YX4456
YX4456 (Republic Airways) is a multi-stop service on 26 routes, busiest New York to Nashville. Of 562 departures recorded from October 2024 to July 2026, 81.1% left on time, according to the US BTS.
- On-time departures81.1%of 562 flights
- Average delay11.8 min
- July 202631▲ 287.5%vs July 2025
- Cancelled3.9%
- Legs flown under this number26
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 30 | 23 | ▼ 23.3% |
| February | 28 | 24 | ▼ 14.3% |
| March | 33 | 30 | ▼ 9.1% |
| April | 7 | 51 | ▲ 628.6% |
| May | 4 | 48 | ▲ 1,100.0% |
| June | 26 | 30 | ▲ 15.4% |
| July | 8 | 31 | ▲ 287.5% |
| August | 19 | – | – |
| September | 50 | – | – |
| October | 17 | – | in progress |
| November | 28 | – | – |
| December | 27 | – | – |
| Year to date (Jan–Jul) | 136 | 237 | ▲ 74.3% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 96.4% | 63.6% | ▼ 34.0% |
| February | 85.7% | 81.8% | ▼ 4.5% |
| March | 100.0% | 73.3% | ▼ 26.7% |
| April | 100.0% | 72.6% | ▼ 27.5% |
| May | 50.0% | 86.4% | ▲ 72.7% |
| June | 88.5% | 57.1% | ▼ 35.4% |
| July | 87.5% | 66.7% | ▼ 23.8% |
| August | 100.0% | – | – |
| September | 86.0% | – | – |
| October | 88.2% | – | in progress |
| November | 59.1% | – | – |
| December | 69.2% | – | – |
| Year-to-date average (Jan–Jul) | 86.9% | 71.6% | ▼ 17.5% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 1 | ▼ 50.0% |
| February | 0 | 2 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 4 | – |
| June | 0 | 2 | – |
| July | 0 | 4 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 6 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 2 | 13 | ▲ 550.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 96.1% 540
- Cancelled 3.9% 22
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| JFK BNA John F. Kennedy International Airport – Nashville International Airport | 1,230 | -1.8 min | 92.6% | 96 |
| IND JFK Indianapolis International Airport – John F. Kennedy International Airport | 1,067 | 30.3 min | 65.2% | 72 |
| DCA IND Ronald Reagan Washington National Airport – Indianapolis International Airport | 802 | 16.0 min | 73.8% | 44 |
| IND DCA Indianapolis International Airport – Ronald Reagan Washington National Airport | 802 | 11.5 min | 83.3% | 38 |
| PHL STL Philadelphia International Airport – St. Louis Lambert International Airport | 1,306 | 1.1 min | 91.4% | 35 |
| DCA BOS Ronald Reagan Washington National Airport – Boston Logan International Airport | 641 | 19.6 min | 93.9% | 34 |
| LGA IND LaGuardia Airport – Indianapolis International Airport | 1,060 | 29.0 min | 61.3% | 32 |
| ORD JFK Chicago O'Hare International Airport – John F. Kennedy International Airport | 1,188 | 27.2 min | 73.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 18 | 18 | 94.4% | 0 |
| November 2024 | 8 | 8 | 100.0% | 0 |
| December 2024 | 22 | 22 | 86.4% | 0 |
| January 2025 | 30 | 28 | 96.4% | 2 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 33 | 33 | 100.0% | 0 |
| April 2025 | 7 | 7 | 100.0% | 0 |
| May 2025 | 4 | 4 | 50.0% | 0 |
| June 2025 | 26 | 26 | 88.5% | 0 |
| July 2025 | 8 | 8 | 87.5% | 0 |
| August 2025 | 19 | 19 | 100.0% | 0 |
| September 2025 | 50 | 50 | 86.0% | 0 |
| October 2025 | 17 | 17 | 88.2% | 0 |
| November 2025 | 28 | 22 | 59.1% | 6 |
| December 2025 | 27 | 26 | 69.2% | 1 |
| January 2026 | 23 | 22 | 63.6% | 1 |
| February 2026 | 24 | 22 | 81.8% | 2 |
| March 2026 | 30 | 30 | 73.3% | 0 |
| April 2026 | 51 | 51 | 72.6% | 0 |
| May 2026 | 48 | 44 | 86.4% | 4 |
| June 2026 | 30 | 28 | 57.1% | 2 |
| July 2026 | 31 | 27 | 66.7% | 4 |