Route
SDF → PHL
Louisville Muhammad Ali International Airport Philadelphia International Airport
577 miles
Return route PHL → SDF →
How punctual is this route?
- On-time arrivals
- 84.3%
- Less than 15 minutes late
- Cancelled
- 2.7%
- Of scheduled flights
- Average delay when late
- 86 min
- Flights arriving 15+ minutes late
- Flights tracked
- 634
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 59%
- Airline (crew, maintenance, cleaning) 28%
- Air traffic control & airport 11%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 89.4% | 66 |
| October 2025 | 80.5% | 87 |
| November 2025 | 75.0% | 12 |
| December 2025 | 83.3% | 18 |
| January 2026 | 100.0% | 25 |
| February 2026 | 82.9% | 45 |
| March 2026 | 80.3% | 62 |
| April 2026 | 88.5% | 62 |
| May 2026 | 94.3% | 70 |
| June 2026 | 87.1% | 63 |
| July 2026 | 67.2% | 62 |
| August 2026 | 82.1% | 62 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Republic Airways | 373 | 90.6% | 2.9% | 80 min |
| OH | 254 | 74.5% | 2.4% | 89 min |
| American Airlines | 7 | 100.0% | 0.0% | — |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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