YX4779
YX4779 (Republic Airways) is a multi-stop service on 9 routes, busiest Washington to Houston. Of 250 departures recorded from November 2024 to July 2026, 76.9% left on time, according to the US BTS.
- On-time departures76.9%of 250 flights
- Average delay12.4 min
- July 20269▼ 59.1%vs July 2025
- Cancelled6.4%
- Legs flown under this number9
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 | 3 | 13 | ▲ 333.3% |
| February | 4 | 8 | ▲ 100.0% |
| March | 5 | 8 | ▲ 60.0% |
| April | – | 8 | – |
| May | – | 10 | – |
| June | 18 | 8 | ▼ 55.6% |
| July | 22 | 9 | ▼ 59.1% |
| August | 7 | – | – |
| September | 27 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 28 | – | – |
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 | 100.0% | 69.2% | ▼ 30.8% |
| February | 100.0% | 50.0% | ▼ 50.0% |
| March | 100.0% | 100.0% | 0.0% |
| April | – | 62.5% | – |
| May | – | 80.0% | – |
| June | 80.0% | 85.7% | ▲ 7.1% |
| July | 75.0% | 62.5% | ▼ 16.7% |
| August | 85.7% | – | – |
| September | 74.1% | – | – |
| October | 74.2% | – | in progress |
| November | 80.8% | – | – |
| December | 74.1% | – | – |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | 3 | 1 | ▼ 66.7% |
| July | 6 | 1 | ▼ 83.3% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 1 | – | – |
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 93.6% 234
- Cancelled 6.4% 16
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DCA IAH Ronald Reagan Washington National Airport – George Bush Intercontinental Airport | 1,942 | 14.1 min | 76.7% | 120 |
| LGA SAV LaGuardia Airport – Savannah Hilton Head International Airport | 1,163 | 15.8 min | 76.1% | 49 |
| DCA MSN Ronald Reagan Washington National Airport – Dane County Regional Truax Field | 1,136 | 6.3 min | 79.4% | 43 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 4 | 4 | 100.0% | 0 |
| December 2024 | 8 | 8 | 75.0% | 0 |
| January 2025 | 3 | 3 | 100.0% | 0 |
| February 2025 | 4 | 4 | 100.0% | 0 |
| March 2025 | 5 | 5 | 100.0% | 0 |
| June 2025 | 18 | 15 | 80.0% | 3 |
| July 2025 | 22 | 16 | 75.0% | 6 |
| August 2025 | 7 | 7 | 85.7% | 0 |
| September 2025 | 27 | 27 | 74.1% | 0 |
| October 2025 | 31 | 31 | 74.2% | 0 |
| November 2025 | 29 | 26 | 80.8% | 3 |
| December 2025 | 28 | 27 | 74.1% | 1 |
| January 2026 | 13 | 13 | 69.2% | 0 |
| February 2026 | 8 | 8 | 50.0% | 0 |
| March 2026 | 8 | 7 | 100.0% | 1 |
| April 2026 | 8 | 8 | 62.5% | 0 |
| May 2026 | 10 | 10 | 80.0% | 0 |
| June 2026 | 8 | 7 | 85.7% | 1 |
| July 2026 | 9 | 8 | 62.5% | 1 |