YX4431
YX4431 (Republic Airways) is a multi-stop service on 28 routes, busiest Washington to West Palm Beach. Of 663 departures recorded from October 2024 to July 2026, 77.1% left on time, according to the US BTS.
- On-time departures77.1%of 663 flights
- Average delay14.0 min
- July 202654▲ 980.0%vs July 2025
- Cancelled3.8%
- Legs flown under this number28
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 | 62 | 54 | ▼ 12.9% |
| February | 56 | 48 | ▼ 14.3% |
| March | 10 | 54 | ▲ 440.0% |
| April | 8 | 12 | ▲ 50.0% |
| May | 6 | 25 | ▲ 316.7% |
| June | 26 | 60 | ▲ 130.8% |
| July | 5 | 54 | ▲ 980.0% |
| August | 1 | – | – |
| September | – | – | – |
| October | 26 | – | in progress |
| November | 26 | – | – |
| December | 39 | – | – |
| Year to date (Jan–Jul) | 173 | 307 | ▲ 77.5% |
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 | 76.7% | 71.2% | ▼ 7.2% |
| February | 78.6% | 77.1% | ▼ 1.9% |
| March | 80.0% | 69.6% | ▼ 13.0% |
| April | 100.0% | 70.0% | ▼ 30.0% |
| May | 66.7% | 84.0% | ▲ 26.0% |
| June | 55.0% | 80.0% | ▲ 45.5% |
| July | 75.0% | 77.4% | ▲ 3.1% |
| August | 100.0% | – | – |
| September | – | – | – |
| October | 80.8% | – | in progress |
| November | 58.3% | – | – |
| December | 84.2% | – | – |
| Year-to-date average (Jan–Jul) | 76.0% | 75.6% | ▼ 0.5% |
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 | 2 | 2 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 8 | – |
| April | 0 | 2 | – |
| May | 0 | 0 | – |
| June | 6 | 0 | ▼ 100.0% |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 9 | 13 | ▲ 44.4% |
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 96.2% 638
- Cancelled 3.8% 25
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 |
|---|---|---|---|---|
| DJT DCA President Donald J. Trump International Airport – Ronald Reagan Washington National Airport | 1,383 | 10.2 min | 70.2% | 68 |
| DCA DJT Ronald Reagan Washington National Airport – President Donald J. Trump International Airport | 1,383 | 1.9 min | 89.7% | 68 |
| ORD IAH Chicago O'Hare International Airport – George Bush Intercontinental Airport | 1,491 | 19.5 min | 70.0% | 61 |
| IAH ORD George Bush Intercontinental Airport – Chicago O'Hare International Airport | 1,491 | 39.2 min | 76.3% | 60 |
| XNA ORD Northwest Arkansas National Airport – Chicago O'Hare International Airport | 840 | 14.9 min | 73.7% | 58 |
| ORD XNA Chicago O'Hare International Airport – Northwest Arkansas National Airport | 840 | 1.5 min | 87.7% | 58 |
| ORD JAX Chicago O'Hare International Airport – Jacksonville International Airport | 1,393 | 16.2 min | 68.3% | 45 |
| JAX ORD Jacksonville International Airport – Chicago O'Hare International Airport | 1,393 | 16.8 min | 66.7% | 45 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 94.7% | 0 |
| November 2024 | 22 | 22 | 86.4% | 0 |
| December 2024 | 50 | 50 | 80.0% | 0 |
| January 2025 | 62 | 60 | 76.7% | 2 |
| February 2025 | 56 | 56 | 78.6% | 0 |
| March 2025 | 10 | 10 | 80.0% | 0 |
| April 2025 | 8 | 8 | 100.0% | 0 |
| May 2025 | 6 | 6 | 66.7% | 0 |
| June 2025 | 26 | 20 | 55.0% | 6 |
| July 2025 | 5 | 4 | 75.0% | 1 |
| August 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 26 | 26 | 80.8% | 0 |
| November 2025 | 26 | 24 | 58.3% | 2 |
| December 2025 | 39 | 38 | 84.2% | 1 |
| January 2026 | 54 | 52 | 71.2% | 2 |
| February 2026 | 48 | 48 | 77.1% | 0 |
| March 2026 | 54 | 46 | 69.6% | 8 |
| April 2026 | 12 | 10 | 70.0% | 2 |
| May 2026 | 25 | 25 | 84.0% | 0 |
| June 2026 | 60 | 60 | 80.0% | 0 |
| July 2026 | 54 | 53 | 77.4% | 1 |