YX4570
YX4570 (Republic Airways) is a multi-stop service on 16 routes, busiest Key West to Washington. Of 661 departures recorded from October 2024 to July 2026, 84.8% left on time, according to the US BTS.
- On-time departures84.8%of 661 flights
- Average delay5.3 min
- July 202662▲ 129.6%vs July 2025
- Cancelled3.8%
- Legs flown under this number16
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 | 6 | 31 | ▲ 416.7% |
| February | 4 | 28 | ▲ 600.0% |
| March | 27 | 31 | ▲ 14.8% |
| April | 30 | 27 | ▼ 10.0% |
| May | 56 | 36 | ▼ 35.7% |
| June | 34 | 60 | ▲ 76.5% |
| July | 27 | 62 | ▲ 129.6% |
| August | 30 | – | – |
| September | 30 | – | – |
| October | 8 | – | in progress |
| November | 29 | – | – |
| December | 28 | – | – |
| Year to date (Jan–Jul) | 184 | 275 | ▲ 49.5% |
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 | 80.0% | 92.6% | ▲ 15.7% |
| February | 75.0% | 76.9% | ▲ 2.6% |
| March | 88.5% | 89.7% | ▲ 1.4% |
| April | 75.9% | 88.9% | ▲ 17.2% |
| May | 98.2% | 88.9% | ▼ 9.5% |
| June | 76.5% | 83.3% | ▲ 9.0% |
| July | 74.1% | 94.6% | ▲ 27.8% |
| August | 86.7% | – | – |
| September | 76.7% | – | – |
| October | 75.0% | – | in progress |
| November | 62.5% | – | – |
| December | 61.5% | – | – |
| Year-to-date average (Jan–Jul) | 81.2% | 87.8% | ▲ 8.2% |
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 | 1 | 4 | ▲ 300.0% |
| February | 0 | 2 | – |
| March | 1 | 2 | ▲ 100.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 6 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 5 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 3 | 14 | ▲ 366.7% |
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% 636
- Cancelled 3.8% 25
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
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 27 | 26 | 84.6% | 1 |
| January 2025 | 6 | 5 | 80.0% | 1 |
| February 2025 | 4 | 4 | 75.0% | 0 |
| March 2025 | 27 | 26 | 88.5% | 1 |
| April 2025 | 30 | 29 | 75.9% | 1 |
| May 2025 | 56 | 56 | 98.2% | 0 |
| June 2025 | 34 | 34 | 76.5% | 0 |
| July 2025 | 27 | 27 | 74.1% | 0 |
| August 2025 | 30 | 30 | 86.7% | 0 |
| September 2025 | 30 | 30 | 76.7% | 0 |
| October 2025 | 8 | 8 | 75.0% | 0 |
| November 2025 | 29 | 24 | 62.5% | 5 |
| December 2025 | 28 | 26 | 61.5% | 2 |
| January 2026 | 31 | 27 | 92.6% | 4 |
| February 2026 | 28 | 26 | 76.9% | 2 |
| March 2026 | 31 | 29 | 89.7% | 2 |
| April 2026 | 27 | 27 | 88.9% | 0 |
| May 2026 | 36 | 36 | 88.9% | 0 |
| June 2026 | 60 | 60 | 83.3% | 0 |
| July 2026 | 62 | 56 | 94.6% | 6 |