Which departure time was most reliable for DTW to IAD?
Among qualifying DTW-to-IAD departure window results, Early morning had the highest on-time rate: 89.9% of 217 flights. Night was lowest at 64.4% across 278 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 217 | 89.9% | 6.5% | 0.5% |
| Late morning | 135 | 71.1% | 18.5% | 1.5% |
| Afternoon | 369 | 68.8% | 23.0% | 1.4% |
| Evening | 116 | 77.6% | 12.9% | 1.7% |
| Night | 278 | 64.4% | 24.8% | 1.4% |
Which weekday was most reliable for DTW to IAD?
Among qualifying DTW-to-IAD weekday results, Saturday had the highest on-time rate: 79.0% of 162 flights. Monday was lowest at 64.2% across 159 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 159 | 64.2% | 24.5% | 1.3% |
| Tuesday | 153 | 75.8% | 20.3% | 0.0% |
| Wednesday | 148 | 75.0% | 16.9% | 1.4% |
| Thursday | 164 | 75.6% | 18.3% | 0.6% |
| Friday | 168 | 71.4% | 17.9% | 1.2% |
| Saturday | 162 | 79.0% | 13.0% | 0.6% |
| Sunday | 161 | 70.2% | 19.9% | 3.7% |
Which airline was most reliable for DTW to IAD?
Among qualifying DTW-to-IAD airline results, Delta Air Lines had the highest on-time rate: 87.2% of 94 flights. SkyWest Airlines was lowest at 67.5% across 754 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| SkyWest Airlines | 754 | 67.5% | 22.9% | 1.3% |
| Republic Airways | 228 | 82.9% | 10.1% | 1.3% |
| Delta Air Lines | 94 | 87.2% | 9.6% | 1.1% |
| United Airlines | 39 | 87.2% | 7.7% | 0.0% |
Which month was most reliable for DTW to IAD?
Among qualifying DTW-to-IAD month results, April 2026 had the highest on-time rate: 89.0% of 109 flights. January 2026 was lowest at 50.0% across 90 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 85 | 58.8% | 28.2% | 3.5% |
| August 2025 | 82 | 73.2% | 18.3% | 0.0% |
| September 2025 | 79 | 88.6% | 6.3% | 0.0% |
| October 2025 | 89 | 84.3% | 9.0% | 0.0% |
| November 2025 | 35 | 68.6% | 25.7% | 0.0% |
| December 2025 | 75 | 58.7% | 28.0% | 1.3% |
| January 2026 | 90 | 50.0% | 32.2% | 4.4% |
| February 2026 | 78 | 62.8% | 28.2% | 1.3% |
| March 2026 | 128 | 60.9% | 28.1% | 2.3% |
| April 2026 | 109 | 89.0% | 9.2% | 0.0% |
| May 2026 | 145 | 82.8% | 11.0% | 0.7% |
| June 2026 | 120 | 85.0% | 10.8% | 0.8% |
What drove DTW to IAD delay minutes?
Airline was the largest recorded DTW-to-IAD delay category, accounting for 70.8% of 24,855 BTS-attributed delay minutes during July 2025–June 2026.
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