YX4731
YX4731 (Republic Airways) is a multi-stop service on 18 routes, busiest Washington to Chicago. Of 247 departures recorded from November 2024 to June 2026, 77.4% left on time, according to the US BTS.
- On-time departures77.4%of 247 flights
- Average delay17.3 min
- June 20262
- Cancelled6.9%
- Legs flown under this number18
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 5 | 53 | ▲ 960.0% |
| February | – | 28 | – |
| March | 2 | 31 | ▲ 1,450.0% |
| April | 4 | 6 | ▲ 50.0% |
| May | – | – | – |
| June | – | 2 | – |
| July | – | – | – |
| August | – | – | – |
| September | 2 | – | – |
| October | – | – | in progress |
| November | 56 | – | – |
| December | 47 | – | – |
according to the US BTS · November 2024 → June 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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 81.6% | ▼ 18.4% |
| February | – | 80.8% | – |
| March | 50.0% | 64.5% | ▲ 29.0% |
| April | 75.0% | 80.0% | ▲ 6.7% |
| May | – | – | – |
| June | – | 100.0% | – |
| July | – | – | – |
| August | – | – | – |
| September | 100.0% | – | – |
| October | – | – | in progress |
| November | 76.6% | – | – |
| December | 73.9% | – | – |
according to the US BTS · November 2024 → June 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · November 2024 → June 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 4 | – |
| February | – | 2 | – |
| March | 0 | 0 | – |
| April | 0 | 1 | – |
| May | – | – | – |
| June | – | 0 | – |
| July | – | – | – |
| August | – | – | – |
| September | 0 | – | – |
| October | – | – | in progress |
| November | 9 | – | – |
| December | 1 | – | – |
according to the US BTS · November 2024 → June 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 93.1% 230
- Cancelled 6.9% 17
Share of all recorded flights in the period, all legs. · Nov 9, 2024 → Jun 27, 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 |
|---|---|---|---|---|
| DCA ORD Ronald Reagan Washington National Airport – Chicago O'Hare International Airport | 983 | 17.3 min | 77.7% | 91 |
| ORD CID Chicago O'Hare International Airport – The Eastern Iowa Airport | 315 | 19.6 min | 72.5% | 43 |
| CID ORD The Eastern Iowa Airport – Chicago O'Hare International Airport | 315 | 19.5 min | 71.1% | 43 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 3 | 3 | 100.0% | 0 |
| December 2024 | 8 | 8 | 87.5% | 0 |
| January 2025 | 5 | 5 | 100.0% | 0 |
| March 2025 | 2 | 2 | 50.0% | 0 |
| April 2025 | 4 | 4 | 75.0% | 0 |
| September 2025 | 2 | 2 | 100.0% | 0 |
| November 2025 | 56 | 47 | 76.6% | 9 |
| December 2025 | 47 | 46 | 73.9% | 1 |
| January 2026 | 53 | 49 | 81.6% | 4 |
| February 2026 | 28 | 26 | 80.8% | 2 |
| March 2026 | 31 | 31 | 64.5% | 0 |
| April 2026 | 6 | 5 | 80.0% | 1 |
| June 2026 | 2 | 2 | 100.0% | 0 |