YX4739
YX4739 (Republic Airways) is a multi-stop service on 12 routes, busiest Indianapolis to Chicago. Of 491 departures recorded from November 2024 to July 2026, 85.3% left on time, according to the US BTS.
- On-time departures85.3%of 491 flights
- Average delay10.5 min
- July 20268▼ 78.9%vs July 2025
- Cancelled3.3%
- Legs flown under this number12
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 | 2 | 30 | ▲ 1,400.0% |
| February | 16 | 28 | ▲ 75.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 20 | ▼ 35.5% |
| June | 32 | – | – |
| July | 38 | 8 | ▼ 78.9% |
| August | 48 | – | – |
| September | 4 | – | – |
| October | 26 | – | in progress |
| November | 37 | – | – |
| December | 29 | – | – |
according to the US BTS · November 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 | 100.0% | 75.0% | ▼ 25.0% |
| February | 75.0% | 89.3% | ▲ 19.1% |
| March | 90.3% | 80.0% | ▼ 11.4% |
| April | 93.3% | 90.0% | ▼ 3.6% |
| May | 96.8% | 95.0% | ▼ 1.8% |
| June | 86.2% | – | – |
| July | 65.6% | 100.0% | ▲ 52.4% |
| August | 85.1% | – | – |
| September | 100.0% | – | – |
| October | 92.3% | – | in progress |
| November | 82.9% | – | – |
| December | 75.0% | – | – |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · November 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 | 2 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 3 | – | – |
| July | 6 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 1 | – | – |
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 96.7% 475
- Cancelled 3.3% 16
Share of all recorded flights in the period, all legs. · Nov 9, 2024 → Jul 26, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| IND ORD Indianapolis International Airport – Chicago O'Hare International Airport | 286 | 6.9 min | 87.1% | 307 |
| MSP DCA Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Ronald Reagan Washington National Airport | 1,495 | 56.6 min | 69.0% | 35 |
| DCA MSP Ronald Reagan Washington National Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 1,495 | 11.5 min | 81.3% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 3 | 3 | 100.0% | 0 |
| December 2024 | 17 | 17 | 82.4% | 0 |
| January 2025 | 2 | 2 | 100.0% | 0 |
| February 2025 | 16 | 16 | 75.0% | 0 |
| March 2025 | 31 | 31 | 90.3% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 31 | 31 | 96.8% | 0 |
| June 2025 | 32 | 29 | 86.2% | 3 |
| July 2025 | 38 | 32 | 65.6% | 6 |
| August 2025 | 48 | 47 | 85.1% | 1 |
| September 2025 | 4 | 4 | 100.0% | 0 |
| October 2025 | 26 | 26 | 92.3% | 0 |
| November 2025 | 37 | 35 | 82.9% | 2 |
| December 2025 | 29 | 28 | 75.0% | 1 |
| January 2026 | 30 | 28 | 75.0% | 2 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 31 | 30 | 80.0% | 1 |
| April 2026 | 30 | 30 | 90.0% | 0 |
| May 2026 | 20 | 20 | 95.0% | 0 |
| July 2026 | 8 | 8 | 100.0% | 0 |