YX4340
YX4340 (Republic Airways) is a multi-stop service on 29 routes, busiest Indianapolis to Chicago. Of 492 departures recorded from October 2024 to July 2026, 83.2% left on time, according to the US BTS.
- On-time departures83.2%of 492 flights
- Average delay9.3 min
- July 202644▲ 4,300.0%vs July 2025
- Cancelled3.5%
- Legs flown under this number29
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 | 27 | ▼ 10.0% |
| February | 14 | 28 | ▲ 100.0% |
| March | 27 | 27 | 0.0% |
| April | 9 | 8 | ▼ 11.1% |
| May | 29 | 12 | ▼ 58.6% |
| June | 30 | 12 | ▼ 60.0% |
| July | 1 | 44 | ▲ 4,300.0% |
| August | 26 | – | – |
| September | 30 | – | – |
| October | 6 | – | in progress |
| November | 29 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 140 | 158 | ▲ 12.9% |
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 | 93.1% | 69.2% | ▼ 25.6% |
| February | 92.9% | 76.9% | ▼ 17.2% |
| March | 88.5% | 73.1% | ▼ 17.4% |
| April | 66.7% | 100.0% | ▲ 50.0% |
| May | 93.1% | 58.3% | ▼ 37.3% |
| June | 90.0% | 66.7% | ▼ 25.9% |
| July | 100.0% | 65.9% | ▼ 34.1% |
| August | 100.0% | – | – |
| September | 79.3% | – | – |
| October | 100.0% | – | in progress |
| November | 96.3% | – | – |
| December | 71.4% | – | – |
| Year-to-date average (Jan–Jul) | 89.2% | 72.9% | ▼ 18.3% |
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 | 1 | 1 | 0.0% |
| February | 0 | 2 | – |
| March | 1 | 1 | 0.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 6 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 2 | 10 | ▲ 400.0% |
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 96.5% 475
- Cancelled 3.5% 17
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| IND ORD Indianapolis International Airport – Chicago O'Hare International Airport | 286 | -0.2 min | 90.7% | 109 |
| BOS PHL Boston Logan International Airport – Philadelphia International Airport | 450 | 7.9 min | 81.1% | 98 |
| DCA IND Ronald Reagan Washington National Airport – Indianapolis International Airport | 802 | 3.3 min | 86.5% | 93 |
| ORD PVD Chicago O'Hare International Airport – Rhode Island T. F. Green International Airport | 1,363 | -1.5 min | 93.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 21 | 21 | 95.2% | 0 |
| November 2024 | 25 | 25 | 96.0% | 0 |
| December 2024 | 28 | 28 | 78.6% | 0 |
| January 2025 | 30 | 29 | 93.1% | 1 |
| February 2025 | 14 | 14 | 92.9% | 0 |
| March 2025 | 27 | 26 | 88.5% | 1 |
| April 2025 | 9 | 9 | 66.7% | 0 |
| May 2025 | 29 | 29 | 93.1% | 0 |
| June 2025 | 30 | 30 | 90.0% | 0 |
| July 2025 | 1 | 1 | 100.0% | 0 |
| August 2025 | 26 | 25 | 100.0% | 1 |
| September 2025 | 30 | 29 | 79.3% | 1 |
| October 2025 | 6 | 6 | 100.0% | 0 |
| November 2025 | 29 | 27 | 96.3% | 2 |
| December 2025 | 29 | 28 | 71.4% | 1 |
| January 2026 | 27 | 26 | 69.2% | 1 |
| February 2026 | 28 | 26 | 76.9% | 2 |
| March 2026 | 27 | 26 | 73.1% | 1 |
| April 2026 | 8 | 8 | 100.0% | 0 |
| May 2026 | 12 | 12 | 58.3% | 0 |
| June 2026 | 12 | 6 | 66.7% | 6 |
| July 2026 | 44 | 44 | 65.9% | 0 |