YX4576
YX4576 (Republic Airways) is a multi-stop service on 28 routes, busiest New York to Pittsburgh. Of 423 departures recorded from October 2024 to July 2026, 84.9% left on time, according to the US BTS.
- On-time departures84.9%of 423 flights
- Average delay7.3 min
- July 202610▼ 80.8%vs July 2025
- Cancelled3.1%
- Legs flown under this number28
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 | 3 | 26 | ▲ 766.7% |
| February | 18 | 27 | ▲ 50.0% |
| March | 5 | 31 | ▲ 520.0% |
| April | 26 | 5 | ▼ 80.8% |
| May | 7 | 16 | ▲ 128.6% |
| June | 5 | 4 | ▼ 20.0% |
| July | 52 | 10 | ▼ 80.8% |
| August | 10 | – | – |
| September | 44 | – | – |
| October | 57 | – | in progress |
| November | 22 | – | – |
| December | 26 | – | – |
| Year to date (Jan–Jul) | 116 | 119 | ▲ 2.6% |
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% | 79.2% | ▼ 20.8% |
| February | 88.2% | 88.0% | ▼ 0.3% |
| March | 100.0% | 83.9% | ▼ 16.1% |
| April | 100.0% | 80.0% | ▼ 20.0% |
| May | 100.0% | 73.3% | ▼ 26.7% |
| June | 100.0% | 75.0% | ▼ 25.0% |
| July | 93.8% | 60.0% | ▼ 36.0% |
| August | 60.0% | – | – |
| September | 88.4% | – | – |
| October | 84.2% | – | in progress |
| November | 71.4% | – | – |
| December | 60.0% | – | – |
| Year-to-date average (Jan–Jul) | 97.4% | 77.1% | ▼ 20.9% |
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 | 0 | 2 | – |
| February | 1 | 2 | ▲ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 4 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 5 | 5 | 0.0% |
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 96.9% 410
- Cancelled 3.1% 13
Share of all recorded flights in the period, all legs. · Oct 29, 2024 → Jul 25, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LGA PIT LaGuardia Airport – Pittsburgh International Airport | 538 | 5.1 min | 83.0% | 55 |
| BOS CMH Boston Logan International Airport – John Glenn Columbus International Airport | 1,028 | 1.5 min | 86.3% | 53 |
| ORD STL Chicago O'Hare International Airport – St. Louis Lambert International Airport | 415 | 41.7 min | 64.7% | 36 |
| PHL ATL Philadelphia International Airport – Hartsfield Jackson Atlanta International Airport | 1,072 | 5.5 min | 89.7% | 31 |
| ATL PHL Hartsfield Jackson Atlanta International Airport – Philadelphia International Airport | 1,072 | 11.0 min | 86.2% | 31 |
| ATL DCA Hartsfield Jackson Atlanta International Airport – Ronald Reagan Washington National Airport | 880 | -5.8 min | 100.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 2 | 2 | 100.0% | 0 |
| November 2024 | 23 | 23 | 100.0% | 0 |
| December 2024 | 4 | 4 | 100.0% | 0 |
| January 2025 | 3 | 3 | 100.0% | 0 |
| February 2025 | 18 | 17 | 88.2% | 1 |
| March 2025 | 5 | 5 | 100.0% | 0 |
| April 2025 | 26 | 26 | 100.0% | 0 |
| May 2025 | 7 | 7 | 100.0% | 0 |
| June 2025 | 5 | 5 | 100.0% | 0 |
| July 2025 | 52 | 48 | 93.8% | 4 |
| August 2025 | 10 | 10 | 60.0% | 0 |
| September 2025 | 44 | 43 | 88.4% | 1 |
| October 2025 | 57 | 57 | 84.2% | 0 |
| November 2025 | 22 | 21 | 71.4% | 1 |
| December 2025 | 26 | 25 | 60.0% | 1 |
| January 2026 | 26 | 24 | 79.2% | 2 |
| February 2026 | 27 | 25 | 88.0% | 2 |
| March 2026 | 31 | 31 | 83.9% | 0 |
| April 2026 | 5 | 5 | 80.0% | 0 |
| May 2026 | 16 | 15 | 73.3% | 1 |
| June 2026 | 4 | 4 | 75.0% | 0 |
| July 2026 | 10 | 10 | 60.0% | 0 |