YX4809
YX4809 (Republic Airways) is a multi-stop service on 28 routes, busiest Washington to Boston. Of 373 departures recorded from October 2024 to July 2026, 82.6% left on time, according to the US BTS.
- On-time departures82.6%of 373 flights
- Average delay8.0 min
- July 202625
- Cancelled1.3%
- 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 | 1 | 54 | ▲ 5,300.0% |
| February | 16 | 20 | ▲ 25.0% |
| March | 11 | 3 | ▼ 72.7% |
| April | 30 | 29 | ▼ 3.3% |
| May | 31 | 32 | ▲ 3.2% |
| June | 5 | 4 | ▼ 20.0% |
| July | – | 25 | – |
| August | 8 | – | – |
| September | 8 | – | – |
| October | 2 | – | in progress |
| November | 4 | – | – |
| December | 35 | – | – |
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 | 100.0% | 80.0% | ▼ 20.0% |
| February | 81.3% | 55.0% | ▼ 32.3% |
| March | 100.0% | 100.0% | 0.0% |
| April | 90.0% | 75.9% | ▼ 15.7% |
| May | 83.9% | 81.3% | ▼ 3.1% |
| June | 100.0% | 100.0% | 0.0% |
| July | – | 84.0% | – |
| August | 75.0% | – | – |
| September | 87.5% | – | – |
| October | 100.0% | – | in progress |
| November | 100.0% | – | – |
| December | 73.5% | – | – |
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 | 0 | 4 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
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 98.7% 368
- Cancelled 1.3% 5
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DCA BOS Ronald Reagan Washington National Airport – Boston Logan International Airport | 641 | 5.7 min | 88.1% | 109 |
| TUL DCA Tulsa International Airport – Ronald Reagan Washington National Airport | 1,685 | 8.0 min | 79.3% | 32 |
| DCA TUL Ronald Reagan Washington National Airport – Tulsa International Airport | 1,685 | 16.5 min | 61.3% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 92.5% | 0 |
| November 2024 | 9 | 9 | 88.9% | 0 |
| December 2024 | 6 | 6 | 83.3% | 0 |
| January 2025 | 1 | 1 | 100.0% | 0 |
| February 2025 | 16 | 16 | 81.3% | 0 |
| March 2025 | 11 | 11 | 100.0% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 31 | 31 | 83.9% | 0 |
| June 2025 | 5 | 5 | 100.0% | 0 |
| August 2025 | 8 | 8 | 75.0% | 0 |
| September 2025 | 8 | 8 | 87.5% | 0 |
| October 2025 | 2 | 2 | 100.0% | 0 |
| November 2025 | 4 | 4 | 100.0% | 0 |
| December 2025 | 35 | 34 | 73.5% | 1 |
| January 2026 | 54 | 50 | 80.0% | 4 |
| February 2026 | 20 | 20 | 55.0% | 0 |
| March 2026 | 3 | 3 | 100.0% | 0 |
| April 2026 | 29 | 29 | 75.9% | 0 |
| May 2026 | 32 | 32 | 81.3% | 0 |
| June 2026 | 4 | 4 | 100.0% | 0 |
| July 2026 | 25 | 25 | 84.0% | 0 |