YX4375
YX4375 (Republic Airways) is a multi-stop service on 31 routes, busiest Boston to New York. Of 809 departures recorded from October 2024 to July 2026, 75.6% left on time, according to the US BTS.
- On-time departures75.6%of 809 flights
- Average delay14.1 min
- July 202662▲ 77.1%vs July 2025
- Cancelled2.2%
- Legs flown under this number31
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 | 23 | 36 | ▲ 56.5% |
| February | 24 | 45 | ▲ 87.5% |
| March | 6 | 62 | ▲ 933.3% |
| April | 49 | 52 | ▲ 6.1% |
| May | 33 | 56 | ▲ 69.7% |
| June | 34 | 60 | ▲ 76.5% |
| July | 35 | 62 | ▲ 77.1% |
| August | 52 | – | – |
| September | 30 | – | – |
| October | 28 | – | in progress |
| November | 29 | – | – |
| December | 28 | – | – |
| Year to date (Jan–Jul) | 204 | 373 | ▲ 82.8% |
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 | 100.0% | 74.3% | ▼ 25.7% |
| February | 91.7% | 71.4% | ▼ 22.1% |
| March | 66.7% | 70.5% | ▲ 5.7% |
| April | 73.5% | 69.2% | ▼ 5.8% |
| May | 72.7% | 68.5% | ▼ 5.8% |
| June | 64.7% | 78.3% | ▲ 21.0% |
| July | 79.4% | 72.7% | ▼ 8.4% |
| August | 67.3% | – | – |
| September | 82.8% | – | – |
| October | 76.9% | – | in progress |
| November | 86.2% | – | – |
| December | 75.0% | – | – |
| Year-to-date average (Jan–Jul) | 78.4% | 72.1% | ▼ 8.0% |
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 | 0 | 1 | – |
| February | 0 | 3 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 2 | – |
| June | 0 | 0 | – |
| July | 1 | 7 | ▲ 600.0% |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 2 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 14 | ▲ 1,300.0% |
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 97.8% 791
- Cancelled 2.2% 18
Share of all recorded flights in the period, all legs. · Oct 31, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
12Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 1 | 1 | 100.0% | 0 |
| November 2024 | 43 | 43 | 79.1% | 0 |
| December 2024 | 21 | 21 | 100.0% | 0 |
| January 2025 | 23 | 23 | 100.0% | 0 |
| February 2025 | 24 | 24 | 91.7% | 0 |
| March 2025 | 6 | 6 | 66.7% | 0 |
| April 2025 | 49 | 49 | 73.5% | 0 |
| May 2025 | 33 | 33 | 72.7% | 0 |
| June 2025 | 34 | 34 | 64.7% | 0 |
| July 2025 | 35 | 34 | 79.4% | 1 |
| August 2025 | 52 | 52 | 67.3% | 0 |
| September 2025 | 30 | 29 | 82.8% | 1 |
| October 2025 | 28 | 26 | 76.9% | 2 |
| November 2025 | 29 | 29 | 86.2% | 0 |
| December 2025 | 28 | 28 | 75.0% | 0 |
| January 2026 | 36 | 35 | 74.3% | 1 |
| February 2026 | 45 | 42 | 71.4% | 3 |
| March 2026 | 62 | 61 | 70.5% | 1 |
| April 2026 | 52 | 52 | 69.2% | 0 |
| May 2026 | 56 | 54 | 68.5% | 2 |
| June 2026 | 60 | 60 | 78.3% | 0 |
| July 2026 | 62 | 55 | 72.7% | 7 |