Flight profile · Republic Airways
YX4477
Detroit (DTW) to New York (LGA) · scheduled 6:00 AM – 7:49 AM
How YX4477 performs
777 operations, 2023-07-05 to 2026-06-30.
YX4477 arrived on time 88.5% of the time, against 80.1% for all DTW → LGA flights — this specific departure is 8.4 percentage points better than the route as a whole. Against Republic Airways’s own flights on this route it is 5.5 points better.
Source: US DOT Bureau of Transportation Statistics · 777 operations between 2023-07-05 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| YX4477 | 88.5% | 3.09% | -10 min | 3.9% | 777 |
| Republic Airways on DTW → LGA | 83.0% | 4.35% | -10 min | 6.6% | 2,898 |
| All DTW → LGA flights | 80.1% | 2.97% | -9 min | 7.7% | 12,238 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-05 to 2026-06-30
By day of week
Does YX4477 run worse on particular days?
Tuesday is historically the most reliable day and Friday the least, a gap of 13.7 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-05 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes YX4477 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 |
|---|---|---|---|
| PWM→ORD Portland to Chicago | 2025-06-07 – 2025-08-02 | 9 | — |
| DAY→DCA Dayton to Washington | 2024-02-15 – 2024-03-04 | 13 | — |
| DCA→DAY Washington to Dayton | 2024-02-15 – 2024-03-04 | 13 | — |
| CMH→PHL Columbus to Philadelphia | 2024-01-09 – 2024-02-14 | 37 | — |
| PHL→SDF Philadelphia to Louisville | 2023-12-02 – 2023-12-02 | 1 | — |
| DCA→IND Washington to Indianapolis | 2023-11-25 – 2023-11-25 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route YX4477 currently operates. Blending them would produce an average of two different flights.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
16 min late
against a median of 10 min early
Percentiles over 777 operations. Cancelled and diverted flights have no arrival time and are counted separately rather than as very late arrivals.
Why YX4477 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for YX4477 on DTW → LGA. 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 DTW → LGA
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL2589 | Delta Air Lines | 85.1% | 9 min early | 795 |
| DL2602 | Delta Air Lines | 74.8% | 5 min early | 741 |
| DL2603 | Delta Air Lines | 74.3% | 4 min early | 871 |
| DL2604 | Delta Air Lines | 65.7% | 1 min early | 669 |
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 777 records of YX4477 operating DTW → LGA, 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.
Full methodology · Report a problem
Analysis last recomputed