YX5615
YX5615 (Republic Airways) is a multi-stop service on 6 routes, busiest Boston to Louisville. Of 904 departures recorded from October 2024 to July 2026, 86.2% left on time, according to the US BTS.
- On-time departures86.2%of 904 flights
- Average delay5.3 min
- July 202662▲ 100.0%vs July 2025
- Cancelled1.6%
- Legs flown under this number6
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 | 47 | 47 | 0.0% |
| February | 44 | 44 | 0.0% |
| March | 52 | 57 | ▲ 9.6% |
| April | 52 | 58 | ▲ 11.5% |
| May | 34 | 62 | ▲ 82.4% |
| June | 30 | 60 | ▲ 100.0% |
| July | 31 | 62 | ▲ 100.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 28 | – | in progress |
| November | 28 | – | – |
| December | 28 | – | – |
| Year to date (Jan–Jul) | 290 | 390 | ▲ 34.5% |
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 | 89.1% | 78.6% | ▼ 11.8% |
| February | 86.4% | 85.0% | ▼ 1.6% |
| March | 92.3% | 87.7% | ▼ 5.0% |
| April | 86.5% | 93.1% | ▲ 7.6% |
| May | 82.4% | 88.7% | ▲ 7.7% |
| June | 70.0% | 83.3% | ▲ 19.0% |
| July | 90.0% | 81.4% | ▼ 9.6% |
| August | 80.7% | – | – |
| September | 93.3% | – | – |
| October | 89.3% | – | in progress |
| November | 92.9% | – | – |
| December | 64.3% | – | – |
| Year-to-date average (Jan–Jul) | 85.2% | 85.4% | ▲ 0.2% |
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 | 5 | ▲ 400.0% |
| February | 0 | 4 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 3 | ▲ 200.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 12 | ▲ 500.0% |
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 98.5% 890
- Cancelled 1.5% 14
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS SDF Boston Logan International Airport – Louisville Muhammad Ali International Airport | 1,332 | 0.8 min | 89.7% | 412 |
| SDF BOS Louisville Muhammad Ali International Airport – Boston Logan International Airport | 1,332 | 8.2 min | 82.8% | 297 |
| PIT DTW Pittsburgh International Airport – Detroit Metropolitan Wayne County Airport | 323 | 11.1 min | 83.6% | 190 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 31 | 31 | 93.6% | 0 |
| December 2024 | 28 | 28 | 85.7% | 0 |
| January 2025 | 47 | 46 | 89.1% | 1 |
| February 2025 | 44 | 44 | 86.4% | 0 |
| March 2025 | 52 | 52 | 92.3% | 0 |
| April 2025 | 52 | 52 | 86.5% | 0 |
| May 2025 | 34 | 34 | 82.4% | 0 |
| June 2025 | 30 | 30 | 70.0% | 0 |
| July 2025 | 31 | 30 | 90.0% | 1 |
| August 2025 | 31 | 31 | 80.7% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 28 | 28 | 89.3% | 0 |
| November 2025 | 28 | 28 | 92.9% | 0 |
| December 2025 | 28 | 28 | 64.3% | 0 |
| January 2026 | 47 | 42 | 78.6% | 5 |
| February 2026 | 44 | 40 | 85.0% | 4 |
| March 2026 | 57 | 57 | 87.7% | 0 |
| April 2026 | 58 | 58 | 93.1% | 0 |
| May 2026 | 62 | 62 | 88.7% | 0 |
| June 2026 | 60 | 60 | 83.3% | 0 |
| July 2026 | 62 | 59 | 81.4% | 3 |