YX4651
YX4651 (Republic Airways) is a multi-stop service on 19 routes, busiest Harrisburg to Chicago. Of 448 departures recorded from October 2024 to July 2026, 80.8% left on time, according to the US BTS.
- On-time departures80.8%of 448 flights
- Average delay10.3 min
- July 202631▲ 933.3%vs July 2025
- Cancelled3.6%
- Legs flown under this number19
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 5 | 49 | ▲ 880.0% |
| February | 2 | 34 | ▲ 1,600.0% |
| March | – | 27 | – |
| April | – | 29 | – |
| May | 1 | 30 | ▲ 2,900.0% |
| June | 4 | 30 | ▲ 650.0% |
| July | 3 | 31 | ▲ 933.3% |
| August | 53 | – | – |
| September | 58 | – | – |
| October | 11 | – | in progress |
| November | 28 | – | – |
| December | 21 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 80.0% | 68.2% | ▼ 14.8% |
| February | 50.0% | 56.3% | ▲ 12.5% |
| March | – | 76.9% | – |
| April | – | 86.2% | – |
| May | 100.0% | 96.6% | ▼ 3.5% |
| June | 50.0% | 100.0% | ▲ 100.0% |
| July | 50.0% | 96.7% | ▲ 93.3% |
| August | 76.9% | – | – |
| September | 87.7% | – | – |
| October | 100.0% | – | in progress |
| November | 74.1% | – | – |
| December | 45.0% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 5 | – |
| February | 0 | 2 | – |
| March | – | 1 | – |
| April | – | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 1 | – |
| July | 1 | 1 | 0.0% |
| August | 1 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
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 96.4% 432
- Cancelled 3.6% 16
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
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDT ORD Harrisburg International Airport – Chicago O'Hare International Airport | 954 | -4.2 min | 98.6% | 71 |
| DCA SYR Ronald Reagan Washington National Airport – Syracuse Hancock International Airport | 480 | 21.2 min | 66.1% | 63 |
| PHL BUF Philadelphia International Airport – Buffalo Niagara International Airport | 449 | -0.5 min | 93.0% | 44 |
| ORD MEM Chicago O'Hare International Airport – Frederick W. Smith International Airport | 792 | 6.6 min | 81.4% | 44 |
| ROC DCA Frederick Douglass Greater Rochester International Airport – Ronald Reagan Washington National Airport | 477 | 34.2 min | 62.1% | 32 |
| MEM ORD Frederick W. Smith International Airport – Chicago O'Hare International Airport | 792 | 0.7 min | 87.5% | 32 |
| DCA ROC Ronald Reagan Washington National Airport – Frederick Douglass Greater Rochester International Airport | 477 | 33.1 min | 63.3% | 32 |
| ORD IND Chicago O'Hare International Airport – Indianapolis International Airport | 286 | 29.0 min | 69.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 94.7% | 0 |
| November 2024 | 10 | 10 | 100.0% | 0 |
| December 2024 | 3 | 3 | 100.0% | 0 |
| January 2025 | 5 | 5 | 80.0% | 0 |
| February 2025 | 2 | 2 | 50.0% | 0 |
| May 2025 | 1 | 1 | 100.0% | 0 |
| June 2025 | 4 | 4 | 50.0% | 0 |
| July 2025 | 3 | 2 | 50.0% | 1 |
| August 2025 | 53 | 52 | 76.9% | 1 |
| September 2025 | 58 | 57 | 87.7% | 1 |
| October 2025 | 11 | 11 | 100.0% | 0 |
| November 2025 | 28 | 27 | 74.1% | 1 |
| December 2025 | 21 | 20 | 45.0% | 1 |
| January 2026 | 49 | 44 | 68.2% | 5 |
| February 2026 | 34 | 32 | 56.3% | 2 |
| March 2026 | 27 | 26 | 76.9% | 1 |
| April 2026 | 29 | 29 | 86.2% | 0 |
| May 2026 | 30 | 29 | 96.6% | 1 |
| June 2026 | 30 | 29 | 100.0% | 1 |
| July 2026 | 31 | 30 | 96.7% | 1 |