Best Time to Fly DCA to GSP: On-Time Stats by Hour & Airline
Ronald Reagan Washington National → Greenville-Spartanburg International
Data through July 2026 · Last updated October 18, 2026
1,018 flights were scheduled from Washington (DCA) to Greer (GSP) in the last 12 months, and 65.6% of those that flew arrived on time, 12.0 points below the US average of 77.6%.
Among 2 airlines, Republic Airways led with 80.4% on time and PSA Airlines was last with 64.7%.
Over 24 months, Saturday was the most reliable day (75% on time) and July the worst month (46%).
The cancellation rate was 4.4% (US average 1.8%).
DCA to GSP 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 | 80.4% | 56 min | 1.9% | 52 |
| PSA Airlines | 64.7% | 86 min | 4.6% | 964 |
| American Airlines | Limited data | 1 | ||
| Envoy Air | Limited data | 1 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DCA to GSP
On-time arrival % by scheduled departure hour (local time), 2,021 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 1 | |
| 8am–9am | 79.0% | 1.8% | 543 |
| 9am–10am | 82.5% | 0.0% | 80 |
| 10am–11am | 79.0% | 3.1% | 64 |
| 11am–12pm | Limited data | 27 | |
| 2pm–3pm | Limited data | 7 | |
| 3pm–4pm | Limited data | 14 | |
| 4pm–5pm | 70.6% | 1.4% | 69 |
| 5pm–6pm | 60.3% | 6.5% | 558 |
| 6pm–7pm | Limited data | 12 | |
| 7pm–8pm | 56.4% | 4.6% | 174 |
| 8pm–9pm | 58.4% | 8.5% | 412 |
| 9pm–10pm | Limited data | 27 | |
| 10pm–11pm | 70.0% | 9.1% | 33 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DCA to GSP
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) | 63.9% | -6.5 pts | 0.0% | 36 |
| Christmas & New Year (Dec 20 - Jan 3) | 65.7% | -4.7 pts | 0.0% | 67 |
| Summer peak (Jun 15 - Aug 15) | 53.3% | -17.1 pts | 9.9% | 354 |
| All other days | 70.4% | — | 3.9% | 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).