YX4424
YX4424 (Republic Airways) is a multi-stop service on 14 routes, busiest Boston to New York. Of 590 departures recorded from October 2024 to July 2026, 93.7% left on time, according to the US BTS.
- On-time departures93.7%of 590 flights
- Average delay-1.7 min
- July 202627▲ 3.8%vs July 2025
- Cancelled3.1%
- 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 | 27 | 23 | ▼ 14.8% |
| February | 28 | 23 | ▼ 17.9% |
| March | 31 | 30 | ▼ 3.2% |
| April | 30 | 27 | ▼ 10.0% |
| May | 31 | 26 | ▼ 16.1% |
| June | 26 | 26 | 0.0% |
| July | 26 | 27 | ▲ 3.8% |
| August | 26 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 28 | – | – |
| December | 27 | – | – |
| Year to date (Jan–Jul) | 199 | 182 | ▼ 8.5% |
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 | 92.3% | 100.0% | ▲ 8.3% |
| February | 92.0% | 95.2% | ▲ 3.5% |
| March | 90.3% | 92.9% | ▲ 2.8% |
| April | 96.7% | 88.9% | ▼ 8.0% |
| May | 90.3% | 100.0% | ▲ 10.7% |
| June | 80.0% | 96.2% | ▲ 20.2% |
| July | 87.5% | 91.7% | ▲ 4.8% |
| August | 100.0% | – | – |
| September | 100.0% | – | – |
| October | 96.8% | – | in progress |
| November | 96.3% | – | – |
| December | 92.3% | – | – |
| Year-to-date average (Jan–Jul) | 89.9% | 95.0% | ▲ 5.7% |
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 | 2 | ▲ 100.0% |
| February | 3 | 2 | ▼ 33.3% |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 2 | 3 | ▲ 50.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 7 | 9 | ▲ 28.6% |
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 96.9% 572
- Cancelled 3.1% 18
Share of all recorded flights in the period, all legs. · Oct 14, 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 | -3.6 min | 95.7% | 294 |
| SYR ORD Syracuse Hancock International Airport – Chicago O'Hare International Airport | 974 | 1.3 min | 90.1% | 95 |
| ORF LGA Norfolk International Airport – LaGuardia Airport | 476 | -4.0 min | 95.7% | 69 |
| BOS CMH Boston Logan International Airport – John Glenn Columbus International Airport | 1,028 | -6.3 min | 100.0% | 33 |
| DCA PVD Ronald Reagan Washington National Airport – Rhode Island T. F. Green International Airport | 573 | 2.2 min | 90.3% | 31 |
| PHL PIT Philadelphia International Airport – Pittsburgh International Airport | 430 | -7.3 min | 96.7% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 100.0% | 0 |
| November 2024 | 28 | 28 | 96.4% | 0 |
| December 2024 | 25 | 25 | 88.0% | 0 |
| January 2025 | 27 | 26 | 92.3% | 1 |
| February 2025 | 28 | 25 | 92.0% | 3 |
| March 2025 | 31 | 31 | 90.3% | 0 |
| April 2025 | 30 | 30 | 96.7% | 0 |
| May 2025 | 31 | 31 | 90.3% | 0 |
| June 2025 | 26 | 25 | 80.0% | 1 |
| July 2025 | 26 | 24 | 87.5% | 2 |
| August 2025 | 26 | 26 | 100.0% | 0 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 31 | 31 | 96.8% | 0 |
| November 2025 | 28 | 27 | 96.3% | 1 |
| December 2025 | 27 | 26 | 92.3% | 1 |
| January 2026 | 23 | 21 | 100.0% | 2 |
| February 2026 | 23 | 21 | 95.2% | 2 |
| March 2026 | 30 | 28 | 92.9% | 2 |
| April 2026 | 27 | 27 | 88.9% | 0 |
| May 2026 | 26 | 26 | 100.0% | 0 |
| June 2026 | 26 | 26 | 96.2% | 0 |
| July 2026 | 27 | 24 | 91.7% | 3 |