YX4508
YX4508 (Republic Airways) is a multi-stop service on 16 routes, busiest New York to Washington. Of 603 departures recorded from October 2024 to July 2026, 82.6% left on time, according to the US BTS.
- On-time departures82.6%of 603 flights
- Average delay11.2 min
- July 202646▲ 187.5%vs July 2025
- Cancelled3.0%
- Legs flown under this number16
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 | 27 | 31 | ▲ 14.8% |
| February | 28 | 28 | 0.0% |
| March | 33 | 10 | ▼ 69.7% |
| April | 33 | 49 | ▲ 48.5% |
| May | 31 | 58 | ▲ 87.1% |
| June | 12 | 44 | ▲ 266.7% |
| July | 16 | 46 | ▲ 187.5% |
| August | 20 | – | – |
| September | – | – | – |
| October | 4 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 180 | 266 | ▲ 47.8% |
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 | 95.8% | 80.0% | ▼ 16.5% |
| February | 73.1% | 80.8% | ▲ 10.5% |
| March | 84.9% | 80.0% | ▼ 5.7% |
| April | 87.9% | 81.6% | ▼ 7.1% |
| May | 64.5% | 80.7% | ▲ 25.1% |
| June | 58.3% | 88.6% | ▲ 52.0% |
| July | 57.1% | 93.2% | ▲ 63.1% |
| August | 85.0% | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 80.8% | – | – |
| December | 80.0% | – | – |
| Year-to-date average (Jan–Jul) | 74.5% | 83.6% | ▲ 12.1% |
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 | 3 | 1 | ▼ 66.7% |
| February | 2 | 2 | 0.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 2 | 2 | 0.0% |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 7 | 6 | ▼ 14.3% |
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 97.0% 585
- Cancelled 3.0% 18
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| JFK DCA John F. Kennedy International Airport – Ronald Reagan Washington National Airport | 342 | 11.6 min | 81.8% | 320 |
| STL LGA St. Louis Lambert International Airport – LaGuardia Airport | 1,426 | 6.2 min | 86.3% | 52 |
| LGA STL LaGuardia Airport – St. Louis Lambert International Airport | 1,426 | -3.3 min | 96.1% | 52 |
| RIC LGA Richmond International Airport – LaGuardia Airport | 470 | 32.5 min | 83.7% | 44 |
| LGA RIC LaGuardia Airport – Richmond International Airport | 470 | 13.7 min | 77.3% | 44 |
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 | 23 | 22 | 81.8% | 1 |
| January 2025 | 27 | 24 | 95.8% | 3 |
| February 2025 | 28 | 26 | 73.1% | 2 |
| March 2025 | 33 | 33 | 84.9% | 0 |
| April 2025 | 33 | 33 | 87.9% | 0 |
| May 2025 | 31 | 31 | 64.5% | 0 |
| June 2025 | 12 | 12 | 58.3% | 0 |
| July 2025 | 16 | 14 | 57.1% | 2 |
| August 2025 | 20 | 20 | 85.0% | 0 |
| October 2025 | 4 | 4 | 100.0% | 0 |
| November 2025 | 29 | 26 | 80.8% | 3 |
| December 2025 | 31 | 30 | 80.0% | 1 |
| January 2026 | 31 | 30 | 80.0% | 1 |
| February 2026 | 28 | 26 | 80.8% | 2 |
| March 2026 | 10 | 10 | 80.0% | 0 |
| April 2026 | 49 | 49 | 81.6% | 0 |
| May 2026 | 58 | 57 | 80.7% | 1 |
| June 2026 | 44 | 44 | 88.6% | 0 |
| July 2026 | 46 | 44 | 93.2% | 2 |