Best Time to Fly GSP to LGA: On-Time Stats by Hour & Airline
Greenville-Spartanburg International → LaGuardia
Data through July 2026 · Last updated October 18, 2026
927 flights were scheduled from Greer (GSP) to New York (LGA) in the last 12 months, and 75.3% of those that flew arrived on time, 2.4 points below the US average of 77.6%.
Republic Airways was the only reporting airline with regular flights on this route.
Over 24 months, Saturday was the most reliable day (84% on time) and March the worst month (71%).
The cancellation rate was 5.4% (US average 1.8%).
GSP to LGA 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 | 75.3% | 83 min | 5.4% | 927 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly GSP to LGA
On-time arrival % by scheduled departure hour (local time), 2,186 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 85.1% | 0.0% | 47 |
| 6am–7am | 88.1% | 2.8% | 564 |
| 7am–8am | 79.8% | 6.6% | 91 |
| 8am–9am | 81.8% | 5.7% | 35 |
| 9am–10am | Limited data | 23 | |
| 10am–11am | 83.9% | 1.2% | 172 |
| 11am–12pm | 89.5% | 1.5% | 68 |
| 12pm–1pm | 82.2% | 3.3% | 366 |
| 1pm–2pm | Limited data | 20 | |
| 2pm–3pm | 84.0% | 2.9% | 104 |
| 3pm–4pm | 82.6% | 2.1% | 47 |
| 4pm–5pm | Limited data | 10 | |
| 5pm–6pm | 66.4% | 11.4% | 149 |
| 6pm–7pm | 69.5% | 8.8% | 408 |
| 7pm–8pm | 76.2% | 2.4% | 82 |
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 LGA
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) | 77.4% | -4.5 pts | 1.9% | 54 |
| Christmas & New Year (Dec 20 - Jan 3) | 88.5% | +6.6 pts | 0.0% | 52 |
| Summer peak (Jun 15 - Aug 15) | 73.3% | -8.5 pts | 11.5% | 339 |
| All other days | 81.8% | — | 3.4% | 1,741 |
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).