YX4357
YX4357 (Republic Airways) is a multi-stop service on 30 routes, busiest Indianapolis to New York. Of 652 departures recorded from November 2024 to July 2026, 76.5% left on time, according to the US BTS.
- On-time departures76.5%of 652 flights
- Average delay11.2 min
- July 202631▲ 0.0%vs July 2025
- Cancelled3.4%
- Legs flown under this number30
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 | 30 | 18 | ▼ 40.0% |
| February | 27 | 30 | ▲ 11.1% |
| March | 31 | 54 | ▲ 74.2% |
| April | 49 | 58 | ▲ 18.4% |
| May | 8 | 50 | ▲ 525.0% |
| June | 22 | 30 | ▲ 36.4% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 26 | – | – |
| October | 5 | – | in progress |
| November | 32 | – | – |
| December | 34 | – | – |
| Year to date (Jan–Jul) | 198 | 271 | ▲ 36.9% |
according to the US BTS · November 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 | 90.0% | 88.9% | ▼ 1.2% |
| February | 88.0% | 38.5% | ▼ 56.3% |
| March | 100.0% | 57.1% | ▼ 42.9% |
| April | 59.2% | 75.0% | ▲ 26.7% |
| May | 75.0% | 82.0% | ▲ 9.3% |
| June | 90.9% | 89.7% | ▼ 1.4% |
| July | 89.7% | 80.0% | ▼ 10.8% |
| August | 96.8% | – | – |
| September | 80.0% | – | – |
| October | 100.0% | – | in progress |
| November | 60.7% | – | – |
| December | 47.1% | – | – |
| Year-to-date average (Jan–Jul) | 84.7% | 73.0% | ▼ 13.8% |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
according to the US BTS · November 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 2 | 4 | ▲ 100.0% |
| March | 0 | 5 | – |
| April | 0 | 2 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 2 | 1 | ▼ 50.0% |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 4 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 13 | ▲ 225.0% |
according to the US BTS · November 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 96.6% 630
- Cancelled 3.4% 22
Share of all recorded flights in the period, all legs. · Nov 5, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| IND LGA Indianapolis International Airport – LaGuardia Airport | 1,060 | 5.7 min | 87.6% | 124 |
| DTW DCA Detroit Metropolitan Wayne County Airport – Ronald Reagan Washington National Airport | 651 | 30.1 min | 47.5% | 46 |
| DCA DTW Ronald Reagan Washington National Airport – Detroit Metropolitan Wayne County Airport | 651 | 30.0 min | 51.2% | 46 |
| ORD BDL Chicago O'Hare International Airport – Bradley International Airport | 1,257 | 5.6 min | 88.6% | 44 |
| BDL ORD Bradley International Airport – Chicago O'Hare International Airport | 1,257 | 16.3 min | 72.7% | 44 |
| DCA BOS Ronald Reagan Washington National Airport – Boston Logan International Airport | 641 | 5.4 min | 82.9% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 25 | 25 | 88.0% | 0 |
| December 2024 | 30 | 30 | 80.0% | 0 |
| January 2025 | 30 | 30 | 90.0% | 0 |
| February 2025 | 27 | 25 | 88.0% | 2 |
| March 2025 | 31 | 31 | 100.0% | 0 |
| April 2025 | 49 | 49 | 59.2% | 0 |
| May 2025 | 8 | 8 | 75.0% | 0 |
| June 2025 | 22 | 22 | 90.9% | 0 |
| July 2025 | 31 | 29 | 89.7% | 2 |
| August 2025 | 31 | 31 | 96.8% | 0 |
| September 2025 | 26 | 25 | 80.0% | 1 |
| October 2025 | 5 | 5 | 100.0% | 0 |
| November 2025 | 32 | 28 | 60.7% | 4 |
| December 2025 | 34 | 34 | 47.1% | 0 |
| January 2026 | 18 | 18 | 88.9% | 0 |
| February 2026 | 30 | 26 | 38.5% | 4 |
| March 2026 | 54 | 49 | 57.1% | 5 |
| April 2026 | 58 | 56 | 75.0% | 2 |
| May 2026 | 50 | 50 | 82.0% | 0 |
| June 2026 | 30 | 29 | 89.7% | 1 |
| July 2026 | 31 | 30 | 80.0% | 1 |