YX4545
YX4545 (Republic Airways) is a multi-stop service on 25 routes, busiest Charleston to Washington. Of 756 departures recorded from October 2024 to July 2026, 83.6% left on time, according to the US BTS.
- On-time departures83.6%of 756 flights
- Average delay7.9 min
- July 202662▲ 19.2%vs July 2025
- Cancelled3.4%
- Legs flown under this number25
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 | 24 | 35 | ▲ 45.8% |
| February | 18 | 14 | ▼ 22.2% |
| March | 54 | 20 | ▼ 63.0% |
| April | 33 | 26 | ▼ 21.2% |
| May | 31 | 35 | ▲ 12.9% |
| June | 48 | 60 | ▲ 25.0% |
| July | 52 | 62 | ▲ 19.2% |
| August | 56 | – | – |
| September | 60 | – | – |
| October | 36 | – | in progress |
| November | 17 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 260 | 252 | ▼ 3.1% |
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 | 83.3% | 81.8% | ▼ 1.8% |
| February | 83.3% | 78.6% | ▼ 5.7% |
| March | 88.7% | 85.0% | ▼ 4.1% |
| April | 90.6% | 92.3% | ▲ 1.9% |
| May | 76.7% | 97.1% | ▲ 26.7% |
| June | 77.3% | 79.3% | ▲ 2.6% |
| July | 72.7% | 80.4% | ▲ 10.5% |
| August | 89.1% | – | – |
| September | 90.0% | – | – |
| October | 97.2% | – | in progress |
| November | 88.2% | – | – |
| December | 48.4% | – | – |
| Year-to-date average (Jan–Jul) | 81.8% | 84.9% | ▲ 3.8% |
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 | 0 | 2 | – |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 1 | 0 | ▼ 100.0% |
| June | 4 | 2 | ▼ 50.0% |
| July | 8 | 6 | ▼ 25.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 15 | 10 | ▼ 33.3% |
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 96.6% 730
- Cancelled 3.4% 26
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
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 9 | 9 | 100.0% | 0 |
| November 2024 | 10 | 10 | 100.0% | 0 |
| December 2024 | 25 | 25 | 76.0% | 0 |
| January 2025 | 24 | 24 | 83.3% | 0 |
| February 2025 | 18 | 18 | 83.3% | 0 |
| March 2025 | 54 | 53 | 88.7% | 1 |
| April 2025 | 33 | 32 | 90.6% | 1 |
| May 2025 | 31 | 30 | 76.7% | 1 |
| June 2025 | 48 | 44 | 77.3% | 4 |
| July 2025 | 52 | 44 | 72.7% | 8 |
| August 2025 | 56 | 55 | 89.1% | 1 |
| September 2025 | 60 | 60 | 90.0% | 0 |
| October 2025 | 36 | 36 | 97.2% | 0 |
| November 2025 | 17 | 17 | 88.2% | 0 |
| December 2025 | 31 | 31 | 48.4% | 0 |
| January 2026 | 35 | 33 | 81.8% | 2 |
| February 2026 | 14 | 14 | 78.6% | 0 |
| March 2026 | 20 | 20 | 85.0% | 0 |
| April 2026 | 26 | 26 | 92.3% | 0 |
| May 2026 | 35 | 35 | 97.1% | 0 |
| June 2026 | 60 | 58 | 79.3% | 2 |
| July 2026 | 62 | 56 | 80.4% | 6 |