YX4571
YX4571 (Republic Airways) is a multi-stop service on 19 routes, busiest New York to Portland. Of 501 departures recorded from October 2024 to July 2026, 81.7% left on time, according to the US BTS.
- On-time departures81.7%of 501 flights
- Average delay7.8 min
- July 20265▼ 73.7%vs July 2025
- Cancelled4.2%
- 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 | 12 | 27 | ▲ 125.0% |
| February | 4 | 14 | ▲ 250.0% |
| March | 4 | 4 | 0.0% |
| April | 26 | 25 | ▼ 3.8% |
| May | 26 | 24 | ▼ 7.7% |
| June | 36 | 4 | ▼ 88.9% |
| July | 19 | 5 | ▼ 73.7% |
| August | 15 | – | – |
| September | 56 | – | – |
| October | 62 | – | in progress |
| November | 28 | – | – |
| December | 18 | – | – |
| Year to date (Jan–Jul) | 127 | 103 | ▼ 18.9% |
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 | 100.0% | 77.3% | ▼ 22.7% |
| February | 100.0% | 78.6% | ▼ 21.4% |
| March | 75.0% | 75.0% | 0.0% |
| April | 92.3% | 88.0% | ▼ 4.7% |
| May | 92.3% | 79.2% | ▼ 14.2% |
| June | 68.8% | 66.7% | ▼ 3.0% |
| July | 66.7% | 100.0% | ▲ 50.0% |
| August | 100.0% | – | – |
| September | 87.5% | – | – |
| October | 74.2% | – | in progress |
| November | 85.2% | – | – |
| December | 43.8% | – | – |
| Year-to-date average (Jan–Jul) | 85.0% | 80.7% | ▼ 5.1% |
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 | 3 | 5 | ▲ 66.7% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 4 | 1 | ▼ 75.0% |
| July | 4 | 1 | ▼ 75.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 11 | 7 | ▼ 36.4% |
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 95.8% 480
- Cancelled 4.2% 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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LGA PWM LaGuardia Airport – Portland International Jetport | 433 | 1.3 min | 87.8% | 180 |
| PWM LGA Portland International Jetport – LaGuardia Airport | 433 | 14.4 min | 73.5% | 83 |
| RDU DCA Raleigh-Durham International Airport – Ronald Reagan Washington National Airport | 365 | 16.9 min | 72.7% | 74 |
| BOS LGA Boston Logan International Airport – LaGuardia Airport | 296 | 4.0 min | 88.3% | 60 |
| DCA RDU Ronald Reagan Washington National Airport – Raleigh-Durham International Airport | 365 | 15.1 min | 78.1% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 29 | 29 | 89.7% | 0 |
| December 2024 | 43 | 43 | 74.4% | 0 |
| January 2025 | 12 | 9 | 100.0% | 3 |
| February 2025 | 4 | 4 | 100.0% | 0 |
| March 2025 | 4 | 4 | 75.0% | 0 |
| April 2025 | 26 | 26 | 92.3% | 0 |
| May 2025 | 26 | 26 | 92.3% | 0 |
| June 2025 | 36 | 32 | 68.8% | 4 |
| July 2025 | 19 | 15 | 66.7% | 4 |
| August 2025 | 15 | 15 | 100.0% | 0 |
| September 2025 | 56 | 56 | 87.5% | 0 |
| October 2025 | 62 | 62 | 74.2% | 0 |
| November 2025 | 28 | 27 | 85.2% | 1 |
| December 2025 | 18 | 16 | 43.8% | 2 |
| January 2026 | 27 | 22 | 77.3% | 5 |
| February 2026 | 14 | 14 | 78.6% | 0 |
| March 2026 | 4 | 4 | 75.0% | 0 |
| April 2026 | 25 | 25 | 88.0% | 0 |
| May 2026 | 24 | 24 | 79.2% | 0 |
| June 2026 | 4 | 3 | 66.7% | 1 |
| July 2026 | 5 | 4 | 100.0% | 1 |