YX4398
YX4398 (Republic Airways) is a multi-stop service on 35 routes, busiest Washington to Columbus. Of 648 departures recorded from October 2024 to July 2026, 83.5% left on time, according to the US BTS.
- On-time departures83.5%of 648 flights
- Average delay6.2 min
- July 202628▲ 300.0%vs July 2025
- Cancelled2.8%
- Legs flown under this number35
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 | 47 | 18 | ▼ 61.7% |
| February | 22 | 19 | ▼ 13.6% |
| March | 43 | 44 | ▲ 2.3% |
| April | 11 | 13 | ▲ 18.2% |
| May | 28 | 13 | ▼ 53.6% |
| June | 30 | 26 | ▼ 13.3% |
| July | 7 | 28 | ▲ 300.0% |
| August | 53 | – | – |
| September | 52 | – | – |
| October | 53 | – | in progress |
| November | 27 | – | – |
| December | 42 | – | – |
| Year to date (Jan–Jul) | 188 | 161 | ▼ 14.4% |
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 | 84.8% | 80.0% | ▼ 5.6% |
| February | 90.5% | 75.0% | ▼ 17.1% |
| March | 100.0% | 90.9% | ▼ 9.1% |
| April | 63.6% | 76.9% | ▲ 20.9% |
| May | 78.6% | 84.6% | ▲ 7.7% |
| June | 75.9% | 88.5% | ▲ 16.6% |
| July | 71.4% | 92.0% | ▲ 28.8% |
| August | 76.5% | – | – |
| September | 80.8% | – | – |
| October | 84.9% | – | in progress |
| November | 60.0% | – | – |
| December | 72.5% | – | – |
| Year-to-date average (Jan–Jul) | 80.7% | 84.0% | ▲ 4.1% |
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 | 3 | ▲ 200.0% |
| February | 1 | 3 | ▲ 200.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 3 | – |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 3 | 9 | ▲ 200.0% |
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 97.2% 630
- Cancelled 2.8% 18
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DCA CMH Ronald Reagan Washington National Airport – John Glenn Columbus International Airport | 519 | 4.3 min | 83.8% | 75 |
| CMH DCA John Glenn Columbus International Airport – Ronald Reagan Washington National Airport | 519 | 8.9 min | 79.5% | 74 |
| LGA CMH LaGuardia Airport – John Glenn Columbus International Airport | 768 | 0.8 min | 88.3% | 61 |
| RDU DCA Raleigh-Durham International Airport – Ronald Reagan Washington National Airport | 365 | 2.8 min | 86.7% | 31 |
| ORD PVD Chicago O'Hare International Airport – Rhode Island T. F. Green International Airport | 1,363 | 10.7 min | 80.7% | 31 |
| DCA RDU Ronald Reagan Washington National Airport – Raleigh-Durham International Airport | 365 | 4.1 min | 86.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 23 | 23 | 95.7% | 0 |
| December 2024 | 29 | 29 | 89.7% | 0 |
| January 2025 | 47 | 46 | 84.8% | 1 |
| February 2025 | 22 | 21 | 90.5% | 1 |
| March 2025 | 43 | 43 | 100.0% | 0 |
| April 2025 | 11 | 11 | 63.6% | 0 |
| May 2025 | 28 | 28 | 78.6% | 0 |
| June 2025 | 30 | 29 | 75.9% | 1 |
| July 2025 | 7 | 7 | 71.4% | 0 |
| August 2025 | 53 | 51 | 76.5% | 2 |
| September 2025 | 52 | 52 | 80.8% | 0 |
| October 2025 | 53 | 53 | 84.9% | 0 |
| November 2025 | 27 | 25 | 60.0% | 2 |
| December 2025 | 42 | 40 | 72.5% | 2 |
| January 2026 | 18 | 15 | 80.0% | 3 |
| February 2026 | 19 | 16 | 75.0% | 3 |
| March 2026 | 44 | 44 | 90.9% | 0 |
| April 2026 | 13 | 13 | 76.9% | 0 |
| May 2026 | 13 | 13 | 84.6% | 0 |
| June 2026 | 26 | 26 | 88.5% | 0 |
| July 2026 | 28 | 25 | 92.0% | 3 |