YX4582
YX4582 (Republic Airways) is a multi-stop service on 29 routes, busiest New York to Portland. Of 596 departures recorded from October 2024 to July 2026, 84.8% left on time, according to the US BTS.
- On-time departures84.8%of 596 flights
- Average delay6.4 min
- July 20268▼ 84.6%vs July 2025
- Cancelled3.0%
- Legs flown under this number29
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 | 11 | 27 | ▲ 145.5% |
| February | 4 | 25 | ▲ 525.0% |
| March | 3 | 14 | ▲ 366.7% |
| April | 57 | 47 | ▼ 17.5% |
| May | 54 | 41 | ▼ 24.1% |
| June | 48 | 8 | ▼ 83.3% |
| July | 52 | 8 | ▼ 84.6% |
| August | 56 | – | – |
| September | 32 | – | – |
| October | 9 | – | in progress |
| November | 4 | – | – |
| December | 17 | – | – |
| Year to date (Jan–Jul) | 229 | 170 | ▼ 25.8% |
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% | 70.8% | ▼ 29.2% |
| February | 75.0% | 78.3% | ▲ 4.3% |
| March | 100.0% | 78.6% | ▼ 21.4% |
| April | 96.4% | 74.5% | ▼ 22.8% |
| May | 86.8% | 77.5% | ▼ 10.7% |
| June | 85.4% | 71.4% | ▼ 16.4% |
| July | 83.7% | 100.0% | ▲ 19.5% |
| August | 94.6% | – | – |
| September | 83.9% | – | – |
| October | 77.8% | – | in progress |
| November | 100.0% | – | – |
| December | 46.7% | – | – |
| Year-to-date average (Jan–Jul) | 89.6% | 78.7% | ▼ 12.2% |
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 | 1 | 0 | ▼ 100.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 1 | 1 | 0.0% |
| June | 0 | 1 | – |
| July | 3 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 6 | 7 | ▲ 16.7% |
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 97.0% 578
- Cancelled 3.0% 18
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 26, 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 PWM LaGuardia Airport – Portland International Jetport | 433 | 5.8 min | 85.0% | 135 |
| PWM LGA Portland International Jetport – LaGuardia Airport | 433 | 2.5 min | 92.9% | 101 |
| LGA ATL LaGuardia Airport – Hartsfield Jackson Atlanta International Airport | 1,225 | 8.7 min | 79.1% | 43 |
| ORD BOS Chicago O'Hare International Airport – Boston Logan International Airport | 1,391 | 15.3 min | 70.3% | 42 |
| ATL LGA Hartsfield Jackson Atlanta International Airport – LaGuardia Airport | 1,225 | 12.7 min | 73.0% | 38 |
| ORD BUF Chicago O'Hare International Airport – Buffalo Niagara International Airport | 760 | -1.7 min | 100.0% | 31 |
| BUF ORD Buffalo Niagara International Airport – Chicago O'Hare International Airport | 760 | -4.8 min | 96.8% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 92.5% | 0 |
| November 2024 | 12 | 12 | 100.0% | 0 |
| December 2024 | 27 | 26 | 84.6% | 1 |
| January 2025 | 11 | 11 | 100.0% | 0 |
| February 2025 | 4 | 4 | 75.0% | 0 |
| March 2025 | 3 | 2 | 100.0% | 1 |
| April 2025 | 57 | 56 | 96.4% | 1 |
| May 2025 | 54 | 53 | 86.8% | 1 |
| June 2025 | 48 | 48 | 85.4% | 0 |
| July 2025 | 52 | 49 | 83.7% | 3 |
| August 2025 | 56 | 55 | 94.6% | 1 |
| September 2025 | 32 | 31 | 83.9% | 1 |
| October 2025 | 9 | 9 | 77.8% | 0 |
| November 2025 | 4 | 4 | 100.0% | 0 |
| December 2025 | 17 | 15 | 46.7% | 2 |
| January 2026 | 27 | 24 | 70.8% | 3 |
| February 2026 | 25 | 23 | 78.3% | 2 |
| March 2026 | 14 | 14 | 78.6% | 0 |
| April 2026 | 47 | 47 | 74.5% | 0 |
| May 2026 | 41 | 40 | 77.5% | 1 |
| June 2026 | 8 | 7 | 71.4% | 1 |
| July 2026 | 8 | 8 | 100.0% | 0 |