YX4750
YX4750 (Republic Airways) is a multi-stop service on 11 routes, busiest Louisville to Philadelphia. Of 422 departures recorded from October 2024 to July 2026, 87.5% left on time, according to the US BTS.
- On-time departures87.5%of 422 flights
- Average delay7.3 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.2%
- Legs flown under this number11
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 5 | – |
| February | 8 | 4 | ▼ 50.0% |
| March | 4 | 4 | 0.0% |
| April | 54 | 25 | ▼ 53.7% |
| May | 34 | 31 | ▼ 8.8% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 6 | – | – |
| December | 9 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0.0% | – |
| February | 100.0% | 50.0% | ▼ 50.0% |
| March | 100.0% | 75.0% | ▼ 25.0% |
| April | 87.0% | 96.0% | ▲ 10.3% |
| May | 94.1% | 100.0% | ▲ 6.2% |
| June | 86.2% | 89.7% | ▲ 4.0% |
| July | 83.9% | 83.9% | 0.0% |
| August | 93.6% | – | – |
| September | 90.0% | – | – |
| October | 87.1% | – | in progress |
| November | 100.0% | – | – |
| December | 44.4% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | 2 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 1 | 0.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.8% 417
- Cancelled 1.2% 5
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SDF PHL Louisville Muhammad Ali International Airport – Philadelphia International Airport | 926 | 2.2 min | 90.5% | 318 |
| ORD LIT Chicago O'Hare International Airport – Bill & Hillary Clinton National Airport/Adams Field | 889 | -4.2 min | 93.6% | 31 |
| LIT ORD Bill & Hillary Clinton National Airport/Adams Field – Chicago O'Hare International Airport | 889 | 5.2 min | 83.9% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 18 | 18 | 94.4% | 0 |
| November 2024 | 5 | 5 | 80.0% | 0 |
| December 2024 | 1 | 1 | 0.0% | 0 |
| February 2025 | 8 | 6 | 100.0% | 2 |
| March 2025 | 4 | 4 | 100.0% | 0 |
| April 2025 | 54 | 54 | 87.0% | 0 |
| May 2025 | 34 | 34 | 94.1% | 0 |
| June 2025 | 30 | 29 | 86.2% | 1 |
| July 2025 | 31 | 31 | 83.9% | 0 |
| August 2025 | 31 | 31 | 93.6% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 87.1% | 0 |
| November 2025 | 6 | 5 | 100.0% | 1 |
| December 2025 | 9 | 9 | 44.4% | 0 |
| January 2026 | 5 | 5 | 0.0% | 0 |
| February 2026 | 4 | 4 | 50.0% | 0 |
| March 2026 | 4 | 4 | 75.0% | 0 |
| April 2026 | 25 | 25 | 96.0% | 0 |
| May 2026 | 31 | 31 | 100.0% | 0 |
| June 2026 | 30 | 29 | 89.7% | 1 |
| July 2026 | 31 | 31 | 83.9% | 0 |