YX5637
YX5637 (Republic Airways) is a multi-stop service on 13 routes, busiest New York to Louisville. Of 890 departures recorded from October 2024 to July 2026, 86.2% left on time, according to the US BTS.
- On-time departures86.2%of 890 flights
- Average delay4.8 min
- July 202654▲ 74.2%vs July 2025
- Cancelled3.9%
- Legs flown under this number13
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 | 50 | 31 | ▼ 38.0% |
| February | 48 | 28 | ▼ 41.7% |
| March | 35 | 52 | ▲ 48.6% |
| April | 30 | 54 | ▲ 80.0% |
| May | 51 | 52 | ▲ 2.0% |
| June | 36 | 52 | ▲ 44.4% |
| July | 31 | 54 | ▲ 74.2% |
| August | 30 | – | – |
| September | 47 | – | – |
| October | 58 | – | in progress |
| November | 52 | – | – |
| December | 46 | – | – |
| Year to date (Jan–Jul) | 281 | 323 | ▲ 14.9% |
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 | 85.7% | 74.1% | ▼ 13.6% |
| February | 87.0% | 84.6% | ▼ 2.7% |
| March | 94.3% | 63.6% | ▼ 32.5% |
| April | 93.3% | 92.5% | ▼ 0.9% |
| May | 78.0% | 78.4% | ▲ 0.6% |
| June | 94.4% | 92.0% | ▼ 2.6% |
| July | 93.1% | 85.7% | ▼ 7.9% |
| August | 93.3% | – | – |
| September | 93.6% | – | – |
| October | 87.5% | – | in progress |
| November | 84.0% | – | – |
| December | 79.6% | – | – |
| Year-to-date average (Jan–Jul) | 89.4% | 81.6% | ▼ 8.8% |
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 | 2 | 2 | 0.0% |
| March | 0 | 8 | – |
| April | 0 | 1 | – |
| May | 1 | 1 | 0.0% |
| June | 0 | 2 | – |
| July | 2 | 5 | ▲ 150.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 2 | – | in progress |
| November | 2 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 6 | 23 | ▲ 283.3% |
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 96.1% 855
- Cancelled 3.9% 35
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LGA SDF LaGuardia Airport – Louisville Muhammad Ali International Airport | 1,058 | -1.2 min | 92.3% | 341 |
| SDF LGA Louisville Muhammad Ali International Airport – LaGuardia Airport | 1,058 | 6.5 min | 81.8% | 232 |
| MKE LGA General Mitchell International Airport – LaGuardia Airport | 1,185 | 2.8 min | 92.4% | 94 |
| LGA CLT LaGuardia Airport – Charlotte Douglas International Airport | 875 | 12.3 min | 82.1% | 62 |
| LGA SAV LaGuardia Airport – Savannah Hilton Head International Airport | 1,163 | 7.1 min | 75.8% | 36 |
| SAV LGA Savannah Hilton Head International Airport – LaGuardia Airport | 1,163 | 23.1 min | 60.0% | 31 |
| JFK BOS John F. Kennedy International Airport – Boston Logan International Airport | 300 | 22.7 min | 73.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 100.0% | 0 |
| November 2024 | 25 | 25 | 100.0% | 0 |
| December 2024 | 11 | 11 | 63.6% | 0 |
| January 2025 | 50 | 49 | 85.7% | 1 |
| February 2025 | 48 | 46 | 87.0% | 2 |
| March 2025 | 35 | 35 | 94.3% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 51 | 50 | 78.0% | 1 |
| June 2025 | 36 | 36 | 94.4% | 0 |
| July 2025 | 31 | 29 | 93.1% | 2 |
| August 2025 | 30 | 30 | 93.3% | 0 |
| September 2025 | 47 | 47 | 93.6% | 0 |
| October 2025 | 58 | 56 | 87.5% | 2 |
| November 2025 | 52 | 50 | 84.0% | 2 |
| December 2025 | 46 | 44 | 79.6% | 2 |
| January 2026 | 31 | 27 | 74.1% | 4 |
| February 2026 | 28 | 26 | 84.6% | 2 |
| March 2026 | 52 | 44 | 63.6% | 8 |
| April 2026 | 54 | 53 | 92.5% | 1 |
| May 2026 | 52 | 51 | 78.4% | 1 |
| June 2026 | 52 | 50 | 92.0% | 2 |
| July 2026 | 54 | 49 | 85.7% | 5 |