YX4646
YX4646 (Republic Airways) is a multi-stop service on 22 routes, busiest Boston to New York. Of 523 departures recorded from October 2024 to July 2026, 81.9% left on time, according to the US BTS.
- On-time departures81.9%of 523 flights
- Average delay6.6 min
- July 20264▲ 0.0%vs July 2025
- Cancelled4.0%
- Legs flown under this number22
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 33 | 25 | ▼ 24.2% |
| February | 12 | 27 | ▲ 125.0% |
| March | 1 | 31 | ▲ 3,000.0% |
| April | 46 | 54 | ▲ 17.4% |
| May | 52 | 40 | ▼ 23.1% |
| June | 34 | 4 | ▼ 88.2% |
| July | 4 | 4 | 0.0% |
| August | – | – | – |
| September | 20 | – | – |
| October | 26 | – | in progress |
| November | – | – | – |
| December | 5 | – | – |
| Year to date (Jan–Jul) | 182 | 185 | ▲ 1.6% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 90.3% | 63.6% | ▼ 29.5% |
| February | 80.0% | 88.9% | ▲ 11.1% |
| March | 100.0% | 63.0% | ▼ 37.0% |
| April | 80.4% | 83.3% | ▲ 3.6% |
| May | 61.7% | 97.4% | ▲ 57.9% |
| June | 90.9% | 100.0% | ▲ 10.0% |
| July | 100.0% | 25.0% | ▼ 75.0% |
| August | – | – | – |
| September | 95.0% | – | – |
| October | 52.2% | – | in progress |
| November | – | – | – |
| December | 0.0% | – | – |
| Year-to-date average (Jan–Jul) | 86.2% | 74.5% | ▼ 13.6% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 3 | ▲ 50.0% |
| February | 2 | 0 | ▼ 100.0% |
| March | 0 | 4 | – |
| April | 0 | 0 | – |
| May | 5 | 1 | ▼ 80.0% |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | – | – | – |
| September | 0 | – | – |
| October | 3 | – | in progress |
| November | – | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 10 | 8 | ▼ 20.0% |
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 96.0% 502
- Cancelled 4.0% 21
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 25, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS LGA Boston Logan International Airport – LaGuardia Airport | 296 | 12.9 min | 70.0% | 53 |
| LGA BOS LaGuardia Airport – Boston Logan International Airport | 296 | 13.5 min | 76.5% | 53 |
| SDF ORD Louisville Muhammad Ali International Airport – Chicago O'Hare International Airport | 462 | -3.7 min | 92.9% | 43 |
| ORD SDF Chicago O'Hare International Airport – Louisville Muhammad Ali International Airport | 462 | 0.5 min | 90.7% | 43 |
| JAX DCA Jacksonville International Airport – Ronald Reagan Washington National Airport | 1,022 | -1.6 min | 89.3% | 32 |
| LGA DCA LaGuardia Airport – Ronald Reagan Washington National Airport | 345 | 18.4 min | 79.3% | 32 |
| ATL LGA Hartsfield Jackson Atlanta International Airport – LaGuardia Airport | 1,225 | 32.3 min | 57.7% | 30 |
| RDU DCA Raleigh-Durham International Airport – Ronald Reagan Washington National Airport | 365 | 1.6 min | 89.7% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 46 | 46 | 93.5% | 0 |
| December 2024 | 39 | 39 | 94.9% | 0 |
| January 2025 | 33 | 31 | 90.3% | 2 |
| February 2025 | 12 | 10 | 80.0% | 2 |
| March 2025 | 1 | 1 | 100.0% | 0 |
| April 2025 | 46 | 46 | 80.4% | 0 |
| May 2025 | 52 | 47 | 61.7% | 5 |
| June 2025 | 34 | 33 | 90.9% | 1 |
| July 2025 | 4 | 4 | 100.0% | 0 |
| September 2025 | 20 | 20 | 95.0% | 0 |
| October 2025 | 26 | 23 | 52.2% | 3 |
| December 2025 | 5 | 5 | 0.0% | 0 |
| January 2026 | 25 | 22 | 63.6% | 3 |
| February 2026 | 27 | 27 | 88.9% | 0 |
| March 2026 | 31 | 27 | 63.0% | 4 |
| April 2026 | 54 | 54 | 83.3% | 0 |
| May 2026 | 40 | 39 | 97.4% | 1 |
| June 2026 | 4 | 4 | 100.0% | 0 |
| July 2026 | 4 | 4 | 25.0% | 0 |