Flight profile · Republic Airways
YX4805
Raleigh–Durham (RDU) to New York (JFK) · scheduled 6:00 AM – 7:19 AM
How YX4805 performs
708 operations, 2023-07-01 to 2026-06-30.
YX4805 arrived on time 92.4% of the time, against 77.8% for all RDU → JFK flights — this specific departure is 14.6 percentage points better than the route as a whole. Against Republic Airways’s own flights on this route it is 12.0 points better.
Source: US DOT Bureau of Transportation Statistics · 708 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| YX4805 | 92.4% | 1.84% | -12 min | 2.3% | 708 |
| Republic Airways on RDU → JFK | 80.4% | 3.28% | -8 min | 7.2% | 4,243 |
| All RDU → JFK flights | 77.8% | 3.36% | -8 min | 9.1% | 9,666 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
Other routes YX4805 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| ORD→DSM Chicago to Des Moines | 2024-12-23 – 2026-04-05 | 48 | — |
| PHL→BUF Philadelphia to Buffalo | 2026-02-12 – 2026-03-07 | 24 | — |
| MSY→PHL New Orleans to Philadelphia | 2026-01-10 – 2026-02-07 | 5 | — |
| PHL→MSY Philadelphia to New Orleans | 2026-01-10 – 2026-02-07 | 5 | — |
| LGA→BOS New York to Boston | 2025-12-22 – 2025-12-22 | 1 | — |
| ORD→PIT Chicago to Pittsburgh | 2025-11-04 – 2025-12-17 | 15 | — |
| CMH→ORD Columbus to Chicago | 2025-11-25 – 2025-12-02 | 2 | — |
| ORD→CMH Chicago to Columbus | 2025-11-25 – 2025-12-02 | 2 | — |
| DCA→PIT Washington to Pittsburgh | 2025-11-23 – 2025-11-30 | 2 | — |
| PIT→DCA Pittsburgh to Washington | 2025-11-23 – 2025-11-30 | 2 | — |
| MSN→ORD Madison to Chicago | 2025-11-20 – 2025-11-26 | 2 | — |
| ORD→MSN Chicago to Madison | 2025-11-20 – 2025-11-26 | 2 | — |
| DCA→MKE Washington to Milwaukee | 2025-11-07 – 2025-11-14 | 2 | — |
| CHS→MIA Charleston to Miami | 2024-09-07 – 2024-10-05 | 5 | — |
| MIA→CHS Miami to Charleston | 2024-09-07 – 2024-10-05 | 5 | — |
| MEM→DCA Memphis to Washington | 2024-03-06 – 2024-04-03 | 25 | — |
| IND→CLT Indianapolis to Charlotte | 2023-12-22 – 2023-12-22 | 1 | — |
| ORD→RDU Chicago to Raleigh–Durham | 2023-12-05 – 2023-12-19 | 13 | — |
| ORD→MSP Chicago to Minneapolis | 2023-12-07 – 2023-12-14 | 2 | — |
| ORD→BHM Chicago to Birmingham | 2023-11-25 – 2023-11-25 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route YX4805 currently operates. Blending them would produce an average of two different flights.
Why YX4805 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for YX4805 on RDU → JFK. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on RDU → JFK
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| B62786 | JetBlue | 75.1% | 6 min early | 736 |
| YX4765 | Republic Airways | 73.3% | 2 min early | 869 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 708 records of YX4805 operating RDU → JFK, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.