YX5643
YX5643 (Republic Airways) is a multi-stop service on 3 routes, busiest New York to Louisville. Of 861 departures recorded from October 2024 to July 2026, 89.5% left on time, according to the US BTS.
- On-time departures89.5%of 861 flights
- Average delay0.9 min
- July 202662▲ 10.7%vs July 2025
- Cancelled2.3%
- Legs flown under this number3
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 | 28 | 10 | ▼ 64.3% |
| February | 24 | 6 | ▼ 75.0% |
| March | 27 | 46 | ▲ 70.4% |
| April | 28 | 58 | ▲ 107.1% |
| May | 49 | 60 | ▲ 22.4% |
| June | 56 | 60 | ▲ 7.1% |
| July | 56 | 62 | ▲ 10.7% |
| August | 56 | – | – |
| September | 53 | – | – |
| October | 17 | – | in progress |
| November | 38 | – | – |
| December | 45 | – | – |
| Year to date (Jan–Jul) | 268 | 302 | ▲ 12.7% |
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 | 92.3% | 88.9% | ▼ 3.7% |
| February | 87.5% | 100.0% | ▲ 14.3% |
| March | 100.0% | 81.6% | ▼ 18.4% |
| April | 92.9% | 82.8% | ▼ 10.9% |
| May | 77.6% | 91.7% | ▲ 18.2% |
| June | 91.1% | 93.3% | ▲ 2.5% |
| July | 94.6% | 89.3% | ▼ 5.6% |
| August | 91.1% | – | – |
| September | 90.6% | – | – |
| October | 94.1% | – | in progress |
| November | 88.9% | – | – |
| December | 75.6% | – | – |
| Year-to-date average (Jan–Jul) | 90.8% | 89.6% | ▼ 1.3% |
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 | 2 | 1 | ▼ 50.0% |
| February | 0 | 0 | – |
| March | 0 | 8 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 6 | ▲ 500.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 15 | ▲ 400.0% |
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 97.7% 841
- Cancelled 2.3% 20
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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LGA SDF LaGuardia Airport – Louisville Muhammad Ali International Airport | 1,058 | -0.1 min | 90.4% | 540 |
| SDF LGA Louisville Muhammad Ali International Airport – LaGuardia Airport | 1,058 | 3.0 min | 87.8% | 315 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 30 | 93.3% | 0 |
| December 2024 | 32 | 32 | 96.9% | 0 |
| January 2025 | 28 | 26 | 92.3% | 2 |
| February 2025 | 24 | 24 | 87.5% | 0 |
| March 2025 | 27 | 27 | 100.0% | 0 |
| April 2025 | 28 | 28 | 92.9% | 0 |
| May 2025 | 49 | 49 | 77.6% | 0 |
| June 2025 | 56 | 56 | 91.1% | 0 |
| July 2025 | 56 | 55 | 94.6% | 1 |
| August 2025 | 56 | 56 | 91.1% | 0 |
| September 2025 | 53 | 53 | 90.6% | 0 |
| October 2025 | 17 | 17 | 94.1% | 0 |
| November 2025 | 38 | 36 | 88.9% | 2 |
| December 2025 | 45 | 45 | 75.6% | 0 |
| January 2026 | 10 | 9 | 88.9% | 1 |
| February 2026 | 6 | 6 | 100.0% | 0 |
| March 2026 | 46 | 38 | 81.6% | 8 |
| April 2026 | 58 | 58 | 82.8% | 0 |
| May 2026 | 60 | 60 | 91.7% | 0 |
| June 2026 | 60 | 60 | 93.3% | 0 |
| July 2026 | 62 | 56 | 89.3% | 6 |