YX4476
YX4476 (Republic Airways) is a multi-stop service on 22 routes, busiest Louisville to Chicago. Of 438 departures recorded from October 2024 to July 2026, 87.1% left on time, according to the US BTS.
- On-time departures87.1%of 438 flights
- Average delay4.0 min
- July 202630▲ 900.0%vs July 2025
- Cancelled4.8%
- Legs flown under this number22
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 8 | 23 | ▲ 187.5% |
| February | 12 | 26 | ▲ 116.7% |
| March | 28 | 52 | ▲ 85.7% |
| April | 30 | 12 | ▼ 60.0% |
| May | 27 | 2 | ▼ 92.6% |
| June | 26 | 4 | ▼ 84.6% |
| July | 3 | 30 | ▲ 900.0% |
| August | 25 | – | – |
| September | 6 | – | – |
| October | 27 | – | in progress |
| November | 29 | – | – |
| December | 18 | – | – |
| Year to date (Jan–Jul) | 134 | 149 | ▲ 11.2% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 100.0% | 0.0% |
| February | 91.7% | 73.9% | ▼ 19.4% |
| March | 92.6% | 80.8% | ▼ 12.8% |
| April | 90.0% | 75.0% | ▼ 16.7% |
| May | 92.6% | 100.0% | ▲ 8.0% |
| June | 66.7% | 75.0% | ▲ 12.5% |
| July | 50.0% | 84.0% | ▲ 68.0% |
| August | 91.3% | – | – |
| September | 100.0% | – | – |
| October | 84.6% | – | in progress |
| November | 89.3% | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Jul) | 83.4% | 84.1% | ▲ 0.9% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 3 | ▲ 200.0% |
| February | 0 | 3 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 2 | 0 | ▼ 100.0% |
| July | 1 | 5 | ▲ 400.0% |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 5 | 11 | ▲ 120.0% |
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 95.2% 417
- Cancelled 4.8% 21
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SDF ORD Louisville Muhammad Ali International Airport – Chicago O'Hare International Airport | 462 | 1.3 min | 93.2% | 75 |
| DCA JFK Ronald Reagan Washington National Airport – John F. Kennedy International Airport | 342 | 13.2 min | 73.1% | 55 |
| PHL BNA Philadelphia International Airport – Nashville International Airport | 1,084 | -4.5 min | 97.2% | 36 |
| LGA CHS LaGuardia Airport – Charleston International Airport | 1,033 | 2.7 min | 93.1% | 32 |
| CLE JFK Cleveland Hopkins International Airport – John F. Kennedy International Airport | 682 | 5.0 min | 84.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 6 | 6 | 100.0% | 0 |
| November 2024 | 25 | 25 | 96.0% | 0 |
| December 2024 | 19 | 19 | 84.2% | 0 |
| January 2025 | 8 | 7 | 100.0% | 1 |
| February 2025 | 12 | 12 | 91.7% | 0 |
| March 2025 | 28 | 27 | 92.6% | 1 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 27 | 27 | 92.6% | 0 |
| June 2025 | 26 | 24 | 66.7% | 2 |
| July 2025 | 3 | 2 | 50.0% | 1 |
| August 2025 | 25 | 23 | 91.3% | 2 |
| September 2025 | 6 | 6 | 100.0% | 0 |
| October 2025 | 27 | 26 | 84.6% | 1 |
| November 2025 | 29 | 28 | 89.3% | 1 |
| December 2025 | 18 | 17 | 100.0% | 1 |
| January 2026 | 23 | 20 | 100.0% | 3 |
| February 2026 | 26 | 23 | 73.9% | 3 |
| March 2026 | 52 | 52 | 80.8% | 0 |
| April 2026 | 12 | 12 | 75.0% | 0 |
| May 2026 | 2 | 2 | 100.0% | 0 |
| June 2026 | 4 | 4 | 75.0% | 0 |
| July 2026 | 30 | 25 | 84.0% | 5 |