YX4379
YX4379 (Republic Airways) is a multi-stop service on 19 routes, busiest New York to Nashville. Of 704 departures recorded from October 2024 to July 2026, 86.4% left on time, according to the US BTS.
- On-time departures86.4%of 704 flights
- Average delay5.4 min
- July 202662▲ 100.0%vs July 2025
- Cancelled2.6%
- Legs flown under this number19
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 | 31 | 25 | ▼ 19.4% |
| February | 27 | 26 | ▼ 3.7% |
| March | 31 | 31 | 0.0% |
| April | 30 | 33 | ▲ 10.0% |
| May | 31 | 45 | ▲ 45.2% |
| June | 30 | 60 | ▲ 100.0% |
| July | 31 | 62 | ▲ 100.0% |
| August | 31 | – | – |
| September | 26 | – | – |
| October | 30 | – | in progress |
| November | 12 | – | – |
| December | 32 | – | – |
| Year to date (Jan–Jul) | 211 | 282 | ▲ 33.6% |
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 | 92.6% | 87.5% | ▼ 5.5% |
| February | 100.0% | 95.8% | ▼ 4.2% |
| March | 96.8% | 70.0% | ▼ 27.7% |
| April | 83.3% | 81.8% | ▼ 1.8% |
| May | 83.9% | 88.9% | ▲ 6.0% |
| June | 70.0% | 93.1% | ▲ 33.0% |
| July | 74.2% | 81.0% | ▲ 9.2% |
| August | 90.3% | – | – |
| September | 100.0% | – | – |
| October | 82.8% | – | in progress |
| November | 83.3% | – | – |
| December | 65.6% | – | – |
| Year-to-date average (Jan–Jul) | 85.8% | 85.5% | ▼ 0.4% |
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 | 4 | 1 | ▼ 75.0% |
| February | 3 | 2 | ▼ 33.3% |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 2 | – |
| July | 0 | 4 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 7 | 10 | ▲ 42.9% |
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 97.4% 686
- Cancelled 2.6% 18
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LGA BNA LaGuardia Airport – Nashville International Airport | 1,228 | 6.6 min | 82.8% | 204 |
| DCA JFK Ronald Reagan Washington National Airport – John F. Kennedy International Airport | 342 | -1.9 min | 95.6% | 143 |
| LGA BUF LaGuardia Airport – Buffalo Niagara International Airport | 469 | 3.3 min | 89.9% | 72 |
| BUF LGA Buffalo Niagara International Airport – LaGuardia Airport | 469 | 10.9 min | 81.2% | 72 |
| BOS PHL Boston Logan International Airport – Philadelphia International Airport | 450 | 18.1 min | 78.4% | 54 |
| DCA PIT Ronald Reagan Washington National Airport – Pittsburgh International Airport | 329 | 2.5 min | 89.6% | 48 |
| DCA BOS Ronald Reagan Washington National Airport – Boston Logan International Airport | 641 | -2.3 min | 94.7% | 38 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 30 | 30 | 93.3% | 0 |
| January 2025 | 31 | 27 | 92.6% | 4 |
| February 2025 | 27 | 24 | 100.0% | 3 |
| March 2025 | 31 | 31 | 96.8% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 31 | 31 | 83.9% | 0 |
| June 2025 | 30 | 30 | 70.0% | 0 |
| July 2025 | 31 | 31 | 74.2% | 0 |
| August 2025 | 31 | 31 | 90.3% | 0 |
| September 2025 | 26 | 26 | 100.0% | 0 |
| October 2025 | 30 | 29 | 82.8% | 1 |
| November 2025 | 12 | 12 | 83.3% | 0 |
| December 2025 | 32 | 32 | 65.6% | 0 |
| January 2026 | 25 | 24 | 87.5% | 1 |
| February 2026 | 26 | 24 | 95.8% | 2 |
| March 2026 | 31 | 30 | 70.0% | 1 |
| April 2026 | 33 | 33 | 81.8% | 0 |
| May 2026 | 45 | 45 | 88.9% | 0 |
| June 2026 | 60 | 58 | 93.1% | 2 |
| July 2026 | 62 | 58 | 81.0% | 4 |