FlightRecord

Baltimore (BWI) to Milwaukee (MKE): On-Time Performance

Data through May 2026

The calendar drives reliability on BWI–MKE. September 2025 flights landed on schedule 92% of the time, but July 2024 dropped to 60% — a gap of 32 points. Across the full period the route averages 76% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 64%), which matters most in the rough months.

On-time
76%
arrived <15 min late
Avg delay
15 min
completed flights
Cancelled
1.2%
Flights/day
2.3
last 12 months
Duration
2h 5m
scheduled
Distance
641 mi

Monthly on-time trend

Monthly on-time percentage for BWI to MKE flights50%75%100%June 2024: 63% on-time (83 flights)63Jun 2024July 2024: 60% on-time (88 flights)60August 2024: 61% on-time (104 flights)61September 2024: 86% on-time (94 flights)86Sep 2024October 2024: 87% on-time (88 flights)87November 2024: 84% on-time (73 flights)84December 2024: 75% on-time (73 flights)75Dec 2024January 2025: 86% on-time (45 flights)86February 2025: 88% on-time (43 flights)88March 2025: 82% on-time (55 flights)82Mar 2025April 2025: 76% on-time (59 flights)76May 2025: 75% on-time (69 flights)75June 2025: 73% on-time (91 flights)73Jun 2025July 2025: 66% on-time (90 flights)66August 2025: 83% on-time (79 flights)83September 2025: 92% on-time (78 flights)92Sep 2025October 2025: 80% on-time (89 flights)80November 2025: 78% on-time (74 flights)78December 2025: 63% on-time (75 flights)63Dec 2025January 2026: 88% on-time (44 flights)88February 2026: 88% on-time (43 flights)88March 2026: 76% on-time (56 flights)76Mar 2026April 2026: 76% on-time (59 flights)76May 2026: 68% on-time (62 flights)68

Best time to fly from BWI to MKE

Aim for departures around 8 a.m. (92% on-time); avoid 10 p.m. departures (53%).

On-time percentage by scheduled departure hour, BWI to MKE8 a.m.: 92% on-time (336 flights)89 a.m.: 86% on-time (146 flights)910 a.m.: 87% on-time (111 flights)1011 a.m.: 82% on-time (57 flights)1112 p.m.: 83% on-time (31 flights)121 p.m.: 63% on-time (27 flights)132 p.m.: 84% on-time (132 flights)143 p.m.: 77% on-time (107 flights)154 p.m.: 54% on-time (65 flights)165 p.m.: 82% on-time (38 flights)177 p.m.: 66% on-time (77 flights)198 p.m.: 76% on-time (134 flights)209 p.m.: 61% on-time (272 flights)2110 p.m.: 53% on-time (136 flights)22scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday77%15 min
Tuesdaybest82%11 min
Wednesday81%13 min
Thursday76%14 min
Friday74%16 min
Saturday75%15 min
Sunday69%19 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft40%
  • Airline operations41%
  • National airspace system16%
  • Weather3%

Frequently asked questions

How often are flights from BWI to MKE delayed?
24% of BWI–MKE flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 15 minutes.
What is the best time of day to fly from BWI to MKE?
Departures around 8 a.m. have the best record (92% on-time), while departures around 10 p.m. have the worst (53%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
How long is the flight from BWI to MKE?
The scheduled BWI–MKE flight time averages 2h 5m over 641 miles. Actual arrival times vary — flights on this route land 15+ minutes late 24% of the time.
How often are BWI to MKE flights cancelled?
1.2% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
What is the worst month to fly from BWI to MKE?
July 2024 was the roughest month in this dataset, with only 60% of arrivals on time. The best was September 2025 at 92%. If your dates are flexible, that 32-point gap is worth planning around.

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Based on 1,714 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.