UA373

UA373 arrived on time 90.4% of the time, against 81.5% for all HNL → SFO flights, so this departure is 8.9 percentage points better than the route as a whole. Against United Airlines’ own flights on this route it is 3.0 points better.

UA373’s scheduled departure has moved during the period FlyerIntel has on file: it typically left around 7:00 AM earlier on, and around 8:00 AM more recently — a 60-minute shift, not the few minutes of day-to-day rounding every published schedule carries. Confirm the current departure time before booking around an older listing.

Source: US DOT Bureau of Transportation Statistics · 601 operations, October 2024 – July 2026 · If UA373 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 · October 2024 – July 2026

Share of the delay minutes US DOT attributed to each cause for UA373 on HNL → SFO. Only delays of 15 minutes or more are attributed.

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

UA373 is usually the aircraft’s first flight of the day: the schedule gives it a median of 11.2 hours on the ground at HNL, so its “inbound” is mostly the aircraft’s arrival the evening before.

The aircraft flying UA373 came in 15 or more minutes late on 22% 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 HNL just before it, using the tail number in the DOT file, 294 of 596 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 October 2024 – July 2026

UA373 pushes back an average of 9.4 minutes late and reaches the gate at SFO an average of 0.9 minutes late. The 8.4 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. It spends 18.8 minutes on the taxiways at HNL, 3.5 minutes longer than a typical HNL departure in the same hour.

On arrival at SFO, UA373 spends 7.0 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 SFO 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 SFO. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 10,197 departures from HNL scheduled in the clock hour UA373 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at SFO (436,060 flights), not just UA373’s own. More on taxi time.

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

UA373 is scheduled out of HNL at 7:00 AM, in the 7 AM–8 AM bank. Departures from HNL in that hour arrive on time 91.6% of the time against 85.3% across the airport’s whole day — the slot alone is worth 6.3 points better before anything about this particular flight is considered.

The two airport figures cover every departure from HNL 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 · October 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 UA373 currently operates. Blending them would produce an average of two different flights.

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

Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. UA373 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.

• UA1947 HNL→SFO United Airlines on the same route, departs 11:30 PM, on time 85.4%
• UA2380 SFO→HNL Return trip, SFO to HNL, departs 11:10 AM, on time 75.9%
• UA300 SFO→HNL Return trip, SFO to HNL, departs 1:40 PM, on time 81.4%