YX4505
YX4505 (Republic Airways) is a multi-stop service on 26 routes, busiest Washington to New York. Of 644 departures recorded from October 2024 to July 2026, 81.5% left on time, according to the US BTS.
- On-time departures81.5%of 644 flights
- Average delay11.4 min
- July 202627▼ 15.6%vs July 2025
- Cancelled4.2%
- Legs flown under this number26
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 28 | 26 | ▼ 7.1% |
| February | 40 | 24 | ▼ 40.0% |
| March | 8 | 30 | ▲ 275.0% |
| April | 54 | 30 | ▼ 44.4% |
| May | 62 | 28 | ▼ 54.8% |
| June | 44 | 26 | ▼ 40.9% |
| July | 32 | 27 | ▼ 15.6% |
| August | 10 | – | – |
| September | 28 | – | – |
| October | 33 | – | in progress |
| November | 28 | – | – |
| December | 24 | – | – |
| Year to date (Jan–Jul) | 268 | 191 | ▼ 28.7% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 100.0% | 69.6% | ▼ 30.4% |
| February | 54.3% | 40.9% | ▼ 24.6% |
| March | 50.0% | 53.9% | ▲ 7.7% |
| April | 92.6% | 83.3% | ▼ 10.0% |
| May | 91.9% | 96.4% | ▲ 4.9% |
| June | 76.2% | 88.5% | ▲ 16.1% |
| July | 96.9% | 91.7% | ▼ 5.4% |
| August | 90.0% | – | – |
| September | 85.7% | – | – |
| October | 81.8% | – | in progress |
| November | 70.8% | – | – |
| December | 63.6% | – | – |
| Year-to-date average (Jan–Jul) | 80.3% | 74.9% | ▼ 6.7% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 3 | ▲ 50.0% |
| February | 5 | 2 | ▼ 60.0% |
| March | 0 | 4 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 2 | 0 | ▼ 100.0% |
| July | 0 | 3 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 4 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 9 | 12 | ▲ 33.3% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 95.8% 617
- Cancelled 4.2% 27
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DCA LGA Ronald Reagan Washington National Airport – LaGuardia Airport | 345 | 24.5 min | 64.6% | 157 |
| BOS DCA Boston Logan International Airport – Ronald Reagan Washington National Airport | 641 | -1.6 min | 93.0% | 89 |
| DCA RDU Ronald Reagan Washington National Airport – Raleigh-Durham International Airport | 365 | 2.6 min | 93.2% | 44 |
| DTW LGA Detroit Metropolitan Wayne County Airport – LaGuardia Airport | 805 | 8.7 min | 87.9% | 33 |
| ORD DSM Chicago O'Hare International Airport – Des Moines International Airport | 480 | -0.9 min | 93.6% | 31 |
| DSM ORD Des Moines International Airport – Chicago O'Hare International Airport | 480 | -1.7 min | 93.6% | 31 |
| DCA CLE Ronald Reagan Washington National Airport – Cleveland Hopkins International Airport | 498 | -0.3 min | 93.6% | 31 |
| CLE DCA Cleveland Hopkins International Airport – Ronald Reagan Washington National Airport | 498 | 1.3 min | 87.1% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 21 | 21 | 95.2% | 0 |
| December 2024 | 21 | 21 | 85.7% | 0 |
| January 2025 | 28 | 26 | 100.0% | 2 |
| February 2025 | 40 | 35 | 54.3% | 5 |
| March 2025 | 8 | 8 | 50.0% | 0 |
| April 2025 | 54 | 54 | 92.6% | 0 |
| May 2025 | 62 | 62 | 91.9% | 0 |
| June 2025 | 44 | 42 | 76.2% | 2 |
| July 2025 | 32 | 32 | 96.9% | 0 |
| August 2025 | 10 | 10 | 90.0% | 0 |
| September 2025 | 28 | 28 | 85.7% | 0 |
| October 2025 | 33 | 33 | 81.8% | 0 |
| November 2025 | 28 | 24 | 70.8% | 4 |
| December 2025 | 24 | 22 | 63.6% | 2 |
| January 2026 | 26 | 23 | 69.6% | 3 |
| February 2026 | 24 | 22 | 40.9% | 2 |
| March 2026 | 30 | 26 | 53.9% | 4 |
| April 2026 | 30 | 30 | 83.3% | 0 |
| May 2026 | 28 | 28 | 96.4% | 0 |
| June 2026 | 26 | 26 | 88.5% | 0 |
| July 2026 | 27 | 24 | 91.7% | 3 |