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Route Reliability

Philadelphia → Buffalo

PHL–BUF · 279 miles · Philadelphia International Airport to Buffalo Niagara International Airport

71
Usually Fine
WanderNerd Reliability Score
78%
Arrive within 15 minutes
10 min
Average arrival delay
3.0%
Cancelled
1,346
Flights in the data

Data through May 2026.

American Airlines is the only airline in this data on this route, arriving on time 78% of the time across 1,346 flights. No comparison to make.

What the data says

Morning flights do better here.

PHL–BUF flights departing between 6–9 AM arrived on time 93% of the time, versus 66% between 6–9 PM.

Sunday scaries are real for this one.

PHL–BUF flights arrived on time 84% of the time on Tuesdays. On Sundays: 72%.

Keep a backup plan handy.

This route was cancelled 3.0% of the time. Typical for U.S. flights is around 1–2%.

Trending in the right direction.

PHL–BUF flights arrived on time 84% of the time over the last three months in the data, compared with 75% 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
  • Mon77%(183 flights)
  • Tue84%(183 flights)
  • Wed82%(185 flights)
  • Thu78%(188 flights)
  • Fri78%(194 flights)
  • Sat76%(173 flights)
  • Sun72%(191 flights)
On-time by departure window
  • 6–9 AM93%(107 flights)
  • 9 AM–12 PM82%(306 flights)
  • 12–3 PM80%(342 flights)
  • 3–6 PM72%(95 flights)
  • 6–9 PM66%(142 flights)
  • 9 PM–12 AM73%(305 flights)
On-time trend by month
85%
May

Jun 59% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%109
July 202570%113
August 202581%166
September 202586%139
October 202580%145
November 202577%90
December 202567%87
January 202683%86
February 202677%77
March 202680%90
April 202688%89
May 202685%106

Keep nerding

Based on 1,346 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.