Flight profile · Republic Airways
YX4712
Nashville (BNA) to New York (JFK) · scheduled 8:55 AM – 2:30 PM
How YX4712 performs
929 operations, July 2023 – July 2026.
YX4712 arrived on time 86.1% of the time, against 78.9% for all BNA → JFK flights, so this departure is 7.2 percentage points better than the route as a whole. Against Republic Airways’ own flights on this route it is 4.2 points better.
Source: US DOT Bureau of Transportation Statistics · 929 operations, July 2023 – July 2026 · If YX4712 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where YX4712 is right now
A live reading, only if you ask for it. It is not part of the reliability record above.
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| YX4712 | 86.1% | 1.29% | -8 min | 4.5% | 929 |
| Republic Airways on BNA → JFK | 81.9% | 2.66% | -6 min | 7.0% | 2,748 |
| All BNA → JFK flights | 78.9% | 3.21% | -6 min | 8.8% | 5,725 |
YX4712 has cancelled 1.29% of its scheduled departures (12 of 929), against 3.21% for all BNA → JFK flights — this specific departure cancels 1.9 percentage points less often than the route as a whole. Different flight numbers on the same route can carry different aircraft, crews and schedules, so this is a fact about YX4712 specifically, not about the route it flies.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
Why YX4712 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
crew, maintenance, boarding and fueling, all within the carrier’s control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for YX4712 on BNA → JFK. Only delays of 15 minutes or more are attributed.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Does a late aircraft delay this flight?
How often the plane that flies YX4712 comes in late, and what that does to the departure.
The aircraft flying YX4712 came in 15 or more minutes late on 10% of the departures where its previous flight is known. There are not enough departures in both groups to say how the flight left after a late one and after an on-time one.
Each departure is matched to the flight the same aircraft flew into BNA just before it, using the tail number in the DOT file, 873 of 917 departures in all. A departure is left out when that flight is unknown, was cancelled or diverted, or the aircraft had sat for more than 12 hours. A flight the airline cancelled never left and is not in the count, and one flown by a substitute aircraft is matched to the aircraft that flew it, not to the one first planned.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late |
|---|---|
| YX4712 | 10% |
| Network, same turn | 18% |
The schedule leaves little slack between the inbound landing and this departure, so a late arrival has almost nowhere to go but into the departure.
The network row is every flight with a scheduled turn of 30 to 44 minutes. How often YX4712’s aircraft landed 15 or more minutes late is lower than the network’s. There are not enough departures in both groups to compare how it left.
More: Which Flight Numbers Pay for a Late Aircraft lists the flight numbers that pass a late aircraft on.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
From pushback to gate
When it leaves BNA late, does that still matter by the time it reaches JFK?
YX4712 pushes back an average of 4.4 minutes late and reaches the gate at JFK an average of 0.0 minutes early. The 4.4 minutes between those two figures are slack the published schedule already carries, which is why a late pushback on this flight does not reliably become a late arrival. Its 17.0 minutes on the taxiways at BNA is about what any departure from the airport in that hour spends.
On arrival at JFK, YX4712 spends 11.7 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is about what any arrival at JFK spends on the ground before reaching the gate.
Departure delay is averaged over every pushback and arrival delay over every completed arrival, so the two counts differ by the flights that never reached JFK. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 19,911 departures from BNA scheduled in the clock hour YX4712 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at JFK (351,546 flights), not just YX4712’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
The hour it leaves BNA
Part of any flight’s record belongs to the clock rather than to the flight. YX4712 has one departure time, so this is what that time is worth.
On-time arrival rate. 19,911 departures from BNA are scheduled in the 8 AM–9 AM hour over the period, against 319,645 across the whole day.
YX4712 is scheduled out of BNA at 8:55 AM, in the 8 AM–9 AM bank. Departures from BNA in that hour arrive on time 88.9% of the time against 78.3% across the airport’s whole day — the slot alone is worth 10.6 points better before anything about this particular flight is considered.
The two airport figures cover every departure from BNA to every destination, so they describe the slot rather than this journey — the like-for-like comparison against the route is above. Hours are scheduled local, and a number whose schedule moved between banks inside the period has no single hour and is not described here at all. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Hours below 120 departures are not scored.
By day of week
Does YX4712 run worse on particular days?
Tuesday is historically the most reliable day and Friday the least, a gap of 10.1 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Days with fewer than 120 operations are not scored.
Other routes YX4712 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 |
|---|---|---|---|
| BOS→CMH Boston to Columbus | April 7, 2026 – May 20, 2026 | 42 | — |
| CMH→BOS Columbus to Boston | April 7, 2026 – May 20, 2026 | 38 | — |
| ORD→LIT Chicago to Little Rock | November 26, 2023 | 1 | — |
| BOS→ORD Boston to Chicago | November 21, 2023 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route YX4712 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.
25 min late
against a median of 8 min early
Percentiles over 929 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Data and methodology
Calculated by FlyerIntel from 929 records of YX4712 operating BNA → 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.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
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