Airports › Louisville (SDF) › April 2024
Airport month · April 2024
Louisville Muhammad Ali International in April 2024
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In April 2024, reporting carriers scheduled 2,048 domestic departures from Louisville Muhammad Ali International (SDF). 85.1% left less than 15 minutes late and 83.4% reached their destination on time; 0.5% were cancelled.
Nationally that month, 80.5% of flights departed on time and 80.2% arrived on time, so SDF departures were 4.6 points above the national departure figure.
Flights arriving at SDF that month were on time 81.0% of the time (2,049 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 38%, late-arriving aircraft 34% and national aviation system 24%.
- On time 83.4%
- Arrived 15+ minutes late 15.9%
- Cancelled 0.5%
- Diverted 0.2%
April 2024 against a year earlier, the airport's year and the nation
| Measure | Apr 2024 | Year earlier | SDF, 12 months to Jul 2026 | All reported flights, Apr 2024 |
|---|---|---|---|---|
| Departed on time | 85.1% | — | 80.0% | 80.5% |
| Arrived on time | 83.4% | — | 79.7% | 80.2% |
| Cancelled | 0.5% | — | 2.2% | 0.7% |
| Average departure delay (late minutes only) | 10.4 min | — | 15.9 min | 14.2 min |
| Scheduled departures a day | 68 | — | 63 | 19,406 |
| Scheduled departures | 2,048 | — | 23,144 | 582,185 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| YX Republic Airline | 507 | 25% | 91.1% | -7.6 min | 0.2% |
| WN Southwest Airlines | 440 | 21% | 83.2% | 2.9 min | 0.5% |
| AA American Airlines | 214 | 10% | 72.4% | 11.8 min | 1.9% |
| DL Delta Air Lines | 202 | 10% | 94.6% | -8.7 min | 0.0% |
| OO SkyWest Airlines | 202 | 10% | 84.2% | 4.0 min | 0.5% |
| MQ Envoy Air | 139 | 7% | 66.2% | 9.2 min | 1.4% |
| OH PSA Airlines | 138 | 7% | 71.7% | 13.8 min | 0.0% |
| NK Spirit Airlines | 88 | 4% | 80.7% | 3.5 min | 0.0% |
| UA United Airlines | 57 | 3% | 84.2% | 1.2 min | 0.0% |
| G4 Allegiant Air | 53 | 3% | 86.8% | -3.8 min | 0.0% |
| 9E Endeavor Air | 8 | 0% | 100.0% | -17.0 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| SDF–ATL | Louisville to Atlanta | 250 | 93.6% | -7.2 min | 0.0% |
| SDF–ORD | Louisville to Chicago | 205 | 80.0% | -0.3 min | 0.0% |
| SDF–DFW | Louisville to Dallas/Fort Worth | 180 | 73.3% | 3.8 min | 3.3% |
| SDF–CLT | Louisville to Charlotte | 176 | 69.9% | 17.7 min | 0.0% |
| SDF–LGA | Louisville to New York | 129 | 88.4% | -6.4 min | 1.6% |
| SDF–DTW | Louisville to Detroit | 106 | 90.6% | -8.4 min | 0.0% |
| SDF–MCO | Louisville to Orlando | 101 | 86.1% | 1.1 min | 0.0% |
| SDF–DEN | Louisville to Denver | 90 | 86.7% | 2.3 min | 0.0% |
| SDF–EWR | Louisville to Newark | 90 | 96.7% | -15.1 min | 0.0% |
| SDF–MDW | Louisville to Chicago | 86 | 84.9% | -3.2 min | 0.0% |
| SDF–DCA | Louisville to Washington | 82 | 81.7% | 11.1 min | 0.0% |
| SDF–BWI | Louisville to Baltimore | 77 | 84.4% | -0.6 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left SDF on time in April 2024?
85.1% of 2,048 scheduled domestic departures left less than 15 minutes late, and 83.4% reached their destination on time. The national figures that month were 80.5% and 80.2%.
How does that compare with a year earlier?
April 2023 is outside the 36 months on file, or the airport had too few reported flights that month.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for SDF · methodology · corrections.