YX4531
YX4531 (Republic Airways) is a multi-stop service on 3 routes, busiest Pittsburgh to Raleigh. Of 597 departures recorded from October 2024 to July 2026, 96.4% left on time, according to the US BTS.
- On-time departures96.4%of 597 flights
- Average delay-3.3 min
- July 202631▲ 0.0%vs July 2025
- Cancelled2.0%
- Legs flown under this number3
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 | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 6 | ▼ 80.0% |
| May | 26 | 11 | ▼ 57.7% |
| June | 29 | 30 | ▲ 3.4% |
| July | 31 | 31 | 0.0% |
| August | 27 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 27 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 206 | 168 | ▼ 18.4% |
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 | 100.0% | 89.3% | ▼ 10.7% |
| February | 92.6% | 100.0% | ▲ 8.0% |
| March | 100.0% | 96.2% | ▼ 3.8% |
| April | 100.0% | 83.3% | ▼ 16.7% |
| May | 96.2% | 81.8% | ▼ 14.9% |
| June | 96.6% | 100.0% | ▲ 3.6% |
| July | 100.0% | 93.6% | ▼ 6.5% |
| August | 92.6% | – | – |
| September | 100.0% | – | – |
| October | 100.0% | – | in progress |
| November | 96.3% | – | – |
| December | 96.7% | – | – |
| Year-to-date average (Jan–Jul) | 97.9% | 92.0% | ▼ 6.0% |
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 | 1 | 3 | ▲ 200.0% |
| February | 1 | 0 | ▼ 100.0% |
| March | 1 | 5 | ▲ 400.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 8 | ▲ 100.0% |
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 98.0% 585
- Cancelled 2.0% 12
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 RDU Pittsburgh International Airport – Raleigh-Durham International Airport | 528 | -4.4 min | 96.8% | 530 |
| BTV DCA Patrick Leahy Burlington International Airport – Ronald Reagan Washington National Airport | 703 | 7.9 min | 91.2% | 37 |
| MSP ORD Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Chicago O'Hare International Airport | 537 | 4.6 min | 96.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 27 | 27 | 96.3% | 0 |
| December 2024 | 31 | 31 | 90.3% | 0 |
| January 2025 | 31 | 30 | 100.0% | 1 |
| February 2025 | 28 | 27 | 92.6% | 1 |
| March 2025 | 31 | 30 | 100.0% | 1 |
| April 2025 | 30 | 30 | 100.0% | 0 |
| May 2025 | 26 | 26 | 96.2% | 0 |
| June 2025 | 29 | 29 | 96.6% | 0 |
| July 2025 | 31 | 30 | 100.0% | 1 |
| August 2025 | 27 | 27 | 92.6% | 0 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 31 | 31 | 100.0% | 0 |
| November 2025 | 27 | 27 | 96.3% | 0 |
| December 2025 | 30 | 30 | 96.7% | 0 |
| January 2026 | 31 | 28 | 89.3% | 3 |
| February 2026 | 28 | 28 | 100.0% | 0 |
| March 2026 | 31 | 26 | 96.2% | 5 |
| April 2026 | 6 | 6 | 83.3% | 0 |
| May 2026 | 11 | 11 | 81.8% | 0 |
| June 2026 | 30 | 30 | 100.0% | 0 |
| July 2026 | 31 | 31 | 93.6% | 0 |