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

Louisville, KY (SDF) to Philadelphia, PA (PHL) flight delay odds

85.0% of 602 official scheduled SDF-to-PHL flights arrived on time; 9.5% arrived at least 30 minutes late and 1.7% 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 SIGNALGenerally reliable
85.0%arrived on time
9.5%30+ min late
1.7%cancelled
602scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.5%all scheduled flights
120+ minutes late2.0%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival-3.2 mincompleted flights

Which departure time was most reliable for SDF to PHL?

Among qualifying SDF-to-PHL departure window results, Early morning had the highest on-time rate: 90.6% of 297 flights. Afternoon was lowest at 75.5% across 139 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning29790.6%5.7%1.7%
Late morning6489.1%3.1%4.7%
Afternoon13975.5%15.8%1.4%
Evening10279.4%15.7%0.0%

Which weekday was most reliable for SDF to PHL?

Among qualifying SDF-to-PHL weekday results, Wednesday had the highest on-time rate: 91.2% of 80 flights. Thursday was lowest at 74.5% across 94 flights.

DayFlightsOn time30+ minCancelled
Monday9380.6%14.0%4.3%
Tuesday8186.4%7.4%2.5%
Wednesday8091.2%5.0%0.0%
Thursday9474.5%16.0%1.1%
Friday9187.9%6.6%1.1%
Saturday7290.3%6.9%0.0%
Sunday9186.8%8.8%2.2%

Which airline was most reliable for SDF to PHL?

Among qualifying SDF-to-PHL airline results, Republic Airways had the highest on-time rate: 90.1% of 345 flights. PSA Airlines was lowest at 77.6% across 250 flights.

AirlineFlightsOn time30+ minCancelled
Republic Airways34590.1%6.7%1.4%
PSA Airlines25077.6%13.6%2.0%
American Airlines7100.0%0.0%0.0%

Which month was most reliable for SDF to PHL?

Among qualifying SDF-to-PHL month results, January 2026 had the highest on-time rate: 96.0% of 25 flights. February 2026 was lowest at 75.6% across 45 flights.

MonthFlightsOn time30+ minCancelled
July 20255682.1%14.3%3.6%
August 20253688.9%5.6%2.8%
September 20256689.4%4.5%0.0%
October 20258780.5%13.8%0.0%
December 20251883.3%16.7%0.0%
January 20262596.0%0.0%4.0%
February 20264575.6%11.1%8.9%
March 20266279.0%12.9%1.6%
April 20266287.1%9.7%0.0%
May 20267094.3%2.9%0.0%
June 20266385.7%11.1%1.6%

What drove SDF to PHL delay minutes?

Late aircraft was the largest recorded SDF-to-PHL delay category, accounting for 52.7% of 6,115 BTS-attributed delay minutes during July 2025–June 2026.

Airline36.5%
Late aircraft52.7%
National airspace9.1%
Weather1.7%
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.