14.95%D−
MKE to LAS · Las Vegasthin sample10285.6%50 min4.90%A−
MKE to DFW · Dallas-Fort Worththin sample9378.4%261 min4.30%B−
MKE to CLT · Charlottethin sample8581.0%185 min5.88%B−
MKE to TPA · Tampathin sample8568.8%73 min5.88%C−
MKE to BNA · Nashvillethin sample8379.7%32 min4.82%B−
MKE to RSW · Fort Myersthin sample6876.6%72 min4.41%B−
MKE to EWR · Newarkthin sample5879.2%41 min6.90%B−
MKE to BWI · Baltimorethin sample5685.5%126 min1.79%A
MKE to STL · St. Louisthin sample5478.4%39 min5.56%B−
MKE to MDW · Chicagothin sample5457.1%78 min7.41%D−
MKE to BOS · Bostonthin sample4897.8%173 min4.17%A−
MKE to MIA · Miamithin sample3981.6%39 min2.56%B
MKE to DAL · Dallasthin sample3180.6%53 min0.00%B+
MKE to SLC · Salt Lake Citythin sample3175.9%34 min6.45%B−

Delay causes

What held MKE up in March

Carrier accounts for 44% of the 61,000 delay minutes carriers reported here, and the remaining four split what is left.

  • Carrier
    44%
  • Late-arriving aircraft
    24%
  • National Airspace System
    18%
  • Extreme weather
    14%
  • Security
    0%

Extreme weather accounts for 14% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the comparison with the other months below is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.3 times the usual weather exposure. The split is drawn from 61,361 reported delay minutes.

Cancellations run at 6.25%, against 2.90% nationally. That is about one flight in fifteen cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

11.5% of arrivals land a full hour or more behind schedule, against 9.5% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

What to do with this

Flying from MKE in March

For a March trip through MKE: plan on this being one of the airport's harder months. The 5am–8am departures held up best at 85.6% on time, and with 11.5% of arrivals an hour or more late, a connection here deserves more slack than the same trip in September would.

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.