BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
BUF→PHL

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

77.4% of 319 official scheduled BUF-to-PHL flights arrived on time; 13.5% arrived at least 30 minutes late and 2.8% 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 SIGNALVariable
77.4%arrived on time
13.5%30+ min late
2.8%cancelled
319scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.0%all scheduled flights
120+ minutes late6.0%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+15.7 mincompleted flights

Which departure time was most reliable for BUF to PHL?

Among qualifying BUF-to-PHL departure window results, Early morning had the highest on-time rate: 79.0% of 248 flights. Afternoon was lowest at 75.0% across 44 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning24879.0%11.7%3.2%
Afternoon4475.0%18.2%2.3%

Which weekday was most reliable for BUF to PHL?

Among qualifying BUF-to-PHL weekday results, Wednesday had the highest on-time rate: 84.8% of 46 flights. Monday was lowest at 69.4% across 49 flights.

DayFlightsOn time30+ minCancelled
Monday4969.4%16.3%8.2%
Tuesday5280.8%11.5%1.9%
Wednesday4684.8%13.0%0.0%
Thursday4281.0%9.5%4.8%
Friday4376.7%9.3%0.0%
Saturday4671.7%19.6%2.2%
Sunday4178.0%14.6%2.4%

Which airline was most reliable for BUF to PHL?

Among qualifying BUF-to-PHL airline results, Republic Airways had the highest on-time rate: 82.7% of 133 flights. PSA Airlines was lowest at 73.6% across 174 flights.

AirlineFlightsOn time30+ minCancelled
PSA Airlines17473.6%14.9%2.9%
Republic Airways13382.7%11.3%2.3%
American Airlines1275.0%16.7%8.3%

Which month was most reliable for BUF to PHL?

Among qualifying BUF-to-PHL month results, September 2025 had the highest on-time rate: 100.0% of 15 flights. December 2025 was lowest at 45.5% across 22 flights.

MonthFlightsOn time30+ minCancelled
July 20255669.6%19.6%0.0%
September 202515100.0%0.0%0.0%
October 20256178.7%13.1%0.0%
November 20253066.7%23.3%6.7%
December 20252245.5%27.3%18.2%
February 20261681.2%6.2%6.2%
March 20263180.6%16.1%3.2%
April 20263086.7%6.7%3.3%
May 20263090.0%3.3%0.0%
June 20261782.4%11.8%0.0%

What drove BUF to PHL delay minutes?

Airline was the largest recorded BUF-to-PHL delay category, accounting for 50.4% of 7,439 BTS-attributed delay minutes during July 2025–June 2026.

Airline50.4%
Late aircraft35.0%
National airspace9.5%
Weather5.0%
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.