BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
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PHL→BUF

Philadelphia, PA (PHL) to Buffalo, NY (BUF) flight delay odds

64.5% of 318 official scheduled PHL-to-BUF flights arrived on time; 20.4% arrived at least 30 minutes late and 6.3% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALHigher disruption
64.5%arrived on time
20.4%30+ min late
6.3%cancelled
318scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late11.9%all scheduled flights
120+ minutes late6.6%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+26.1 mincompleted flights

Which departure time was most reliable for PHL to BUF?

Among qualifying PHL-to-BUF departure window results, Night had the highest on-time rate: 63.7% of 215 flights. Evening was lowest at 56.1% across 57 flights.

Departure windowFlightsOn time30+ minCancelled
Evening5756.1%28.1%5.3%
Night21563.7%19.1%7.4%

Which weekday was most reliable for PHL to BUF?

Among qualifying PHL-to-BUF weekday results, Tuesday had the highest on-time rate: 80.4% of 46 flights. Monday was lowest at 58.3% across 48 flights.

DayFlightsOn time30+ minCancelled
Monday4858.3%16.7%12.5%
Tuesday4680.4%10.9%2.2%
Wednesday4669.6%10.9%13.0%
Thursday4463.6%20.5%2.3%
Friday4461.4%29.5%2.3%
Saturday4459.1%22.7%6.8%
Sunday4658.7%32.6%4.3%

Which airline was most reliable for PHL to BUF?

Among qualifying PHL-to-BUF airline results, Republic Airways had the highest on-time rate: 73.7% of 133 flights. PSA Airlines was lowest at 59.0% across 173 flights.

AirlineFlightsOn time30+ minCancelled
PSA Airlines17359.0%23.7%7.5%
Republic Airways13373.7%15.8%4.5%
American Airlines1241.7%25.0%8.3%

Which month was most reliable for PHL to BUF?

Among qualifying PHL-to-BUF month results, June 2026 had the highest on-time rate: 94.1% of 17 flights. December 2025 was lowest at 42.9% across 21 flights.

MonthFlightsOn time30+ minCancelled
July 20255750.9%28.1%12.3%
September 20251566.7%20.0%0.0%
October 20256274.2%14.5%1.6%
November 20253056.7%26.7%6.7%
December 20252142.9%23.8%19.0%
February 20261752.9%23.5%11.8%
March 20263167.7%22.6%6.5%
April 20263080.0%10.0%3.3%
May 20262969.0%17.2%3.4%
June 20261794.1%5.9%0.0%

What drove PHL to BUF delay minutes?

Late aircraft was the largest recorded PHL-to-BUF delay category, accounting for 58.5% of 9,509 BTS-attributed delay minutes during July 2025–June 2026.

Airline25.9%
Late aircraft58.5%
National airspace11.1%
Weather4.4%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.