YX4587
YX4587 (Republic Airways) is a multi-stop service on 18 routes, busiest Pittsburgh to New York. Of 504 departures recorded from October 2024 to July 2026, 87.2% left on time, according to the US BTS.
- On-time departures87.2%of 504 flights
- Average delay5.1 min
- July 202631▲ 0.0%vs July 2025
- Cancelled2.2%
- Legs flown under this number18
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 | 7 | 36 | ▲ 414.3% |
| February | 4 | 12 | ▲ 200.0% |
| March | 1 | 23 | ▲ 2,200.0% |
| April | – | 6 | – |
| May | 50 | 11 | ▼ 78.0% |
| June | 34 | 30 | ▼ 11.8% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 25 | – | – |
| December | 29 | – | – |
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 | 85.7% | 60.0% | ▼ 30.0% |
| February | 100.0% | 66.7% | ▼ 33.3% |
| March | 100.0% | 95.5% | ▼ 4.5% |
| April | – | 80.0% | – |
| May | 94.0% | 100.0% | ▲ 6.4% |
| June | 91.2% | 89.7% | ▼ 1.7% |
| July | 100.0% | 96.4% | ▼ 3.6% |
| August | 96.8% | – | – |
| September | 96.7% | – | – |
| October | 96.8% | – | in progress |
| November | 63.6% | – | – |
| December | 50.0% | – | – |
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 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | – | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 3 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 1 | – | – |
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 97.8% 493
- Cancelled 2.2% 11
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 |
|---|---|---|---|---|
| PIT JFK Pittsburgh International Airport – John F. Kennedy International Airport | 545 | -1.4 min | 95.4% | 245 |
| DCA SYR Ronald Reagan Washington National Airport – Syracuse Hancock International Airport | 480 | 15.7 min | 70.8% | 51 |
| JFK PIT John F. Kennedy International Airport – Pittsburgh International Airport | 545 | 10.2 min | 66.7% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 25 | 25 | 84.0% | 0 |
| December 2024 | 37 | 37 | 91.9% | 0 |
| January 2025 | 7 | 7 | 85.7% | 0 |
| February 2025 | 4 | 4 | 100.0% | 0 |
| March 2025 | 1 | 1 | 100.0% | 0 |
| May 2025 | 50 | 50 | 94.0% | 0 |
| June 2025 | 34 | 34 | 91.2% | 0 |
| July 2025 | 31 | 31 | 100.0% | 0 |
| August 2025 | 31 | 31 | 96.8% | 0 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 31 | 31 | 96.8% | 0 |
| November 2025 | 25 | 22 | 63.6% | 3 |
| December 2025 | 29 | 28 | 50.0% | 1 |
| January 2026 | 36 | 35 | 60.0% | 1 |
| February 2026 | 12 | 12 | 66.7% | 0 |
| March 2026 | 23 | 22 | 95.5% | 1 |
| April 2026 | 6 | 5 | 80.0% | 1 |
| May 2026 | 11 | 11 | 100.0% | 0 |
| June 2026 | 30 | 29 | 89.7% | 1 |
| July 2026 | 31 | 28 | 96.4% | 3 |