Skip to content
WanderNerd
Check a flight

Route Reliability

Charlotte → Buffalo

CLT–BUF · 546 miles · Charlotte Douglas International Airport to Buffalo Niagara International Airport

69
Usually Fine
WanderNerd Reliability Score
72%
Arrive within 15 minutes
15 min
Average arrival delay
2.1%
Cancelled
1,219
Flights in the data

Data through May 2026.

Airlines on this route

  • American Airlines72% on time · 1,218 flights
  • Southwest Airlines100% on time · 1 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

Morning-you made the right choice.

CLT–BUF flights departing between 6–9 AM arrived on time 88% of the time, versus 63% between 3–6 PM.

Sunday scaries are real for this one.

CLT–BUF flights arrived on time 81% of the time on Wednesdays and just 66% on Sundays. That gap is worth planning around.

Trending in the right direction.

CLT–BUF flights arrived on time 76% of the time over the last three months in the data, compared with 67% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon67%(167 flights)
  • Tue80%(171 flights)
  • Wed81%(166 flights)
  • Thu68%(173 flights)
  • Fri69%(169 flights)
  • Sat73%(174 flights)
  • Sun66%(173 flights)
On-time by departure window
  • 6–9 AM88%(51 flights)
  • 9 AM–12 PM84%(387 flights)
  • 12–3 PM64%(47 flights)
  • 3–6 PM63%(365 flights)
  • 6–9 PM73%(56 flights)
  • 9 PM–12 AM66%(287 flights)
On-time trend by month
72%
May

Jun 66% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202566%113
July 202565%117
August 202565%121
September 202584%98
October 202579%121
November 202578%88
December 202563%88
January 202670%82
February 202670%86
March 202679%95
April 202676%91
May 202672%93

Keep nerding

Based on 1,219 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.