YX3579
YX3579 (Republic Airways) is a multi-stop service on 21 routes, busiest Pittsburgh to Dulles. Of 628 departures recorded from October 2024 to July 2026, 85.6% left on time, according to the US BTS.
- On-time departures85.6%of 628 flights
- Average delay8.6 min
- July 202630▼ 3.2%vs July 2025
- Cancelled1.8%
- Legs flown under this number21
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 | 25 | 28 | ▲ 12.0% |
| March | 17 | 31 | ▲ 82.4% |
| April | 30 | 30 | 0.0% |
| May | 29 | 31 | ▲ 6.9% |
| June | 22 | 30 | ▲ 36.4% |
| July | 31 | 30 | ▼ 3.2% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 185 | 211 | ▲ 14.1% |
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 | 80.0% | 93.3% | ▲ 16.7% |
| February | 88.0% | 85.7% | ▼ 2.6% |
| March | 88.2% | 80.7% | ▼ 8.6% |
| April | 96.7% | 93.3% | ▼ 3.5% |
| May | 96.6% | 87.1% | ▼ 9.8% |
| June | 72.7% | 73.3% | ▲ 0.8% |
| July | 75.9% | 84.6% | ▲ 11.5% |
| August | 83.9% | – | – |
| September | 96.7% | – | – |
| October | 77.4% | – | in progress |
| November | 82.1% | – | – |
| December | 78.6% | – | – |
| Year-to-date average (Jan–Jul) | 85.4% | 85.4% | 0.0% |
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 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 4 | ▲ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 3 | 5 | ▲ 66.7% |
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 98.2% 617
- Cancelled 1.8% 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 IAD Pittsburgh International Airport – Washington Dulles International Airport | 293 | 4.6 min | 87.3% | 373 |
| IAD PIT Washington Dulles International Airport – Pittsburgh International Airport | 293 | 16.5 min | 79.1% | 71 |
| ILM EWR Wilmington International Airport – Newark Liberty International Airport | 786 | -2.7 min | 93.6% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 31 | 31 | 83.9% | 0 |
| January 2025 | 31 | 30 | 80.0% | 1 |
| February 2025 | 25 | 25 | 88.0% | 0 |
| March 2025 | 17 | 17 | 88.2% | 0 |
| April 2025 | 30 | 30 | 96.7% | 0 |
| May 2025 | 29 | 29 | 96.6% | 0 |
| June 2025 | 22 | 22 | 72.7% | 0 |
| July 2025 | 31 | 29 | 75.9% | 2 |
| August 2025 | 31 | 31 | 83.9% | 0 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 31 | 31 | 77.4% | 0 |
| November 2025 | 30 | 28 | 82.1% | 2 |
| December 2025 | 29 | 28 | 78.6% | 1 |
| January 2026 | 31 | 30 | 93.3% | 1 |
| February 2026 | 28 | 28 | 85.7% | 0 |
| March 2026 | 31 | 31 | 80.7% | 0 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 31 | 31 | 87.1% | 0 |
| June 2026 | 30 | 30 | 73.3% | 0 |
| July 2026 | 30 | 26 | 84.6% | 4 |