Which departure time was most reliable for DCA to LAS?
Among qualifying DCA-to-LAS departure window results, Late morning had the highest on-time rate: 89.3% of 121 flights. Afternoon was lowest at 47.0% across 319 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 284 | 88.0% | 4.6% | 1.8% |
| Late morning | 121 | 89.3% | 8.3% | 0.0% |
| Afternoon | 319 | 47.0% | 32.9% | 1.3% |
Which weekday was most reliable for DCA to LAS?
Among qualifying DCA-to-LAS weekday results, Saturday had the highest on-time rate: 86.5% of 104 flights. Thursday was lowest at 65.4% across 104 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 104 | 66.3% | 19.2% | 1.0% |
| Tuesday | 106 | 71.7% | 16.0% | 2.8% |
| Wednesday | 104 | 69.2% | 16.3% | 1.9% |
| Thursday | 104 | 65.4% | 26.0% | 0.0% |
| Friday | 104 | 66.3% | 20.2% | 0.0% |
| Saturday | 104 | 86.5% | 7.7% | 0.0% |
| Sunday | 104 | 66.3% | 18.3% | 2.9% |
Which airline was most reliable for DCA to LAS?
Among qualifying DCA-to-LAS airline results, American Airlines had the highest on-time rate: 88.2% of 365 flights. Southwest Airlines was lowest at 52.3% across 365 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| American Airlines | 365 | 88.2% | 6.0% | 1.4% |
| Southwest Airlines | 365 | 52.3% | 29.3% | 1.1% |
Which month was most reliable for DCA to LAS?
Among qualifying DCA-to-LAS month results, March 2026 had the highest on-time rate: 85.5% of 62 flights. June 2026 was lowest at 60.0% across 60 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 62 | 71.0% | 21.0% | 1.6% |
| August 2025 | 62 | 67.7% | 17.7% | 1.6% |
| September 2025 | 60 | 66.7% | 21.7% | 0.0% |
| October 2025 | 62 | 69.4% | 16.1% | 0.0% |
| November 2025 | 60 | 68.3% | 20.0% | 1.7% |
| December 2025 | 62 | 67.7% | 16.1% | 0.0% |
| January 2026 | 62 | 66.1% | 11.3% | 8.1% |
| February 2026 | 56 | 71.4% | 17.9% | 1.8% |
| March 2026 | 62 | 85.5% | 6.5% | 0.0% |
| April 2026 | 60 | 71.7% | 21.7% | 0.0% |
| May 2026 | 62 | 77.4% | 17.7% | 0.0% |
| June 2026 | 60 | 60.0% | 25.0% | 0.0% |
What drove DCA to LAS delay minutes?
Late aircraft was the largest recorded DCA-to-LAS delay category, accounting for 39.7% of 12,561 BTS-attributed delay minutes during July 2025–June 2026.
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