Which departure time was most reliable for BWI to MKE?
Among qualifying BWI-to-MKE departure window results, Early morning had the highest on-time rate: 93.5% of 168 flights. Night was lowest at 59.6% across 235 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 168 | 93.5% | 3.6% | 0.6% |
| Late morning | 177 | 82.5% | 7.3% | 1.7% |
| Afternoon | 144 | 75.7% | 16.7% | 1.4% |
| Evening | 108 | 64.8% | 15.7% | 1.9% |
| Night | 235 | 59.6% | 24.3% | 2.1% |
Which weekday was most reliable for BWI to MKE?
Among qualifying BWI-to-MKE weekday results, Tuesday had the highest on-time rate: 85.2% of 115 flights. Sunday was lowest at 62.9% across 124 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 130 | 75.4% | 14.6% | 1.5% |
| Tuesday | 115 | 85.2% | 9.6% | 0.0% |
| Wednesday | 111 | 76.6% | 12.6% | 0.9% |
| Thursday | 125 | 73.6% | 13.6% | 0.0% |
| Friday | 131 | 76.3% | 11.5% | 3.8% |
| Saturday | 96 | 74.0% | 14.6% | 1.0% |
| Sunday | 124 | 62.9% | 21.8% | 3.2% |
Which airline was most reliable for BWI to MKE?
Only Southwest Airlines met the BWI-to-MKE airline threshold: 74.7% of 830 scheduled flights arrived on time during July 2025–June 2026.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 830 | 74.7% | 14.1% | 1.6% |
| Spirit Airlines | 2 | 100.0% | 0.0% | 0.0% |
Which month was most reliable for BWI to MKE?
Among qualifying BWI-to-MKE month results, September 2025 had the highest on-time rate: 92.3% of 78 flights. December 2025 was lowest at 61.3% across 75 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 90 | 65.6% | 27.8% | 0.0% |
| August 2025 | 79 | 82.3% | 8.9% | 1.3% |
| September 2025 | 78 | 92.3% | 5.1% | 0.0% |
| October 2025 | 89 | 79.8% | 11.2% | 0.0% |
| November 2025 | 74 | 77.0% | 14.9% | 1.4% |
| December 2025 | 75 | 61.3% | 18.7% | 2.7% |
| January 2026 | 44 | 79.5% | 6.8% | 9.1% |
| February 2026 | 43 | 83.7% | 4.7% | 4.7% |
| March 2026 | 56 | 73.2% | 14.3% | 3.6% |
| April 2026 | 59 | 76.3% | 11.9% | 0.0% |
| May 2026 | 62 | 67.7% | 16.1% | 0.0% |
| June 2026 | 83 | 63.9% | 19.3% | 1.2% |
What drove BWI to MKE delay minutes?
Airline was the largest recorded BWI-to-MKE delay category, accounting for 41.2% of 10,638 BTS-attributed delay minutes during July 2025–June 2026.
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