YX4666
YX4666 (Republic Airways) is a multi-stop service on 16 routes, busiest Cincinnati to New York. Of 703 departures recorded from October 2024 to July 2026, 87.2% left on time, according to the US BTS.
- On-time departures87.2%of 703 flights
- Average delay4.4 min
- July 202662▲ 129.6%vs July 2025
- Cancelled2.6%
- Legs flown under this number16
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 | 24 | 34 | ▲ 41.7% |
| February | 20 | 40 | ▲ 100.0% |
| March | 21 | 54 | ▲ 157.1% |
| April | 30 | 34 | ▲ 13.3% |
| May | 24 | 41 | ▲ 70.8% |
| June | 25 | 60 | ▲ 140.0% |
| July | 27 | 62 | ▲ 129.6% |
| August | 26 | – | – |
| September | 10 | – | – |
| October | 48 | – | in progress |
| November | 26 | – | – |
| December | 25 | – | – |
| Year to date (Jan–Jul) | 171 | 325 | ▲ 90.1% |
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 | 95.7% | 80.0% | ▼ 16.4% |
| February | 90.0% | 70.0% | ▼ 22.2% |
| March | 95.2% | 67.3% | ▼ 29.3% |
| April | 90.0% | 81.8% | ▼ 9.1% |
| May | 95.8% | 97.5% | ▲ 1.7% |
| June | 92.0% | 90.0% | ▼ 2.2% |
| July | 88.9% | 98.3% | ▲ 10.6% |
| August | 100.0% | – | – |
| September | 80.0% | – | – |
| October | 76.1% | – | in progress |
| November | 96.0% | – | – |
| December | 78.3% | – | – |
| Year-to-date average (Jan–Jul) | 92.5% | 83.6% | ▼ 9.7% |
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 | 1 | 4 | ▲ 300.0% |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 1 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 4 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 2 | – | in progress |
| November | 1 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 1 | 12 | ▲ 1,100.0% |
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 97.4% 685
- Cancelled 2.6% 18
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| CVG LGA Cincinnati Northern Kentucky International Airport – LaGuardia Airport | 940 | -0.4 min | 92.6% | 271 |
| BUF BOS Buffalo Niagara International Airport – Boston Logan International Airport | 635 | -1.9 min | 94.3% | 72 |
| BOS BUF Boston Logan International Airport – Buffalo Niagara International Airport | 635 | -0.7 min | 94.2% | 71 |
| ROC DCA Frederick Douglass Greater Rochester International Airport – Ronald Reagan Washington National Airport | 477 | 6.9 min | 86.9% | 66 |
| SYR ORD Syracuse Hancock International Airport – Chicago O'Hare International Airport | 974 | 20.9 min | 65.1% | 46 |
| ORD SYR Chicago O'Hare International Airport – Syracuse Hancock International Airport | 974 | 12.3 min | 71.7% | 46 |
| ORD RDU Chicago O'Hare International Airport – Raleigh-Durham International Airport | 1,039 | 0.9 min | 90.7% | 44 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 23 | 23 | 100.0% | 0 |
| December 2024 | 29 | 29 | 79.3% | 0 |
| January 2025 | 24 | 23 | 95.7% | 1 |
| February 2025 | 20 | 20 | 90.0% | 0 |
| March 2025 | 21 | 21 | 95.2% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 24 | 24 | 95.8% | 0 |
| June 2025 | 25 | 25 | 92.0% | 0 |
| July 2025 | 27 | 27 | 88.9% | 0 |
| August 2025 | 26 | 26 | 100.0% | 0 |
| September 2025 | 10 | 10 | 80.0% | 0 |
| October 2025 | 48 | 46 | 76.1% | 2 |
| November 2025 | 26 | 25 | 96.0% | 1 |
| December 2025 | 25 | 23 | 78.3% | 2 |
| January 2026 | 34 | 30 | 80.0% | 4 |
| February 2026 | 40 | 40 | 70.0% | 0 |
| March 2026 | 54 | 52 | 67.3% | 2 |
| April 2026 | 34 | 33 | 81.8% | 1 |
| May 2026 | 41 | 40 | 97.5% | 1 |
| June 2026 | 60 | 60 | 90.0% | 0 |
| July 2026 | 62 | 58 | 98.3% | 4 |