Which departure time was most reliable for MDW to BWI?
Among qualifying MDW-to-BWI departure window results, Early morning had the highest on-time rate: 91.8% of 513 flights. Night was lowest at 57.9% across 121 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 513 | 91.8% | 3.1% | 1.6% |
| Late morning | 359 | 83.3% | 8.1% | 1.9% |
| Afternoon | 409 | 75.1% | 14.7% | 3.4% |
| Evening | 450 | 60.0% | 23.1% | 3.8% |
| Night | 121 | 57.9% | 26.4% | 4.1% |
Which weekday was most reliable for MDW to BWI?
Among qualifying MDW-to-BWI weekday results, Tuesday had the highest on-time rate: 84.3% of 248 flights. Sunday was lowest at 69.7% across 287 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 287 | 69.7% | 17.8% | 2.8% |
| Tuesday | 248 | 84.3% | 8.9% | 0.8% |
| Wednesday | 246 | 75.6% | 12.2% | 2.8% |
| Thursday | 273 | 74.7% | 15.4% | 2.9% |
| Friday | 287 | 80.5% | 10.1% | 1.4% |
| Saturday | 224 | 83.5% | 8.0% | 4.5% |
| Sunday | 287 | 69.7% | 17.1% | 4.2% |
Which airline was most reliable for MDW to BWI?
Among qualifying MDW-to-BWI airline results, Frontier Airlines had the highest on-time rate: 78.6% of 84 flights. Southwest Airlines was lowest at 76.4% across 1,768 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 1,768 | 76.4% | 12.8% | 2.8% |
| Frontier Airlines | 84 | 78.6% | 17.9% | 1.2% |
Which month was most reliable for MDW to BWI?
Among qualifying MDW-to-BWI month results, September 2025 had the highest on-time rate: 85.6% of 180 flights. July 2025 was lowest at 61.7% across 188 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 188 | 61.7% | 26.6% | 4.3% |
| August 2025 | 184 | 76.1% | 14.7% | 1.6% |
| September 2025 | 180 | 85.6% | 10.0% | 0.0% |
| October 2025 | 185 | 84.3% | 8.6% | 0.0% |
| November 2025 | 158 | 72.8% | 10.1% | 12.0% |
| December 2025 | 140 | 75.0% | 17.1% | 0.7% |
| January 2026 | 127 | 85.0% | 5.5% | 3.9% |
| February 2026 | 118 | 72.9% | 13.6% | 3.4% |
| March 2026 | 125 | 76.8% | 8.0% | 4.8% |
| April 2026 | 133 | 78.2% | 7.5% | 1.5% |
| May 2026 | 140 | 79.3% | 12.1% | 0.0% |
| June 2026 | 174 | 72.4% | 17.2% | 1.7% |
What drove MDW to BWI delay minutes?
Late aircraft was the largest recorded MDW-to-BWI delay category, accounting for 49.2% of 22,755 BTS-attributed delay minutes during July 2025–June 2026.
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