Which departure time was most reliable for DCA to DSM?
Among qualifying DCA-to-DSM departure window results, Late morning had the highest on-time rate: 77.2% of 193 flights. Evening was lowest at 57.1% across 226 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Late morning | 193 | 77.2% | 13.0% | 4.1% |
| Afternoon | 161 | 70.8% | 16.1% | 1.9% |
| Evening | 226 | 57.1% | 19.9% | 13.7% |
| Night | 118 | 67.8% | 19.5% | 5.9% |
Which weekday was most reliable for DCA to DSM?
Among qualifying DCA-to-DSM weekday results, Tuesday had the highest on-time rate: 73.1% of 104 flights. Sunday was lowest at 62.4% across 101 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 101 | 72.3% | 15.8% | 7.9% |
| Tuesday | 104 | 73.1% | 18.3% | 1.9% |
| Wednesday | 101 | 68.3% | 18.8% | 5.0% |
| Thursday | 100 | 65.0% | 18.0% | 8.0% |
| Friday | 100 | 66.0% | 13.0% | 6.0% |
| Saturday | 95 | 66.3% | 16.8% | 8.4% |
| Sunday | 101 | 62.4% | 17.8% | 11.9% |
Which airline was most reliable for DCA to DSM?
Among qualifying DCA-to-DSM airline results, Envoy Air had the highest on-time rate: 84.5% of 58 flights. PSA Airlines was lowest at 63.6% across 387 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| PSA Airlines | 387 | 63.6% | 19.9% | 9.6% |
| Republic Airways | 256 | 69.9% | 14.8% | 3.9% |
| Envoy Air | 58 | 84.5% | 6.9% | 3.4% |
| American Airlines | 1 | 100.0% | 0.0% | 0.0% |
Which month was most reliable for DCA to DSM?
Among qualifying DCA-to-DSM month results, October 2025 had the highest on-time rate: 77.4% of 62 flights. July 2025 was lowest at 50.8% across 61 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 61 | 50.8% | 14.8% | 21.3% |
| August 2025 | 62 | 75.8% | 17.7% | 0.0% |
| September 2025 | 60 | 75.0% | 16.7% | 1.7% |
| October 2025 | 62 | 77.4% | 8.1% | 0.0% |
| November 2025 | 55 | 72.7% | 12.7% | 9.1% |
| December 2025 | 45 | 66.7% | 15.6% | 8.9% |
| January 2026 | 57 | 64.9% | 17.5% | 8.8% |
| February 2026 | 56 | 67.9% | 17.9% | 7.1% |
| March 2026 | 62 | 54.8% | 25.8% | 11.3% |
| April 2026 | 60 | 76.7% | 11.7% | 3.3% |
| May 2026 | 62 | 77.4% | 14.5% | 1.6% |
| June 2026 | 60 | 51.7% | 30.0% | 11.7% |
What drove DCA to DSM delay minutes?
Late aircraft was the largest recorded DCA-to-DSM delay category, accounting for 46.2% of 13,577 BTS-attributed delay minutes during July 2025–June 2026.
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