YX4452
YX4452 (Republic Airways) is a multi-stop service on 31 routes, busiest Boston to New York. Of 557 departures recorded from October 2024 to July 2026, 79.1% left on time, according to the US BTS.
- On-time departures79.1%of 557 flights
- Average delay11.0 min
- July 202656▲ 366.7%vs July 2025
- Cancelled4.7%
- 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 | 24 | 14 | ▼ 41.7% |
| February | 24 | 14 | ▼ 41.7% |
| March | 28 | 30 | ▲ 7.1% |
| April | 42 | 7 | ▼ 83.3% |
| May | 52 | 22 | ▼ 57.7% |
| June | 30 | 56 | ▲ 86.7% |
| July | 12 | 56 | ▲ 366.7% |
| August | 2 | – | – |
| September | 8 | – | – |
| October | 28 | – | in progress |
| November | 19 | – | – |
| December | 27 | – | – |
| Year to date (Jan–Jul) | 212 | 199 | ▼ 6.1% |
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 | 83.3% | 92.9% | ▲ 11.4% |
| February | 85.7% | 71.4% | ▼ 16.7% |
| March | 82.1% | 86.2% | ▲ 5.0% |
| April | 82.9% | 71.4% | ▼ 13.9% |
| May | 92.3% | 68.2% | ▼ 26.1% |
| June | 60.0% | 80.4% | ▲ 34.0% |
| July | 55.6% | 70.6% | ▲ 27.1% |
| August | 50.0% | – | – |
| September | 75.0% | – | – |
| October | 67.9% | – | in progress |
| November | 81.3% | – | – |
| December | 70.4% | – | – |
| Year-to-date average (Jan–Jul) | 77.4% | 77.3% | ▼ 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 | 0 | 0 | – |
| February | 3 | 0 | ▼ 100.0% |
| March | 0 | 1 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 5 | 5 | 0.0% |
| July | 3 | 5 | ▲ 66.7% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 12 | 11 | ▼ 8.3% |
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 95.3% 531
- Cancelled 4.7% 26
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS LGA Boston Logan International Airport – LaGuardia Airport | 296 | 6.3 min | 81.0% | 82 |
| IND DCA Indianapolis International Airport – Ronald Reagan Washington National Airport | 802 | 19.7 min | 71.7% | 69 |
| DCA IND Ronald Reagan Washington National Airport – Indianapolis International Airport | 802 | 10.5 min | 76.6% | 65 |
| PVD DCA Rhode Island T. F. Green International Airport – Ronald Reagan Washington National Airport | 573 | -4.2 min | 93.8% | 32 |
| DCA PVD Ronald Reagan Washington National Airport – Rhode Island T. F. Green International Airport | 573 | -2.6 min | 87.5% | 32 |
| PHL EYW Philadelphia International Airport – Key West International Airport | 1,809 | 0.6 min | 86.2% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 20 | 20 | 85.0% | 0 |
| December 2024 | 22 | 22 | 77.3% | 0 |
| January 2025 | 24 | 24 | 83.3% | 0 |
| February 2025 | 24 | 21 | 85.7% | 3 |
| March 2025 | 28 | 28 | 82.1% | 0 |
| April 2025 | 42 | 41 | 82.9% | 1 |
| May 2025 | 52 | 52 | 92.3% | 0 |
| June 2025 | 30 | 25 | 60.0% | 5 |
| July 2025 | 12 | 9 | 55.6% | 3 |
| August 2025 | 2 | 2 | 50.0% | 0 |
| September 2025 | 8 | 8 | 75.0% | 0 |
| October 2025 | 28 | 28 | 67.9% | 0 |
| November 2025 | 19 | 16 | 81.3% | 3 |
| December 2025 | 27 | 27 | 70.4% | 0 |
| January 2026 | 14 | 14 | 92.9% | 0 |
| February 2026 | 14 | 14 | 71.4% | 0 |
| March 2026 | 30 | 29 | 86.2% | 1 |
| April 2026 | 7 | 7 | 71.4% | 0 |
| May 2026 | 22 | 22 | 68.2% | 0 |
| June 2026 | 56 | 51 | 80.4% | 5 |
| July 2026 | 56 | 51 | 70.6% | 5 |