Charlotte (CLT) to Buffalo (BUF): On-Time Performance
Data through May 2026
Charlotte (CLT) to Buffalo (BUF) effectively runs on two schedules. In January 2025, 83% of arrivals were on time; in July 2024 that fell to 59% — a 25-point seasonal swing. Across the full period the route averages 72% on-time against a national 78%. Morning departures also hold up better than evening ones (85% vs 65%), which matters most in the rough months.
- On-time
- 72%
- arrived <15 min late
- Avg delay
- 20 min
- completed flights
- Cancelled
- 1.7%
- Flights/day
- 3.3
- last 12 months
- Duration
- 1h 46m
- scheduled
- Distance
- 546 mi
Best airline from CLT to BUF
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Frontier Airlinesmost reliable | 73% | 16 min | 5.4% | 74 |
| American Airlines | 72% | 21 min | 1.6% | 2,407 |
Monthly on-time trend
Best time to fly from CLT to BUF
Aim for departures around 7 a.m. (89% on-time); avoid 3 p.m. departures (57%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 68% | 21 min |
| Tuesday | 79% | 18 min |
| Wednesdaybest | 79% | 15 min |
| Thursday | 67% | 22 min |
| Friday | 74% | 20 min |
| Saturday | 72% | 19 min |
| Sunday | 67% | 28 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft49%
- Airline operations32%
- National airspace system8%
- Weather10%
Frequently asked questions
- How often are flights from CLT to BUF delayed?
- 28% of CLT–BUF flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 20 minutes.
- Which airline is most reliable from CLT to BUF?
- Frontier Airlines has the best on-time record on this route at 73%, based on 74 flights. 2 airlines flew CLT–BUF frequently enough to compare in this period.
- What is the best time of day to fly from CLT to BUF?
- Departures around 7 a.m. have the best record (89% on-time), while departures around 3 p.m. have the worst (57%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from CLT to BUF?
- The scheduled CLT–BUF flight time averages 1h 46m over 546 miles. Actual arrival times vary — flights on this route land 15+ minutes late 28% of the time.
- How often are CLT to BUF flights cancelled?
- 1.7% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What is the worst month to fly from CLT to BUF?
- July 2024 was the roughest month in this dataset, with only 59% of arrivals on time. The best was January 2025 at 83%. If your dates are flexible, that 25-point gap is worth planning around.
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Based on 2,482 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.