YX4659
YX4659 (Republic Airways) is a multi-stop service on 14 routes, busiest New York to Boston. Of 596 departures recorded from October 2024 to July 2026, 82.7% left on time, according to the US BTS.
- On-time departures82.7%of 596 flights
- Average delay14.0 min
- July 202629▼ 6.5%vs July 2025
- Cancelled6.9%
- Legs flown under this number14
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 | 37 | 31 | ▼ 16.2% |
| February | 28 | 12 | ▼ 57.1% |
| March | 31 | 42 | ▲ 35.5% |
| April | 30 | 34 | ▲ 13.3% |
| May | 31 | 31 | 0.0% |
| June | 30 | 4 | ▼ 86.7% |
| July | 31 | 29 | ▼ 6.5% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 5 | – | – |
| December | 25 | – | – |
| Year to date (Jan–Jul) | 218 | 183 | ▼ 16.1% |
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 | 94.1% | 86.7% | ▼ 7.9% |
| February | 76.9% | 91.7% | ▲ 19.2% |
| March | 85.7% | 69.2% | ▼ 19.2% |
| April | 90.0% | 75.0% | ▼ 16.7% |
| May | 70.0% | 96.6% | ▲ 37.9% |
| June | 58.3% | 100.0% | ▲ 71.4% |
| July | 68.4% | 92.9% | ▲ 35.7% |
| August | 66.7% | – | – |
| September | 82.1% | – | – |
| October | 80.0% | – | in progress |
| November | 100.0% | – | – |
| December | 84.0% | – | – |
| Year-to-date average (Jan–Jul) | 77.6% | 87.4% | ▲ 12.6% |
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 | 1 | ▼ 66.7% |
| February | 2 | 0 | ▼ 100.0% |
| March | 3 | 3 | 0.0% |
| April | 0 | 2 | – |
| May | 1 | 2 | ▲ 100.0% |
| June | 6 | 0 | ▼ 100.0% |
| July | 12 | 1 | ▼ 91.7% |
| August | 1 | – | – |
| September | 2 | – | – |
| October | 1 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 27 | 9 | ▼ 66.7% |
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 93.1% 555
- Cancelled 6.9% 41
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 |
|---|---|---|---|---|
| JFK BOS John F. Kennedy International Airport – Boston Logan International Airport | 300 | 11.8 min | 81.4% | 396 |
| BWI ORD Baltimore/Washington International Thurgood Marshall Airport – Chicago O'Hare International Airport | 998 | 7.7 min | 95.4% | 44 |
| PIT PHL Pittsburgh International Airport – Philadelphia International Airport | 430 | -0.5 min | 91.7% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 29 | 29 | 93.1% | 0 |
| December 2024 | 24 | 24 | 100.0% | 0 |
| January 2025 | 37 | 34 | 94.1% | 3 |
| February 2025 | 28 | 26 | 76.9% | 2 |
| March 2025 | 31 | 28 | 85.7% | 3 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 31 | 30 | 70.0% | 1 |
| June 2025 | 30 | 24 | 58.3% | 6 |
| July 2025 | 31 | 19 | 68.4% | 12 |
| August 2025 | 31 | 30 | 66.7% | 1 |
| September 2025 | 30 | 28 | 82.1% | 2 |
| October 2025 | 31 | 30 | 80.0% | 1 |
| November 2025 | 5 | 4 | 100.0% | 1 |
| December 2025 | 25 | 25 | 84.0% | 0 |
| January 2026 | 31 | 30 | 86.7% | 1 |
| February 2026 | 12 | 12 | 91.7% | 0 |
| March 2026 | 42 | 39 | 69.2% | 3 |
| April 2026 | 34 | 32 | 75.0% | 2 |
| May 2026 | 31 | 29 | 96.6% | 2 |
| June 2026 | 4 | 4 | 100.0% | 0 |
| July 2026 | 29 | 28 | 92.9% | 1 |