YX4599
YX4599 (Republic Airways) is a multi-stop service on 23 routes, busiest New York to Atlanta. Of 714 departures recorded from October 2024 to July 2026, 81.1% left on time, according to the US BTS.
- On-time departures81.1%of 714 flights
- Average delay8.7 min
- July 202627▼ 56.5%vs July 2025
- Cancelled3.8%
- Legs flown under this number23
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 | 34 | 10 | ▼ 70.6% |
| February | 30 | 15 | ▼ 50.0% |
| March | 56 | 27 | ▼ 51.8% |
| April | 33 | 53 | ▲ 60.6% |
| May | 27 | 46 | ▲ 70.4% |
| June | 28 | 26 | ▼ 7.1% |
| July | 62 | 27 | ▼ 56.5% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 36 | – | in progress |
| November | 27 | – | – |
| December | 22 | – | – |
| Year to date (Jan–Jul) | 270 | 204 | ▼ 24.4% |
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 | 80.7% | 90.0% | ▲ 11.6% |
| February | 75.9% | 86.7% | ▲ 14.2% |
| March | 85.7% | 60.0% | ▼ 30.0% |
| April | 68.8% | 76.5% | ▲ 11.2% |
| May | 56.0% | 83.7% | ▲ 49.5% |
| June | 78.6% | 83.3% | ▲ 6.1% |
| July | 95.1% | 76.2% | ▼ 19.9% |
| August | 88.7% | – | – |
| September | 93.2% | – | – |
| October | 73.5% | – | in progress |
| November | 81.5% | – | – |
| December | 71.4% | – | – |
| Year-to-date average (Jan–Jul) | 77.2% | 79.5% | ▲ 2.9% |
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 | 3 | 0 | ▼ 100.0% |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 2 | – |
| April | 1 | 2 | ▲ 100.0% |
| May | 2 | 3 | ▲ 50.0% |
| June | 0 | 2 | – |
| July | 1 | 6 | ▲ 500.0% |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 2 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 8 | 15 | ▲ 87.5% |
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 96.2% 687
- Cancelled 3.8% 27
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
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 2 | 2 | 100.0% | 0 |
| November 2024 | 13 | 13 | 61.5% | 0 |
| December 2024 | 18 | 18 | 88.9% | 0 |
| January 2025 | 34 | 31 | 80.7% | 3 |
| February 2025 | 30 | 29 | 75.9% | 1 |
| March 2025 | 56 | 56 | 85.7% | 0 |
| April 2025 | 33 | 32 | 68.8% | 1 |
| May 2025 | 27 | 25 | 56.0% | 2 |
| June 2025 | 28 | 28 | 78.6% | 0 |
| July 2025 | 62 | 61 | 95.1% | 1 |
| August 2025 | 62 | 62 | 88.7% | 0 |
| September 2025 | 60 | 59 | 93.2% | 1 |
| October 2025 | 36 | 34 | 73.5% | 2 |
| November 2025 | 27 | 27 | 81.5% | 0 |
| December 2025 | 22 | 21 | 71.4% | 1 |
| January 2026 | 10 | 10 | 90.0% | 0 |
| February 2026 | 15 | 15 | 86.7% | 0 |
| March 2026 | 27 | 25 | 60.0% | 2 |
| April 2026 | 53 | 51 | 76.5% | 2 |
| May 2026 | 46 | 43 | 83.7% | 3 |
| June 2026 | 26 | 24 | 83.3% | 2 |
| July 2026 | 27 | 21 | 76.2% | 6 |