DL320

DL320 arrived on time 75.3% of the time, against 78.7% for all LAX → ATL flights, so this departure is 3.4 percentage points worse than the route as a whole. Against Delta Air Lines’ own flights on this route it is 5.8 points worse.

Source: US DOT Bureau of Transportation Statistics · 668 operations, July 2023 – July 2026 · If DL320 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 · July 2023 – July 2026

Share of the delay minutes US DOT attributed to each cause for DL320 on LAX → ATL. Only delays of 15 minutes or more are attributed.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026

When the aircraft came in 15 or more minutes late, DL320 pushed back an average of 39 minutes late; when it came in on time or early, an average of 5 minutes late.

Each departure is matched to the flight the same aircraft flew into LAX just before it, using the tail number in the DOT file, 626 of 661 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 July 2023 – July 2026

DL320 pushes back an average of 14.7 minutes late and reaches the gate at ATL an average of 5.4 minutes late. The 9.3 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 20.1 minutes on the taxiways at LAX is about what any departure from the airport in that hour spends.

On arrival at ATL, DL320 spends 7.6 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 shorter than a typical ATL arrival (9.6 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 ATL. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 22,331 departures from LAX scheduled in the clock hour DL320 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 DL320’s own. More on taxi time.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026

DL320 is scheduled out of LAX at 11:59 PM, in the 11 PM–12 AM bank. Departures from LAX in that hour arrive on time 80.8% of the time against 81.4% across the airport’s whole day, so the hour DL320 leaves in is an ordinary one for LAX and explains nothing about its record either way.

The two airport figures cover every departure from LAX 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.

Because the same number has served different journeys, the statistics above describe only the route DL320 currently operates. Blending them would produce an average of two different flights.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026

Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. DL320 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.

• F93216 LAX→ATL Frontier Airlines on the same route, departs 10:35 PM, on time 45.9%
• DL390 LAX→ATL Delta Air Lines on the same route, departs 6:00 AM, on time 90.5%
• DL471 LAX→ATL Delta Air Lines on the same route, departs 5:00 PM, on time 84.5%
• DL782 LAX→ATL Delta Air Lines on the same route, departs 8:45 AM, on time 81.3%