YX4643
YX4643 (Republic Airways) is a multi-stop service on 27 routes, busiest Indianapolis to Philadelphia. Of 596 departures recorded from October 2024 to July 2026, 83.2% left on time, according to the US BTS.
- On-time departures83.2%of 596 flights
- Average delay7.6 min
- July 202654▲ 1.9%vs July 2025
- Cancelled4.0%
- Legs flown under this number27
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 58 | 31 | ▼ 46.6% |
| February | 39 | 28 | ▼ 28.2% |
| March | 10 | 31 | ▲ 210.0% |
| April | 1 | 27 | ▲ 2,600.0% |
| May | 2 | 37 | ▲ 1,750.0% |
| June | 44 | 52 | ▲ 18.2% |
| July | 53 | 54 | ▲ 1.9% |
| August | 26 | – | – |
| September | 6 | – | – |
| October | – | – | in progress |
| November | 28 | – | – |
| December | 22 | – | – |
| Year to date (Jan–Jul) | 207 | 260 | ▲ 25.6% |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 91.4% | 70.0% | ▼ 23.4% |
| February | 91.9% | 76.9% | ▼ 16.3% |
| March | 100.0% | 80.0% | ▼ 20.0% |
| April | 0.0% | 92.6% | – |
| May | 100.0% | 94.6% | ▼ 5.4% |
| June | 61.0% | 88.2% | ▲ 44.7% |
| July | 77.3% | 85.2% | ▲ 10.2% |
| August | 87.5% | – | – |
| September | 83.3% | – | – |
| October | – | – | in progress |
| November | 71.4% | – | – |
| December | 68.4% | – | – |
| Year-to-date average (Jan–Jul) | 74.5% | 83.9% | ▲ 12.7% |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 2 | 2 | 0.0% |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 3 | 1 | ▼ 66.7% |
| July | 9 | 0 | ▼ 100.0% |
| August | 2 | – | – |
| September | 0 | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | 3 | – | – |
| Year to date (Jan–Jul) | 14 | 5 | ▼ 64.3% |
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 96.0% 572
- Cancelled 4.0% 24
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 |
|---|---|---|---|---|
| IND PHL Indianapolis International Airport – Philadelphia International Airport | 944 | 13.2 min | 77.3% | 92 |
| ORF ORD Norfolk International Airport – Chicago O'Hare International Airport | 1,152 | 9.1 min | 85.3% | 62 |
| ORD ORF Chicago O'Hare International Airport – Norfolk International Airport | 1,152 | 2.6 min | 88.7% | 62 |
| DCA SYR Ronald Reagan Washington National Airport – Syracuse Hancock International Airport | 480 | 0.0 min | 89.6% | 50 |
| SYR ORD Syracuse Hancock International Airport – Chicago O'Hare International Airport | 974 | 1.5 min | 95.6% | 46 |
| ORD SYR Chicago O'Hare International Airport – Syracuse Hancock International Airport | 974 | 1.6 min | 93.3% | 46 |
| ORD ROC Chicago O'Hare International Airport – Frederick Douglass Greater Rochester International Airport | 847 | 16.9 min | 67.6% | 40 |
| CVG PHL Cincinnati Northern Kentucky International Airport – Philadelphia International Airport | 814 | -5.0 min | 97.4% | 38 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 100.0% | 0 |
| November 2024 | 5 | 5 | 100.0% | 0 |
| December 2024 | 23 | 23 | 82.6% | 0 |
| January 2025 | 58 | 58 | 91.4% | 0 |
| February 2025 | 39 | 37 | 91.9% | 2 |
| March 2025 | 10 | 10 | 100.0% | 0 |
| April 2025 | 1 | 1 | 0.0% | 0 |
| May 2025 | 2 | 2 | 100.0% | 0 |
| June 2025 | 44 | 41 | 61.0% | 3 |
| July 2025 | 53 | 44 | 77.3% | 9 |
| August 2025 | 26 | 24 | 87.5% | 2 |
| September 2025 | 6 | 6 | 83.3% | 0 |
| November 2025 | 28 | 28 | 71.4% | 0 |
| December 2025 | 22 | 19 | 68.4% | 3 |
| January 2026 | 31 | 30 | 70.0% | 1 |
| February 2026 | 28 | 26 | 76.9% | 2 |
| March 2026 | 31 | 30 | 80.0% | 1 |
| April 2026 | 27 | 27 | 92.6% | 0 |
| May 2026 | 37 | 37 | 94.6% | 0 |
| June 2026 | 52 | 51 | 88.2% | 1 |
| July 2026 | 54 | 54 | 85.2% | 0 |