YX4663
YX4663 (Republic Airways) is a multi-stop service on 27 routes, busiest Burlington to Washington. Of 582 departures recorded from November 2024 to July 2026, 83.5% left on time, according to the US BTS.
- On-time departures83.5%of 582 flights
- Average delay11.7 min
- July 202630▲ 15.4%vs July 2025
- Cancelled3.1%
- Legs flown under this number27
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 40 | ▲ 3,900.0% |
| February | – | 28 | – |
| March | – | 54 | – |
| April | 54 | 33 | ▼ 38.9% |
| May | 62 | 28 | ▼ 54.8% |
| June | 18 | 3 | ▼ 83.3% |
| July | 26 | 30 | ▲ 15.4% |
| August | 13 | – | – |
| September | 56 | – | – |
| October | 62 | – | in progress |
| November | 28 | – | – |
| December | 39 | – | – |
according to the US BTS · November 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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 0.0% | 77.1% | – |
| February | – | 76.9% | – |
| March | – | 87.0% | – |
| April | 100.0% | 75.8% | ▼ 24.2% |
| May | 88.7% | 81.5% | ▼ 8.2% |
| June | 88.2% | 100.0% | ▲ 13.3% |
| July | 69.6% | 75.0% | ▲ 7.8% |
| August | 69.2% | – | – |
| September | 92.9% | – | – |
| October | 90.2% | – | in progress |
| November | 64.0% | – | – |
| December | 71.8% | – | – |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · November 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 5 | – |
| February | – | 2 | – |
| March | – | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 3 | 2 | ▼ 33.3% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 3 | – | – |
| December | 0 | – | – |
according to the US BTS · November 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 96.9% 564
- Cancelled 3.1% 18
Share of all recorded flights in the period, all legs. · Nov 9, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
9Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 3 | 3 | 66.7% | 0 |
| December 2024 | 4 | 4 | 100.0% | 0 |
| January 2025 | 1 | 1 | 0.0% | 0 |
| April 2025 | 54 | 54 | 100.0% | 0 |
| May 2025 | 62 | 62 | 88.7% | 0 |
| June 2025 | 18 | 17 | 88.2% | 1 |
| July 2025 | 26 | 23 | 69.6% | 3 |
| August 2025 | 13 | 13 | 69.2% | 0 |
| September 2025 | 56 | 56 | 92.9% | 0 |
| October 2025 | 62 | 61 | 90.2% | 1 |
| November 2025 | 28 | 25 | 64.0% | 3 |
| December 2025 | 39 | 39 | 71.8% | 0 |
| January 2026 | 40 | 35 | 77.1% | 5 |
| February 2026 | 28 | 26 | 76.9% | 2 |
| March 2026 | 54 | 54 | 87.0% | 0 |
| April 2026 | 33 | 33 | 75.8% | 0 |
| May 2026 | 28 | 27 | 81.5% | 1 |
| June 2026 | 3 | 3 | 100.0% | 0 |
| July 2026 | 30 | 28 | 75.0% | 2 |