UA1668

UA1668 arrived on time 79.5% of the time, against 76.4% for all AUS → SFO flights, so this departure is 3.1 percentage points better than the route as a whole.

Source: US DOT Bureau of Transportation Statistics · 885 operations, July 2023 – July 2026 · If UA1668 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 UA1668 on AUS → SFO. Only delays of 15 minutes or more are attributed.

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

UA1668 is usually the aircraft’s first flight of the day: the schedule gives it a median of 7.7 hours on the ground at AUS, so its “inbound” is mostly the aircraft’s arrival the evening before.

When the aircraft came in 15 or more minutes late, UA1668 pushed back an average of 15 minutes late; when it came in on time or early, an average of 10 minutes late.

Each departure is matched to the flight the same aircraft flew into AUS just before it, using the tail number in the DOT file, 751 of 881 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

UA1668 pushes back an average of 12.0 minutes late and reaches the gate at SFO an average of 4.6 minutes late. The 7.4 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 17.7 minutes on the taxiways at AUS, 2.6 minutes longer than a typical AUS departure in the same hour.

On arrival at SFO, UA1668 spends 8.4 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 13,588 departures from AUS scheduled in the clock hour UA1668 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 UA1668’s own. More on taxi time.

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

UA1668 is scheduled out of AUS at 9:30 AM, in the 9 AM–10 AM bank. Departures from AUS in that hour arrive on time 86.5% of the time against 78.0% across the airport’s whole day — the slot alone is worth 8.5 points better before anything about this particular flight is considered.

The two airport figures cover every departure from AUS 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.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Days with fewer than 120 operations are not scored.

Because the same number has served different journeys, the statistics above describe only the route UA1668 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. UA1668 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.

• UA1116 SFO→AUS Return trip, SFO to AUS, departs 12:55 PM, on time 82.4%
• UA2196 AUS→IAH United Airlines flight out of AUS, AUS to IAH, departs 9:35 AM, on time 82.4%
• UA2664 SFO→BWI United Airlines flight out of SFO, SFO to BWI, departs 9:10 AM, on time 88.9%
• UA500 IND→SFO United Airlines flight into SFO, IND to SFO, departs 6:00 AM, on time 85.1%