UA1720

UA1720 arrived on time 89.4% of the time, against 76.8% for all DEN → IAH flights, so this departure is 12.6 percentage points better than the route as a whole. Against United Airlines’ own flights on this route it is 12.2 points better.

Source: US DOT Bureau of Transportation Statistics · 742 operations, November 2023 – July 2026 · If UA1720 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.

This flight runs unusually far ahead of the carrier's own average on this route, better than 95% of 11,589 comparable flight numbers.

89.4% on time for this specific departure, against 77.2% for the same carrier's other flights on this route.

Source: FlyerIntel analysis of US DOT BTS data · November 2023 – July 2026 · The one thing about this specific departure that ranks most extreme against every other published flight number, out of everything FlyerIntel checks — shown only when something clears a real statistical bar, not for every flight.

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

Share of the delay minutes US DOT attributed to each cause for UA1720 on DEN → IAH. Only delays of 15 minutes or more are attributed.

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

UA1720 is usually the aircraft’s first flight of the day: the schedule gives it a median of 8 hours on the ground at DEN, so its “inbound” is mostly the aircraft’s arrival the evening before.

The aircraft flying UA1720 came in 15 or more minutes late on 14% 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, 512 of 739 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 November 2023 – July 2026

UA1720 pushes back an average of 1.9 minutes late and reaches the gate at IAH an average of 5.0 minutes early. The 6.9 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 19.7 minutes on the taxiways at DEN is about what any departure from the airport in that hour spends.

On arrival at IAH, UA1720 spends 9.2 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 1.4 minutes shorter 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 46,622 departures from DEN scheduled in the clock hour UA1720 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 UA1720’s own. More on taxi time.

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

UA1720 is scheduled out of DEN at 7:45 AM, in the 7 AM–8 AM bank. Departures from DEN in that hour arrive on time 87.5% of the time against 76.0% across the airport’s whole day — the slot alone is worth 11.5 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 · November 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 UA1720 currently operates. Blending them would produce an average of two different flights.

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

Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. UA1720 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.

• F93206 DEN→IAH Frontier Airlines on the same route, departs 7:00 AM, on time 80.4%
• UA320 DEN→IAH United Airlines on the same route, departs 5:00 AM, on time 94.7%
• UA1829 DEN→IAH United Airlines on the same route, departs 1:25 PM, on time 71.1%
• UA469 SAT→IAH United Airlines flight into IAH, SAT to IAH, departs 5:30 AM, on time 95.0%