Which departure time was most reliable for DCA to GSP?
Among qualifying DCA-to-GSP departure window results, Late morning had the highest on-time rate: 84.4% of 135 flights. Evening was lowest at 53.5% across 600 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 219 | 74.0% | 15.1% | 2.3% |
| Late morning | 135 | 84.4% | 9.6% | 0.7% |
| Afternoon | 62 | 62.9% | 25.8% | 3.2% |
| Evening | 600 | 53.5% | 30.0% | 7.3% |
Which weekday was most reliable for DCA to GSP?
Among qualifying DCA-to-GSP weekday results, Tuesday had the highest on-time rate: 71.2% of 156 flights. Sunday was lowest at 52.3% across 149 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 152 | 59.9% | 19.1% | 7.9% |
| Tuesday | 156 | 71.2% | 19.9% | 5.1% |
| Wednesday | 153 | 66.0% | 22.9% | 4.6% |
| Thursday | 149 | 59.7% | 27.5% | 3.4% |
| Friday | 150 | 61.3% | 26.0% | 5.3% |
| Saturday | 109 | 69.7% | 18.3% | 2.8% |
| Sunday | 149 | 52.3% | 31.5% | 6.0% |
Which airline was most reliable for DCA to GSP?
Among qualifying DCA-to-GSP airline results, Republic Airways had the highest on-time rate: 78.8% of 52 flights. PSA Airlines was lowest at 61.6% across 960 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| PSA Airlines | 960 | 61.6% | 24.5% | 5.3% |
| Republic Airways | 52 | 78.8% | 13.5% | 1.9% |
| Envoy Air | 5 | 100.0% | 0.0% | 0.0% |
| American Airlines | 1 | 100.0% | 0.0% | 0.0% |
Which month was most reliable for DCA to GSP?
Among qualifying DCA-to-GSP month results, April 2026 had the highest on-time rate: 76.2% of 80 flights. July 2025 was lowest at 42.0% across 88 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 88 | 42.0% | 33.0% | 14.8% |
| August 2025 | 84 | 70.2% | 16.7% | 3.6% |
| September 2025 | 90 | 73.3% | 15.6% | 1.1% |
| October 2025 | 90 | 75.6% | 17.8% | 0.0% |
| November 2025 | 84 | 66.7% | 27.4% | 3.6% |
| December 2025 | 76 | 50.0% | 36.8% | 3.9% |
| January 2026 | 84 | 64.3% | 21.4% | 8.3% |
| February 2026 | 80 | 52.5% | 31.2% | 3.8% |
| March 2026 | 88 | 52.3% | 27.3% | 10.2% |
| April 2026 | 80 | 76.2% | 17.5% | 1.2% |
| May 2026 | 88 | 70.5% | 18.2% | 3.4% |
| June 2026 | 86 | 57.0% | 24.4% | 7.0% |
What drove DCA to GSP delay minutes?
Late aircraft was the largest recorded DCA-to-GSP delay category, accounting for 53.8% of 27,693 BTS-attributed delay minutes during July 2025–June 2026.
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