YX4427
YX4427 (Republic Airways) is a multi-stop service on 9 routes, busiest New York to Indianapolis. Of 568 departures recorded from October 2024 to July 2026, 78.2% left on time, according to the US BTS.
- On-time departures78.2%of 568 flights
- Average delay12.9 min
- July 202631▲ 0.0%vs July 2025
- Cancelled3.2%
- Legs flown under this number9
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 | 12 | ▼ 55.6% |
| February | 26 | 17 | ▼ 34.6% |
| March | 31 | 27 | ▼ 12.9% |
| April | 26 | 29 | ▲ 11.5% |
| May | 26 | 31 | ▲ 19.2% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 27 | – | – |
| September | 30 | – | – |
| October | 7 | – | in progress |
| November | 26 | – | – |
| December | 28 | – | – |
| Year to date (Jan–Jul) | 197 | 177 | ▼ 10.2% |
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 | 64.0% | 90.9% | ▲ 42.0% |
| February | 80.8% | 53.3% | ▼ 34.0% |
| March | 74.2% | 52.2% | ▼ 29.7% |
| April | 92.3% | 79.3% | ▼ 14.1% |
| May | 65.4% | 83.3% | ▲ 27.5% |
| June | 69.0% | 93.3% | ▲ 35.3% |
| July | 78.6% | 83.9% | ▲ 6.7% |
| August | 69.2% | – | – |
| September | 93.3% | – | – |
| October | 85.7% | – | in progress |
| November | 60.0% | – | – |
| December | 73.1% | – | – |
| Year-to-date average (Jan–Jul) | 74.9% | 76.6% | ▲ 2.3% |
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 | 2 | 1 | ▼ 50.0% |
| February | 0 | 2 | – |
| March | 0 | 4 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 3 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 6 | 8 | ▲ 33.3% |
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 96.8% 550
- Cancelled 3.2% 18
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LGA IND LaGuardia Airport – Indianapolis International Airport | 1,060 | 14.9 min | 74.4% | 369 |
| PIT ORD Pittsburgh International Airport – Chicago O'Hare International Airport | 662 | -0.2 min | 88.9% | 72 |
| LGA RDU LaGuardia Airport – Raleigh-Durham International Airport | 693 | 31.7 min | 70.7% | 62 |
| MSY ORD Louis Armstrong New Orleans International Airport – Chicago O'Hare International Airport | 1,349 | -3.4 min | 93.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 100.0% | 0 |
| November 2024 | 29 | 29 | 93.1% | 0 |
| December 2024 | 30 | 30 | 83.3% | 0 |
| January 2025 | 27 | 25 | 64.0% | 2 |
| February 2025 | 26 | 26 | 80.8% | 0 |
| March 2025 | 31 | 31 | 74.2% | 0 |
| April 2025 | 26 | 26 | 92.3% | 0 |
| May 2025 | 26 | 26 | 65.4% | 0 |
| June 2025 | 30 | 29 | 69.0% | 1 |
| July 2025 | 31 | 28 | 78.6% | 3 |
| August 2025 | 27 | 26 | 69.2% | 1 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 7 | 7 | 85.7% | 0 |
| November 2025 | 26 | 25 | 60.0% | 1 |
| December 2025 | 28 | 26 | 73.1% | 2 |
| January 2026 | 12 | 11 | 90.9% | 1 |
| February 2026 | 17 | 15 | 53.3% | 2 |
| March 2026 | 27 | 23 | 52.2% | 4 |
| April 2026 | 29 | 29 | 79.3% | 0 |
| May 2026 | 31 | 30 | 83.3% | 1 |
| June 2026 | 30 | 30 | 93.3% | 0 |
| July 2026 | 31 | 31 | 83.9% | 0 |