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

Raleigh/Durham, NC (RDU) to Philadelphia, PA (PHL) flight delay odds

70.8% of 2,562 official scheduled RDU-to-PHL flights arrived on time; 18.7% arrived at least 30 minutes late and 3.5% 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
70.8%arrived on time
18.7%30+ min late
3.5%cancelled
2,562scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.9%all scheduled flights
120+ minutes late5.3%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+16.0 mincompleted flights

Which departure time was most reliable for RDU to PHL?

Among qualifying RDU-to-PHL departure window results, Early morning had the highest on-time rate: 83.5% of 673 flights. Evening was lowest at 60.3% across 615 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning67383.5%9.4%2.7%
Late morning45876.0%15.3%2.0%
Afternoon74065.0%22.4%3.2%
Evening61560.3%27.3%5.0%
Night7668.4%17.1%10.5%

Which weekday was most reliable for RDU to PHL?

Among qualifying RDU-to-PHL weekday results, Tuesday had the highest on-time rate: 78.4% of 347 flights. Thursday was lowest at 65.4% across 379 flights.

DayFlightsOn time30+ minCancelled
Monday40466.8%21.3%5.0%
Tuesday34778.4%14.7%2.3%
Wednesday33872.2%16.9%2.1%
Thursday37965.4%21.9%2.9%
Friday39972.7%17.5%2.3%
Saturday29475.9%17.0%2.0%
Sunday40166.6%20.7%7.2%

Which airline was most reliable for RDU to PHL?

Among qualifying RDU-to-PHL airline results, Republic Airways had the highest on-time rate: 81.5% of 216 flights. PSA Airlines was lowest at 67.7% across 656 flights.

AirlineFlightsOn time30+ minCancelled
American Airlines1,10570.8%19.4%2.4%
PSA Airlines65667.7%19.8%4.4%
Frontier Airlines58570.4%20.0%4.6%
Republic Airways21681.5%8.8%3.7%

Which month was most reliable for RDU to PHL?

Among qualifying RDU-to-PHL month results, April 2026 had the highest on-time rate: 83.0% of 235 flights. July 2025 was lowest at 52.5% across 219 flights.

MonthFlightsOn time30+ minCancelled
July 202521952.5%31.1%8.7%
August 202520160.7%29.9%2.0%
September 202520777.8%14.5%0.5%
October 202524572.7%18.8%0.8%
November 202519370.5%18.7%1.0%
December 202519761.4%27.4%3.6%
January 202619469.6%16.0%7.2%
February 202617874.2%13.5%8.4%
March 202619772.6%14.7%5.6%
April 202623583.0%11.9%0.4%
May 202624780.6%11.3%1.6%
June 202624971.1%18.5%4.0%

What drove RDU to PHL delay minutes?

Late aircraft was the largest recorded RDU-to-PHL delay category, accounting for 58.5% of 61,335 BTS-attributed delay minutes during July 2025–June 2026.

Airline22.6%
Late aircraft58.5%
National airspace14.4%
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.