Best Time to Fly GSP to DCA: On-Time Stats by Hour & Airline
Greenville-Spartanburg International → Ronald Reagan Washington National
Data through July 2026 · Last updated October 18, 2026
1,017 flights were scheduled from Greer (GSP) to Washington (DCA) in the last 12 months, and 66.0% of those that flew arrived on time, 11.6 points below the US average of 77.6%.
Republic Airways was the most punctual of the 2 airlines on the route at 74.5%, while PSA Airlines trailed at 65.6%.
October has been the best month (82% on time) and Thursday the weakest day of the week (64%).
4.7% of flights were cancelled, versus 1.8% nationally.
GSP to DCA on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airways | 74.5% | 46 min | 1.9% | 52 |
| PSA Airlines | 65.6% | 87 min | 4.9% | 963 |
| American Airlines | Limited data | 1 | ||
| Envoy Air | Limited data | 1 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly GSP to DCA
On-time arrival % by scheduled departure hour (local time), 2,020 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 86.2% | 1.5% | 133 |
| 7am–8am | 77.5% | 3.8% | 586 |
| 8am–9am | Limited data | 4 | |
| 9am–10am | Limited data | 2 | |
| 10am–11am | 72.8% | 2.2% | 359 |
| 11am–12pm | 79.2% | 1.1% | 263 |
| 12pm–1pm | 56.9% | 8.9% | 56 |
| 1pm–2pm | 61.0% | 0.0% | 41 |
| 5pm–6pm | Limited data | 5 | |
| 6pm–7pm | Limited data | 1 | |
| 7pm–8pm | 50.4% | 10.6% | 512 |
| 8pm–9pm | 62.3% | 8.6% | 58 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on GSP to DCA
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 72.2% | +1.7 pts | 0.0% | 36 |
| Christmas & New Year (Dec 20 - Jan 3) | 72.7% | +2.2 pts | 1.5% | 67 |
| Summer peak (Jun 15 - Aug 15) | 65.1% | -5.5 pts | 10.2% | 353 |
| All other days | 70.5% | — | 4.0% | 1,564 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).