About 1 in 6 AA 4466 flights from Philadelphia arrived 15+ minutes late, diverted or cancelled over the past year (18%); 3.3% were cancelled. The typical flight landed 18 minutes early.
AA 4466: PHL → SDF
Scheduled to leave Philadelphia at 8:40 p.m. local time, operated by Republic Airways as YX 4466. Over the past year it arrived on time 82% of the time (180 flights), better than other AA flights on the route at that hour (75%). Last seen in the data Aug 4, 2026.
Usually American Airlines's last flight of the day from Philadelphia to Louisville (99% of days). American Airlines's last PHL–SDF flight was cancelled 4.4% of the time, against 1.8% for its earlier ones. If it's cancelled, the next American Airlines flight is usually around 9:31 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 25 | 88% |
| Tuesday | 26 | 77% |
| Wednesday | 26 | 88% |
| Thursday | 26 | 73% |
| Friday | 26 | 92% |
| Saturday | 26 | 85% |
| Sunday | 25 | 72% |
Why it was late
All flights PHL → SDF · Connecting off AA 4466? Check the risk
Questions
How often is AA 4466 from PHL to SDF late?
American Airlines 4466 from Philadelphia, PA to Louisville, KY arrived 15 or more minutes late, was diverted or was cancelled on 18% of 180 scheduled flights between September 2025 and August 2026. 3.3% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check American Airlines for today's flight. Method.