YX4487
YX4487 (Republic Airways) is a multi-stop service on 16 routes, busiest Pittsburgh to New York. Of 753 departures recorded from October 2024 to July 2026, 91.3% left on time, according to the US BTS.
- On-time departures91.3%of 753 flights
- Average delay2.4 min
- July 202631▲ 6.9%vs July 2025
- Cancelled2.1%
- Legs flown under this number16
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 | 48 | 20 | ▼ 58.3% |
| February | 34 | 22 | ▼ 35.3% |
| March | 57 | 48 | ▼ 15.8% |
| April | 60 | 34 | ▼ 43.3% |
| May | 35 | 30 | ▼ 14.3% |
| June | 29 | 30 | ▲ 3.4% |
| July | 29 | 31 | ▲ 6.9% |
| August | 53 | – | – |
| September | 56 | – | – |
| October | 32 | – | in progress |
| November | 24 | – | – |
| December | 15 | – | – |
| Year to date (Jan–Jul) | 292 | 215 | ▼ 26.4% |
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 | 87.0% | 94.7% | ▲ 8.9% |
| February | 91.2% | 100.0% | ▲ 9.7% |
| March | 98.3% | 81.8% | ▼ 16.7% |
| April | 91.7% | 84.4% | ▼ 8.0% |
| May | 91.2% | 93.3% | ▲ 2.4% |
| June | 96.6% | 96.7% | ▲ 0.1% |
| July | 96.4% | 96.8% | ▲ 0.4% |
| August | 73.6% | – | – |
| September | 96.4% | – | – |
| October | 96.9% | – | in progress |
| November | 90.9% | – | – |
| December | 93.3% | – | – |
| Year-to-date average (Jan–Jul) | 93.2% | 92.5% | ▼ 0.7% |
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 | 2 | 1 | ▼ 50.0% |
| February | 0 | 2 | – |
| March | 0 | 4 | – |
| April | 0 | 2 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 9 | ▲ 125.0% |
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 97.9% 737
- Cancelled 2.1% 16
Share of all recorded flights in the period, all legs. · Oct 13, 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 |
|---|---|---|---|---|
| PIT LGA Pittsburgh International Airport – LaGuardia Airport | 538 | 2.9 min | 91.5% | 177 |
| LGA DCA LaGuardia Airport – Ronald Reagan Washington National Airport | 345 | -0.7 min | 91.8% | 153 |
| CMH ORD John Glenn Columbus International Airport – Chicago O'Hare International Airport | 475 | -1.2 min | 95.4% | 130 |
| LGA PIT LaGuardia Airport – Pittsburgh International Airport | 538 | -4.3 min | 95.6% | 115 |
| BWI ORD Baltimore/Washington International Thurgood Marshall Airport – Chicago O'Hare International Airport | 998 | 16.2 min | 90.7% | 44 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 94.1% | 0 |
| November 2024 | 23 | 23 | 95.7% | 0 |
| December 2024 | 26 | 26 | 84.6% | 0 |
| January 2025 | 48 | 46 | 87.0% | 2 |
| February 2025 | 34 | 34 | 91.2% | 0 |
| March 2025 | 57 | 57 | 98.3% | 0 |
| April 2025 | 60 | 60 | 91.7% | 0 |
| May 2025 | 35 | 34 | 91.2% | 1 |
| June 2025 | 29 | 29 | 96.6% | 0 |
| July 2025 | 29 | 28 | 96.4% | 1 |
| August 2025 | 53 | 53 | 73.6% | 0 |
| September 2025 | 56 | 55 | 96.4% | 1 |
| October 2025 | 32 | 32 | 96.9% | 0 |
| November 2025 | 24 | 22 | 90.9% | 2 |
| December 2025 | 15 | 15 | 93.3% | 0 |
| January 2026 | 20 | 19 | 94.7% | 1 |
| February 2026 | 22 | 20 | 100.0% | 2 |
| March 2026 | 48 | 44 | 81.8% | 4 |
| April 2026 | 34 | 32 | 84.4% | 2 |
| May 2026 | 30 | 30 | 93.3% | 0 |
| June 2026 | 30 | 30 | 96.7% | 0 |
| July 2026 | 31 | 31 | 96.8% | 0 |