YX5740

YX5740 arrived on time 92.5% of the time, against 76.1% for all PHL → BOS flights, so this departure is 16.4 percentage points better than the route as a whole. Against Republic Airways’ own flights on this route it is 10.6 points better.

Source: US DOT Bureau of Transportation Statistics · 757 operations, June 2024 – July 2026 · If YX5740 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.

This flight runs unusually far ahead of the PHL → BOS route as a whole, better than 99% of 11,788 comparable flight numbers.

92.5% on time for this specific departure, against 76.1% for every PHL → BOS flight.

Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026 · The one thing about this specific departure that ranks most extreme against every other published flight number, out of everything FlyerIntel checks — shown only when something clears a real statistical bar, not for every flight.

YX5740 has cancelled 1.19% of its scheduled departures (9 of 757), against 2.28% for all PHL → BOS flights — this specific departure cancels 1.1 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 YX5740 specifically, not about the route it flies.

Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026

Share of the delay minutes US DOT attributed to each cause for YX5740 on PHL → BOS. Only delays of 15 minutes or more are attributed.

Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026

YX5740 is usually the aircraft’s first flight of the day: the schedule gives it a median of 8.6 hours on the ground at PHL, so its “inbound” is mostly the aircraft’s arrival the evening before.

When the aircraft came in 15 or more minutes late, YX5740 pushed back an average of 3 minutes early; when it came in on time or early, an average of 6 minutes early.

Each departure is matched to the flight the same aircraft flew into PHL just before it, using the tail number in the DOT file, 672 of 748 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.

Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026

YX5740 pushes back an average of 0.5 minutes early and reaches the gate at BOS an average of 6.5 minutes early. The 6.0 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 18.2 minutes on the taxiways at PHL is about what any departure from the airport in that hour spends.

On arrival at BOS, YX5740 spends 16.5 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 7.6 minutes longer than a typical BOS arrival (9.0 min).

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 BOS. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 19,016 departures from PHL scheduled in the clock hour YX5740 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at BOS (440,886 flights), not just YX5740’s own. More on taxi time.

Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026

YX5740 is scheduled out of PHL at 6:00 AM, in the 6 AM–7 AM bank. Departures from PHL in that hour arrive on time 87.0% of the time against 76.2% across the airport’s whole day — the slot alone is worth 10.8 points better before anything about this particular flight is considered.

The two airport figures cover every departure from PHL 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 · June 2024 – July 2026 · Hours below 120 departures are not scored.

Because the same number has served different journeys, the statistics above describe only the route YX5740 currently operates. Blending them would produce an average of two different flights.

Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026

Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. YX5740 is placed in the same ordering rather than left out of it; the rows around it are the most punctual departures on the route, not all of them, so this is a comparison and not a rank. Schedules change; confirm the departure still operates before booking around this.

• B61160 PHL→BOS JetBlue on the same route, departs 10:15 AM, on time 83.8%
• AA1874 PHL→BOS American Airlines on the same route, departs 9:15 PM, on time 71.9%
• AA1776 PHL→BOS American Airlines on the same route, departs 5:55 PM, on time 68.7%