YX4561
YX4561 (Republic Airways) is a multi-stop service on 27 routes, busiest Pittsburgh to Washington. Of 712 departures recorded from October 2024 to July 2026, 89.8% left on time, according to the US BTS.
- On-time departures89.8%of 712 flights
- Average delay3.9 min
- July 202632▼ 44.8%vs July 2025
- Cancelled1.3%
- Legs flown under this number27
according to the US BTS · Oct 26, 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 | 23 | 31 | ▲ 34.8% |
| February | 12 | 28 | ▲ 133.3% |
| March | 1 | 55 | ▲ 5,400.0% |
| April | 26 | 52 | ▲ 100.0% |
| May | 30 | 56 | ▲ 86.7% |
| June | 52 | 60 | ▲ 15.4% |
| July | 58 | 32 | ▼ 44.8% |
| August | 35 | – | – |
| September | 30 | – | – |
| October | 28 | – | in progress |
| November | 1 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 202 | 314 | ▲ 55.4% |
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 | 95.7% | 86.7% | ▼ 9.4% |
| February | 83.3% | 80.0% | ▼ 4.0% |
| March | 100.0% | 89.1% | ▼ 10.9% |
| April | 96.2% | 88.5% | ▼ 8.0% |
| May | 100.0% | 94.6% | ▼ 5.4% |
| June | 88.2% | 88.3% | ▲ 0.1% |
| July | 80.4% | 93.6% | ▲ 16.4% |
| August | 91.4% | – | – |
| September | 100.0% | – | – |
| October | 100.0% | – | in progress |
| November | 100.0% | – | – |
| December | 72.4% | – | – |
| Year-to-date average (Jan–Jul) | 92.0% | 88.7% | ▼ 3.6% |
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 | 0 | 1 | – |
| February | 0 | 3 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 1 | 0 | ▼ 100.0% |
| July | 2 | 1 | ▼ 50.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 5 | ▲ 25.0% |
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 98.7% 703
- Cancelled 1.3% 9
Share of all recorded flights in the period, all legs. · Oct 26, 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 |
|---|---|---|---|---|
| PIT DCA Pittsburgh International Airport – Ronald Reagan Washington National Airport | 329 | -6.2 min | 97.3% | 146 |
| BOS PHL Boston Logan International Airport – Philadelphia International Airport | 450 | 7.9 min | 87.4% | 123 |
| ORD BHM Chicago O'Hare International Airport – Birmingham-Shuttlesworth International Airport | 941 | 2.0 min | 86.5% | 53 |
| BHM ORD Birmingham-Shuttlesworth International Airport – Chicago O'Hare International Airport | 941 | 5.0 min | 86.5% | 53 |
| PHL HYA Philadelphia International Airport – Cape Cod Gateway Airport | 463 | -2.9 min | 95.4% | 44 |
| DCA PIT Ronald Reagan Washington National Airport – Pittsburgh International Airport | 329 | -6.8 min | 100.0% | 31 |
| PHL CLE Philadelphia International Airport – Cleveland Hopkins International Airport | 583 | -3.7 min | 96.6% | 30 |
| PHL BOS Philadelphia International Airport – Boston Logan International Airport | 450 | 13.6 min | 83.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 4 | 4 | 100.0% | 0 |
| November 2024 | 47 | 47 | 91.5% | 0 |
| December 2024 | 22 | 22 | 86.4% | 0 |
| January 2025 | 23 | 23 | 95.7% | 0 |
| February 2025 | 12 | 12 | 83.3% | 0 |
| March 2025 | 1 | 1 | 100.0% | 0 |
| April 2025 | 26 | 26 | 96.2% | 0 |
| May 2025 | 30 | 29 | 100.0% | 1 |
| June 2025 | 52 | 51 | 88.2% | 1 |
| July 2025 | 58 | 56 | 80.4% | 2 |
| August 2025 | 35 | 35 | 91.4% | 0 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 28 | 28 | 100.0% | 0 |
| November 2025 | 1 | 1 | 100.0% | 0 |
| December 2025 | 29 | 29 | 72.4% | 0 |
| January 2026 | 31 | 30 | 86.7% | 1 |
| February 2026 | 28 | 25 | 80.0% | 3 |
| March 2026 | 55 | 55 | 89.1% | 0 |
| April 2026 | 52 | 52 | 88.5% | 0 |
| May 2026 | 56 | 56 | 94.6% | 0 |
| June 2026 | 60 | 60 | 88.3% | 0 |
| July 2026 | 32 | 31 | 93.6% | 1 |