CLT to BUF flight delays & on-time performance
Nonstop flights from Charlotte Douglas International Airport to Buffalo Niagara International Airport · 546 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at CLT or BUF right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Charlotte (CLT) to Buffalo (BUF) arrived on time 73% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.6% were cancelled, and 9% arrived an hour or more late.
- Departures scheduled around 10am did best (88% on time); around 5pm did worst (58%).
- Wednesday was the most reliable day to fly (83% on time) and Monday the least (63%).
- The largest source of delay minutes was late-arriving aircraft (54%).
Which airline is most on time from CLT to BUF?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 100% | 0.0% | 0 min | 0.0% | 1 |
| American Airlines | 73% | 1.6% | 19 min | 9.3% | 1,164 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am88%66 flights
- 10am88%115 flights
- 11am84%209 flights
- 12pm71%14 flights
- 1pm58%26 flights
- 4pm66%305 flights
- 5pm58%64 flights
- 7pm79%38 flights
- 8pm60%43 flights
- 9pm72%115 flights
- 10pm64%159 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday63%3.6% cancelled
- Tuesday83%0.6% cancelled
- Wednesday83%1.3% cancelled
- Thursday72%0.0% cancelled
- Friday68%1.2% cancelled
- Saturday72%2.3% cancelled
- Sunday68%2.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft54%
- Airline (crew, maintenance, cleaning, fueling)32%
- Air traffic control & airport congestion9%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather89%
- Airline (crew, maintenance, cleaning, fueling)11%
- Air traffic control & airport congestion0%
- Security0%
CLT to BUF: common questions
- How often are CLT to BUF flights on time?
- 73% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Charlotte to Buffalo cancelled?
- 1.6% of scheduled flights were cancelled (19 of 1,165).
- How long are typical delays?
- Across all flights the average arrival delay was 19 min (early arrivals count as zero). Flights that were late arrived 66 min behind schedule on average, and 9.2% of flights were an hour or more late.
- How long is taxi time at CLT?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BUF to CLT — 79% on time
More flights from Charlotte
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: CLT → BUF, nonstop flights by US airlines that report to the DOT. How we calculate this.