YX4584
YX4584 (Republic Airways) is a multi-stop service on 22 routes, busiest Richmond to New York. Of 883 departures recorded from October 2024 to July 2026, 84.7% left on time, according to the US BTS.
- On-time departures84.7%of 883 flights
- Average delay7.4 min
- July 202642▼ 16.0%vs July 2025
- Cancelled2.8%
- Legs flown under this number22
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 | 49 | 48 | ▼ 2.0% |
| February | 48 | 54 | ▲ 12.5% |
| March | 52 | 14 | ▼ 73.1% |
| April | 56 | 41 | ▼ 26.8% |
| May | 7 | 34 | ▲ 385.7% |
| June | 40 | – | – |
| July | 50 | 42 | ▼ 16.0% |
| August | 47 | – | – |
| September | 32 | – | – |
| October | 58 | – | in progress |
| November | 52 | – | – |
| December | 35 | – | – |
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 | 89.8% | 92.9% | ▲ 3.4% |
| February | 87.0% | 60.0% | ▼ 31.0% |
| March | 98.1% | 57.1% | ▼ 41.7% |
| April | 92.9% | 92.7% | ▼ 0.2% |
| May | 100.0% | 88.2% | ▼ 11.8% |
| June | 69.2% | – | – |
| July | 81.6% | 74.4% | ▼ 8.9% |
| August | 91.3% | – | – |
| September | 93.8% | – | – |
| October | 79.3% | – | in progress |
| November | 84.8% | – | – |
| December | 67.7% | – | – |
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 | 6 | – |
| February | 2 | 4 | ▲ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | – | – |
| July | 1 | 3 | ▲ 200.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 6 | – | – |
| December | 1 | – | – |
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 97.2% 858
- Cancelled 2.8% 25
Share of all recorded flights in the period, all legs. · Oct 13, 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 |
|---|---|---|---|---|
| RIC LGA Richmond International Airport – LaGuardia Airport | 470 | 12.8 min | 84.6% | 209 |
| LGA RIC LaGuardia Airport – Richmond International Airport | 470 | -2.1 min | 93.1% | 163 |
| RDU DCA Raleigh-Durham International Airport – Ronald Reagan Washington National Airport | 365 | 6.5 min | 87.7% | 68 |
| DCA RDU Ronald Reagan Washington National Airport – Raleigh-Durham International Airport | 365 | 5.5 min | 84.2% | 60 |
| JAX DCA Jacksonville International Airport – Ronald Reagan Washington National Airport | 1,022 | -0.8 min | 89.2% | 37 |
| DCA JAX Ronald Reagan Washington National Airport – Jacksonville International Airport | 1,022 | 0.0 min | 91.9% | 37 |
| IAH DCA George Bush Intercontinental Airport – Ronald Reagan Washington National Airport | 1,942 | 8.2 min | 93.3% | 33 |
| DCA IAH Ronald Reagan Washington National Airport – George Bush Intercontinental Airport | 1,942 | -3.4 min | 96.6% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 34 | 34 | 97.1% | 0 |
| November 2024 | 48 | 48 | 93.8% | 0 |
| December 2024 | 42 | 42 | 81.0% | 0 |
| January 2025 | 49 | 49 | 89.8% | 0 |
| February 2025 | 48 | 46 | 87.0% | 2 |
| March 2025 | 52 | 52 | 98.1% | 0 |
| April 2025 | 56 | 56 | 92.9% | 0 |
| May 2025 | 7 | 7 | 100.0% | 0 |
| June 2025 | 40 | 39 | 69.2% | 1 |
| July 2025 | 50 | 49 | 81.6% | 1 |
| August 2025 | 47 | 46 | 91.3% | 1 |
| September 2025 | 32 | 32 | 93.8% | 0 |
| October 2025 | 58 | 58 | 79.3% | 0 |
| November 2025 | 52 | 46 | 84.8% | 6 |
| December 2025 | 35 | 34 | 67.7% | 1 |
| January 2026 | 48 | 42 | 92.9% | 6 |
| February 2026 | 54 | 50 | 60.0% | 4 |
| March 2026 | 14 | 14 | 57.1% | 0 |
| April 2026 | 41 | 41 | 92.7% | 0 |
| May 2026 | 34 | 34 | 88.2% | 0 |
| July 2026 | 42 | 39 | 74.4% | 3 |