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

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

79.2% of 602 official scheduled PHL-to-SDF flights arrived on time; 12.0% 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
79.2%arrived on time
12.0%30+ min late
2.8%cancelled
602scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.1%all scheduled flights
120+ minutes late2.7%all scheduled flights
Diverted0.7%did not reach as scheduled
Average arrival+0.7 mincompleted flights

Which departure time was most reliable for PHL to SDF?

Among qualifying PHL-to-SDF departure window results, Early morning had the highest on-time rate: 86.4% of 59 flights. Afternoon was lowest at 75.6% across 172 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning5986.4%5.1%5.1%
Late morning7185.9%8.5%0.0%
Afternoon17275.6%15.7%1.2%
Evening30078.3%12.0%4.0%

Which weekday was most reliable for PHL to SDF?

Among qualifying PHL-to-SDF weekday results, Saturday had the highest on-time rate: 84.9% of 73 flights. Sunday was lowest at 73.1% across 93 flights.

DayFlightsOn time30+ minCancelled
Monday9184.6%9.9%4.4%
Tuesday8279.3%11.0%2.4%
Wednesday8083.8%8.8%5.0%
Thursday9276.1%14.1%1.1%
Friday9174.7%13.2%2.2%
Saturday7384.9%11.0%1.4%
Sunday9373.1%15.1%3.2%

Which airline was most reliable for PHL to SDF?

Among qualifying PHL-to-SDF airline results, PSA Airlines had the highest on-time rate: 79.5% of 249 flights. Republic Airways was lowest at 79.2% across 346 flights.

AirlineFlightsOn time30+ minCancelled
Republic Airways34679.2%11.6%3.5%
PSA Airlines24979.5%12.4%2.0%
American Airlines771.4%14.3%0.0%

Which month was most reliable for PHL to SDF?

Among qualifying PHL-to-SDF month results, April 2026 had the highest on-time rate: 88.3% of 60 flights. August 2025 was lowest at 63.9% across 36 flights.

MonthFlightsOn time30+ minCancelled
July 20255664.3%19.6%8.9%
August 20253663.9%19.4%5.6%
September 20256686.4%7.6%1.5%
October 20258679.1%15.1%0.0%
December 20251770.6%29.4%0.0%
January 20262673.1%15.4%3.8%
February 20264582.2%2.2%6.7%
March 20266282.3%9.7%3.2%
April 20266088.3%6.7%0.0%
May 20267287.5%5.6%1.4%
June 20266379.4%12.7%3.2%

What drove PHL to SDF delay minutes?

Late aircraft was the largest recorded PHL-to-SDF delay category, accounting for 54.9% of 7,499 BTS-attributed delay minutes during July 2025–June 2026.

Airline22.2%
Late aircraft54.9%
National airspace18.4%
Weather4.1%
Security0.4%
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.