UA414

UA414 arrived on time 90.1% of the time, against 78.2% for all BOS → DEN flights, so this departure is 11.9 percentage points better than the route as a whole. Against United Airlines’ own flights on this route it is 6.9 points better.

Source: US DOT Bureau of Transportation Statistics · 1,112 operations, July 2023 – July 2026 · If UA414 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 BOS → DEN route as a whole, better than 94% of 11,788 comparable flight numbers.

90.1% on time for this specific departure, against 78.2% for every BOS → DEN flight.

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

Share of the delay minutes US DOT attributed to each cause for UA414 on BOS → DEN. Only delays of 15 minutes or more are attributed.

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

The aircraft flying UA414 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 BOS just before it, using the tail number in the DOT file, 868 of 1,094 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

UA414 pushes back an average of 3.7 minutes late and reaches the gate at DEN an average of 10.9 minutes early. The 14.6 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 16.7 minutes on the taxiways at BOS, 2.2 minutes shorter than a typical BOS departure in the same hour.

On arrival at DEN, UA414 spends 8.5 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 1.3 minutes shorter than a typical DEN arrival (9.8 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 DEN. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 24,250 departures from BOS scheduled in the clock hour UA414 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at DEN (963,027 flights), not just UA414’s own. More on taxi time.

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

UA414 is scheduled out of BOS at 11:40 AM, in the 11 AM–12 PM bank. Departures from BOS in that hour arrive on time 81.9% of the time against 77.2% across the airport’s whole day — the slot alone is worth 4.7 points better before anything about this particular flight is considered.

The two airport figures cover every departure from BOS 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 UA414 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. UA414 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.

• B6393 BOS→DEN JetBlue on the same route, departs 10:00 AM, on time 79.4%
• UA662 BOS→DEN United Airlines on the same route, departs 9:30 AM, on time 91.0%
• DL499 BOS→DEN Delta Air Lines on the same route, departs 7:45 AM, on time 82.1%
• UA597 DEN→BOS Return trip, DEN to BOS, departs 2:10 PM, on time 69.2%