Best Time to Fly GSP to CLT: On-Time Stats by Hour & Airline
Greenville-Spartanburg International → Charlotte Douglas International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 83.6% of Greer (GSP) to Charlotte (CLT) flights arrived on time (1,504 scheduled flights). That is 6.0 points above the national average of 77.6%.
American Airlines was the most punctual of the 3 airlines on the route at 84.3%, while Envoy Air trailed at 79.7%.
January has been the best month (87% on time) and Monday the weakest day of the week (77%).
2.5% of flights were cancelled, versus 1.8% nationally.
GSP to CLT 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 |
|---|---|---|---|---|
| American Airlines | 84.3% | 86 min | 3.1% | 290 |
| PSA Airlines | 84.0% | 125 min | 2.4% | 1,064 |
| Envoy Air | 79.7% | 48 min | 1.3% | 150 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly GSP to CLT
On-time arrival % by scheduled departure hour (local time), 4,448 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 93.3% | 0.7% | 542 |
| 6am–7am | 87.8% | 3.2% | 439 |
| 7am–8am | 83.3% | 1.2% | 498 |
| 8am–9am | 83.9% | 2.8% | 397 |
| 9am–10am | 79.7% | 2.3% | 302 |
| 10am–11am | 87.5% | 5.2% | 135 |
| 11am–12pm | 83.0% | 0.0% | 206 |
| 12pm–1pm | 79.7% | 1.6% | 366 |
| 1pm–2pm | 93.5% | 0.0% | 77 |
| 2pm–3pm | 69.3% | 1.3% | 317 |
| 4pm–5pm | 71.2% | 1.8% | 382 |
| 5pm–6pm | 76.1% | 8.0% | 50 |
| 6pm–7pm | 58.6% | 0.9% | 429 |
| 7pm–8pm | 58.8% | 5.0% | 120 |
| 8pm–9pm | 67.8% | 2.7% | 188 |
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 CLT
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) | 78.6% | -2.0 pts | 0.0% | 98 |
| Christmas & New Year (Dec 20 - Jan 3) | 79.9% | -0.7 pts | 1.1% | 181 |
| Summer peak (Jun 15 - Aug 15) | 68.5% | -12.1 pts | 1.9% | 580 |
| All other days | 80.6% | — | 2.0% | 3,589 |
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).