UA1829

UA1829 arrived on time 71.1% of the time, against 76.8% for all DEN → IAH flights, so this departure is 5.7 percentage points worse than the route as a whole. Against United Airlines’ own flights on this route it is 6.1 points worse.

Source: US DOT Bureau of Transportation Statistics · 651 operations, June 2024 – July 2026 · If UA1829 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 UA1829 on DEN → IAH. 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 UA1829 came in 15 or more minutes late on 11% 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 DEN just before it, using the tail number in the DOT file, 606 of 648 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

On arrival at IAH, UA1829 spends 13.2 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 2.5 minutes longer than a typical IAH arrival (10.7 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 IAH. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 83,741 departures from DEN scheduled in the clock hour UA1829 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at IAH (359,471 flights), not just UA1829’s own. More on taxi time.

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

UA1829 is scheduled out of DEN at 1:25 PM, in the 1 PM–2 PM bank. Departures from DEN in that hour arrive on time 79.4% of the time against 76.0% across the airport’s whole day — the slot alone is worth 3.4 points better before anything about this particular flight is considered.

The two airport figures cover every departure from DEN 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 UA1829 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. UA1829 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.

• UA489 DEN→IAH United Airlines on the same route, departs 3:40 PM, on time 71.1%
• UA1720 DEN→IAH United Airlines on the same route, departs 7:45 AM, on time 89.4%
• F93206 DEN→IAH Frontier Airlines on the same route, departs 7:00 AM, on time 80.4%
• UA1794 IAH→MEM United Airlines flight out of IAH, IAH to MEM, departs 8:10 PM, on time 68.9%