YX4509
YX4509 (Republic Airways) is a multi-stop service on 28 routes, busiest New York to Norfolk. Of 757 departures recorded from October 2024 to July 2026, 83.8% left on time, according to the US BTS.
- On-time departures83.8%of 757 flights
- Average delay6.9 min
- July 202658▲ 26.1%vs July 2025
- Cancelled3.7%
- Legs flown under this number28
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 36 | 32 | ▼ 11.1% |
| February | 26 | 18 | ▼ 30.8% |
| March | 26 | 48 | ▲ 84.6% |
| April | 30 | 35 | ▲ 16.7% |
| May | 31 | 39 | ▲ 25.8% |
| June | 5 | 56 | ▲ 1,020.0% |
| July | 46 | 58 | ▲ 26.1% |
| August | 34 | – | – |
| September | 57 | – | – |
| October | 10 | – | in progress |
| November | 24 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 200 | 286 | ▲ 43.0% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 96.8% | 76.7% | ▼ 20.8% |
| February | 70.8% | 72.2% | ▲ 2.0% |
| March | 88.5% | 80.9% | ▼ 8.6% |
| April | 96.7% | 91.4% | ▼ 5.4% |
| May | 66.7% | 87.2% | ▲ 30.8% |
| June | 100.0% | 90.9% | ▼ 9.1% |
| July | 55.0% | 82.4% | ▲ 49.7% |
| August | 97.0% | – | – |
| September | 89.5% | – | – |
| October | 100.0% | – | in progress |
| November | 68.2% | – | – |
| December | 80.0% | – | – |
| Year-to-date average (Jan–Jul) | 82.1% | 83.1% | ▲ 1.3% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 5 | 2 | ▼ 60.0% |
| February | 2 | 0 | ▼ 100.0% |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 1 | – |
| July | 6 | 7 | ▲ 16.7% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 14 | 11 | ▼ 21.4% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 96.3% 729
- Cancelled 3.7% 28
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| JFK ORF John F. Kennedy International Airport – Norfolk International Airport | 466 | 1.9 min | 85.7% | 106 |
| PIT LGA Pittsburgh International Airport – LaGuardia Airport | 538 | 15.4 min | 74.7% | 83 |
| LGA STL LaGuardia Airport – St. Louis Lambert International Airport | 1,426 | 9.5 min | 85.5% | 72 |
| STL LGA St. Louis Lambert International Airport – LaGuardia Airport | 1,426 | 11.8 min | 85.7% | 61 |
| PHL SAV Philadelphia International Airport – Savannah Hilton Head International Airport | 1,014 | -6.3 min | 96.9% | 36 |
| PHL EYW Philadelphia International Airport – Key West International Airport | 1,809 | -4.3 min | 97.0% | 33 |
| EYW PHL Key West International Airport – Philadelphia International Airport | 1,809 | 1.0 min | 87.9% | 33 |
| JFK RDU John F. Kennedy International Airport – Raleigh-Durham International Airport | 686 | 7.8 min | 86.7% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 36 | 36 | 91.7% | 0 |
| November 2024 | 28 | 28 | 89.3% | 0 |
| December 2024 | 52 | 52 | 82.7% | 0 |
| January 2025 | 36 | 31 | 96.8% | 5 |
| February 2025 | 26 | 24 | 70.8% | 2 |
| March 2025 | 26 | 26 | 88.5% | 0 |
| April 2025 | 30 | 30 | 96.7% | 0 |
| May 2025 | 31 | 30 | 66.7% | 1 |
| June 2025 | 5 | 5 | 100.0% | 0 |
| July 2025 | 46 | 40 | 55.0% | 6 |
| August 2025 | 34 | 33 | 97.0% | 1 |
| September 2025 | 57 | 57 | 89.5% | 0 |
| October 2025 | 10 | 10 | 100.0% | 0 |
| November 2025 | 24 | 22 | 68.2% | 2 |
| December 2025 | 30 | 30 | 80.0% | 0 |
| January 2026 | 32 | 30 | 76.7% | 2 |
| February 2026 | 18 | 18 | 72.2% | 0 |
| March 2026 | 48 | 47 | 80.9% | 1 |
| April 2026 | 35 | 35 | 91.4% | 0 |
| May 2026 | 39 | 39 | 87.2% | 0 |
| June 2026 | 56 | 55 | 90.9% | 1 |
| July 2026 | 58 | 51 | 82.4% | 7 |