DL1075

DL1075 arrived on time 70.3% of the time, against 78.9% for all RDU → BOS flights, so this departure is 8.6 percentage points worse than the route as a whole. Against Delta Air Lines’ own flights on this route it is 10.7 points worse.

Source: US DOT Bureau of Transportation Statistics · 628 operations, June 2024 – July 2026 · If DL1075 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's worst arrivals run unusually far past its typical one, a bigger gap than 96% of 11,788 comparable flight numbers.

A typical arrival is 11 min early, but the worst tenth run 110 minutes worse than that.

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.

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

Share of the delay minutes US DOT attributed to each cause for DL1075 on RDU → BOS. Only delays of 15 minutes or more are attributed.

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

The aircraft flying DL1075 came in 15 or more minutes late on 17% 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 RDU just before it, using the tail number in the DOT file, 608 of 622 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

DL1075 pushes back an average of 27.8 minutes late and reaches the gate at BOS an average of 15.5 minutes late. The 12.3 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 17.9 minutes on the taxiways at RDU is about what any departure from the airport in that hour spends.

On arrival at BOS, DL1075 spends 10.9 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 2.0 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 9,913 departures from RDU scheduled in the clock hour DL1075 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 DL1075’s own. More on taxi time.

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

DL1075 is scheduled out of RDU at 4:35 PM, in the 4 PM–5 PM bank. Departures from RDU in that hour arrive on time 70.3% of the time against 79.4% across the airport’s whole day — the slot alone is worth 9.1 points worse before anything about this particular flight is considered.

The two airport figures cover every departure from RDU 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 DL1075 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. DL1075 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.

• B62184 RDU→BOS JetBlue on the same route, departs 5:35 PM, on time 60.7%
• DL1033 RDU→BOS Delta Air Lines on the same route, departs 1:10 PM, on time 74.4%
• DL1054 RDU→BOS Delta Air Lines on the same route, departs 7:00 AM, on time 93.4%
• DL1398 BOS→MSY Delta Air Lines flight out of BOS, BOS to MSY, departs 11:10 AM, on time 81.3%