Baltimore (BWI) to Milwaukee (MKE): On-Time Performance
Data through July 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 62%), which matters most in the rough months.
- On-time
- 76%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 2.3
- last 12 months
- Duration
- 2h 5m
- scheduled
- Distance
- 641 mi
Monthly on-time trend
Best time to fly from BWI to MKE
Aim for departures around 8 a.m. (93% on-time); avoid 6 p.m. departures (46%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 75% | 17 min |
| Tuesday | 82% | 11 min |
| Wednesdaybest | 82% | 11 min |
| Thursday | 76% | 15 min |
| Friday | 73% | 16 min |
| Saturday | 72% | 17 min |
| Sunday | 71% | 18 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 operations42%
- National airspace system14%
- Weather4%
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 2024-07 and 2026-07. 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 (93% on-time), while departures around 6 p.m. have the worst (46%). 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?
- 1.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, 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 1,802 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.