Best Time to Fly BUF to CLT: On-Time Stats by Hour & Airline
Buffalo Niagara International → Charlotte Douglas International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 78.9% of Buffalo (BUF) to Charlotte (CLT) flights arrived on time (1,165 scheduled flights). That is 1.3 points above the national average of 77.6%.
American Airlines was the only reporting airline with regular flights on this route.
April has been the best month (88% on time) and Monday the weakest day of the week (73%).
1.7% of flights were cancelled, versus 1.8% nationally.
BUF 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 | 78.9% | 93 min | 1.7% | 1,164 |
| Southwest Airlines | Limited data | 1 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BUF to CLT
On-time arrival % by scheduled departure hour (local time), 2,402 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 24 | |
| 6am–7am | 87.5% | 1.6% | 555 |
| 7am–8am | 83.9% | 6.9% | 101 |
| 8am–9am | 88.9% | 2.2% | 46 |
| 9am–10am | Limited data | 9 | |
| 10am–11am | 96.0% | 0.0% | 100 |
| 11am–12pm | 83.9% | 0.7% | 294 |
| 12pm–1pm | 80.2% | 4.0% | 100 |
| 1pm–2pm | 77.0% | 0.8% | 369 |
| 2pm–3pm | 82.3% | 1.9% | 52 |
| 3pm–4pm | Limited data | 27 | |
| 4pm–5pm | Limited data | 15 | |
| 5pm–6pm | Limited data | 18 | |
| 6pm–7pm | 76.4% | 2.9% | 170 |
| 7pm–8pm | 65.3% | 2.1% | 486 |
| 8pm–9pm | Limited data | 26 | |
| 10pm–11pm | Limited data | 10 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BUF 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) | 78.0% | -2.9 pts | 0.0% | 41 |
| Christmas & New Year (Dec 20 - Jan 3) | 69.5% | -11.4 pts | 2.4% | 84 |
| Summer peak (Jun 15 - Aug 15) | 72.0% | -9.0 pts | 2.4% | 454 |
| All other days | 80.9% | — | 1.6% | 1,823 |
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).