DL1180

DL1180 arrived on time 88.4% of the time, against 78.5% for all PHL → ATL flights, so this departure is 9.9 percentage points better than the route as a whole. Against Delta Air Lines’ own flights on this route it is 4.1 points better.

Source: US DOT Bureau of Transportation Statistics · 694 operations, June 2024 – July 2026 · If DL1180 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.

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

Share of the delay minutes US DOT attributed to each cause for DL1180 on PHL → ATL. Only delays of 15 minutes or more are attributed.

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

DL1180 is usually the aircraft’s first flight of the day: the schedule gives it a median of 9.8 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, DL1180 pushed back an average of 10 minutes late; when it came in on time or early, an average of 1 minute late.

Each departure is matched to the flight the same aircraft flew into PHL just before it, using the tail number in the DOT file, 576 of 682 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

DL1180 pushes back an average of 11.5 minutes late and reaches the gate at ATL an average of 2.3 minutes late. The 9.2 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. It spends 16.5 minutes on the taxiways at PHL, 6.6 minutes shorter than a typical PHL departure in the same hour.

On arrival at ATL, DL1180 spends 9.8 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 ATL 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 ATL. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 32,304 departures from PHL scheduled in the clock hour DL1180 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at ATL (1,012,161 flights), not just DL1180’s own. More on taxi time.

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

DL1180 is scheduled out of PHL at 8:05 AM, in the 8 AM–9 AM bank. Departures from PHL in that hour arrive on time 84.3% of the time against 76.2% across the airport’s whole day — the slot alone is worth 8.0 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 DL1180 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. DL1180 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.

• DL1152 PHL→ATL Delta Air Lines on the same route, departs 7:00 AM, on time 85.7%
• DL1269 PHL→ATL Delta Air Lines on the same route, departs 5:30 AM, on time 91.2%
• F91003 PHL→ATL Frontier Airlines on the same route, departs 7:10 PM, on time 68.2%
• DL2402 DTW→PHL Delta Air Lines flight into PHL, DTW to PHL, departs 9:40 PM, on time 81.2%