YX4436
YX4436 (Republic Airways) is a multi-stop service on 13 routes, busiest Washington to New York. Of 633 departures recorded from October 2024 to July 2026, 75.8% left on time, according to the US BTS.
- On-time departures75.8%of 633 flights
- Average delay13.2 min
- July 202630▲ 0.0%vs July 2025
- Cancelled4.6%
- Legs flown under this number13
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 | 31 | ▲ 14.8% |
| February | 26 | 28 | ▲ 7.7% |
| March | 31 | 31 | 0.0% |
| April | 30 | 27 | ▼ 10.0% |
| May | 29 | 28 | ▼ 3.4% |
| June | 30 | 30 | 0.0% |
| July | 30 | 30 | 0.0% |
| August | 27 | – | – |
| September | 31 | – | – |
| October | 31 | – | in progress |
| November | 31 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 203 | 205 | ▲ 1.0% |
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 | 96.3% | 89.3% | ▼ 7.3% |
| February | 76.9% | 61.5% | ▼ 20.0% |
| March | 89.7% | 51.6% | ▼ 42.4% |
| April | 73.3% | 70.4% | ▼ 4.0% |
| May | 75.9% | 73.1% | ▼ 3.7% |
| June | 57.7% | 62.1% | ▲ 7.6% |
| July | 66.7% | 66.7% | 0.0% |
| August | 73.1% | – | – |
| September | 93.6% | – | – |
| October | 83.9% | – | in progress |
| November | 83.3% | – | – |
| December | 58.6% | – | – |
| Year-to-date average (Jan–Jul) | 76.6% | 67.8% | ▼ 11.5% |
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 | 3 | – |
| February | 0 | 2 | – |
| March | 2 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 2 | – |
| June | 4 | 1 | ▼ 75.0% |
| July | 9 | 3 | ▼ 66.7% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 15 | 11 | ▼ 26.7% |
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 95.4% 604
- Cancelled 4.6% 29
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DCA LGA Ronald Reagan Washington National Airport – LaGuardia Airport | 345 | 19.1 min | 68.2% | 155 |
| LGA RDU LaGuardia Airport – Raleigh-Durham International Airport | 693 | 21.6 min | 65.1% | 147 |
| PVD ORD Rhode Island T. F. Green International Airport – Chicago O'Hare International Airport | 1,363 | 4.9 min | 85.4% | 125 |
| LGA BOS LaGuardia Airport – Boston Logan International Airport | 296 | 17.3 min | 73.1% | 69 |
| LGA DCA LaGuardia Airport – Ronald Reagan Washington National Airport | 345 | -0.9 min | 87.5% | 48 |
| RDU ORD Raleigh-Durham International Airport – Chicago O'Hare International Airport | 1,039 | 0.2 min | 93.8% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 28 | 28 | 89.3% | 0 |
| December 2024 | 27 | 27 | 81.5% | 0 |
| January 2025 | 27 | 27 | 96.3% | 0 |
| February 2025 | 26 | 26 | 76.9% | 0 |
| March 2025 | 31 | 29 | 89.7% | 2 |
| April 2025 | 30 | 30 | 73.3% | 0 |
| May 2025 | 29 | 29 | 75.9% | 0 |
| June 2025 | 30 | 26 | 57.7% | 4 |
| July 2025 | 30 | 21 | 66.7% | 9 |
| August 2025 | 27 | 26 | 73.1% | 1 |
| September 2025 | 31 | 31 | 93.6% | 0 |
| October 2025 | 31 | 31 | 83.9% | 0 |
| November 2025 | 31 | 30 | 83.3% | 1 |
| December 2025 | 30 | 29 | 58.6% | 1 |
| January 2026 | 31 | 28 | 89.3% | 3 |
| February 2026 | 28 | 26 | 61.5% | 2 |
| March 2026 | 31 | 31 | 51.6% | 0 |
| April 2026 | 27 | 27 | 70.4% | 0 |
| May 2026 | 28 | 26 | 73.1% | 2 |
| June 2026 | 30 | 29 | 62.1% | 1 |
| July 2026 | 30 | 27 | 66.7% | 3 |