YX4625
YX4625 (Republic Airways) is a multi-stop service on 17 routes, busiest Chicago to Pittsburgh. Of 493 departures recorded from October 2024 to July 2026, 78.0% left on time, according to the US BTS.
- On-time departures78.0%of 493 flights
- Average delay13.7 min
- July 202631▲ 933.3%vs July 2025
- Cancelled3.0%
- Legs flown under this number17
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 | 9 | 31 | ▲ 244.4% |
| February | 18 | 23 | ▲ 27.8% |
| March | 5 | 53 | ▲ 960.0% |
| April | 27 | 36 | ▲ 33.3% |
| May | 4 | 30 | ▲ 650.0% |
| June | 24 | 30 | ▲ 25.0% |
| July | 3 | 31 | ▲ 933.3% |
| August | – | – | – |
| September | 24 | – | – |
| October | 30 | – | in progress |
| November | 21 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 90 | 234 | ▲ 160.0% |
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 | 66.7% | 67.7% | ▲ 1.6% |
| February | 77.8% | 78.3% | ▲ 0.6% |
| March | 80.0% | 73.5% | ▼ 8.2% |
| April | 77.8% | 82.4% | ▲ 5.9% |
| May | 50.0% | 90.0% | ▲ 80.0% |
| June | 57.9% | 93.3% | ▲ 61.2% |
| July | 0.0% | 96.8% | – |
| August | – | – | – |
| September | 63.6% | – | – |
| October | 69.0% | – | in progress |
| November | 85.0% | – | – |
| December | 75.9% | – | – |
| Year-to-date average (Jan–Jul) | 58.6% | 83.1% | ▲ 41.9% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 4 | – |
| April | 0 | 2 | – |
| May | 0 | 0 | – |
| June | 5 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | – | – | – |
| September | 2 | – | – |
| October | 1 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 5 | 6 | ▲ 20.0% |
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 97.0% 478
- Cancelled 3.0% 15
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
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD PIT Chicago O'Hare International Airport – Pittsburgh International Airport | 662 | 13.3 min | 80.6% | 98 |
| PIT ORD Pittsburgh International Airport – Chicago O'Hare International Airport | 662 | 1.3 min | 94.4% | 71 |
| BOS PHL Boston Logan International Airport – Philadelphia International Airport | 450 | 27.7 min | 60.0% | 45 |
| IND ORD Indianapolis International Airport – Chicago O'Hare International Airport | 286 | 12.2 min | 73.0% | 37 |
| PHL BTV Philadelphia International Airport – Patrick Leahy Burlington International Airport | 540 | 23.9 min | 78.1% | 33 |
| DCA ATL Ronald Reagan Washington National Airport – Hartsfield Jackson Atlanta International Airport | 880 | 20.3 min | 74.2% | 31 |
| ORD ALB Chicago O'Hare International Airport – Albany International Airport | 1,161 | 7.4 min | 85.2% | 30 |
| ALB ORD Albany International Airport – Chicago O'Hare International Airport | 1,161 | 28.2 min | 63.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 3 | 3 | 100.0% | 0 |
| November 2024 | 43 | 43 | 79.1% | 0 |
| December 2024 | 19 | 19 | 89.5% | 0 |
| January 2025 | 9 | 9 | 66.7% | 0 |
| February 2025 | 18 | 18 | 77.8% | 0 |
| March 2025 | 5 | 5 | 80.0% | 0 |
| April 2025 | 27 | 27 | 77.8% | 0 |
| May 2025 | 4 | 4 | 50.0% | 0 |
| June 2025 | 24 | 19 | 57.9% | 5 |
| July 2025 | 3 | 3 | 0.0% | 0 |
| September 2025 | 24 | 22 | 63.6% | 2 |
| October 2025 | 30 | 29 | 69.0% | 1 |
| November 2025 | 21 | 20 | 85.0% | 1 |
| December 2025 | 29 | 29 | 75.9% | 0 |
| January 2026 | 31 | 31 | 67.7% | 0 |
| February 2026 | 23 | 23 | 78.3% | 0 |
| March 2026 | 53 | 49 | 73.5% | 4 |
| April 2026 | 36 | 34 | 82.4% | 2 |
| May 2026 | 30 | 30 | 90.0% | 0 |
| June 2026 | 30 | 30 | 93.3% | 0 |
| July 2026 | 31 | 31 | 96.8% | 0 |