UA326

UA326 arrived on time 75.8% of the time, against 79.4% for all IAD → SEA flights, so this departure is 3.6 percentage points worse than the route as a whole. Against United Airlines’ own flights on this route it is 6.0 points worse.

UA326’s scheduled departure has moved during the period FlyerIntel has on file: it typically left around 5:30 PM earlier on, and around 6:00 PM more recently — a 30-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 · 887 operations, July 2023 – July 2026 · If UA326 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.

UA326 has cancelled 2.59% of its scheduled departures (23 of 887), against 1.13% for all IAD → SEA flights — this specific departure cancels 1.5 percentage points more often than the route as a whole. Different flight numbers on the same route can carry different aircraft, crews and schedules, so this is a fact about UA326 specifically, not about the route it flies.

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

Share of the delay minutes US DOT attributed to each cause for UA326 on IAD → SEA. 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 UA326 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 IAD just before it, using the tail number in the DOT file, 717 of 866 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

UA326 pushes back an average of 15.2 minutes late and reaches the gate at SEA an average of 8.2 minutes late. The 7.0 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 25.5 minutes on the taxiways at IAD is about what any departure from the airport in that hour spends.

On arrival at SEA, UA326 spends 10.7 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 1.2 minutes shorter than a typical SEA arrival (11.9 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 SEA. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 37,767 departures from IAD scheduled in the clock hour UA326 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at SEA (510,187 flights), not just UA326’s own. More on taxi time.

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

UA326 is scheduled out of IAD at 5:55 PM, in the 5 PM–6 PM bank. Departures from IAD in that hour arrive on time 72.1% of the time against 81.0% across the airport’s whole day — the slot alone is worth 8.9 points worse before anything about this particular flight is considered.

The two airport figures cover every departure from IAD 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 UA326 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. UA326 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.

• DL1015 IAD→SEA Delta Air Lines on the same route, departs 7:00 AM, on time 82.7%
• UA376 AUS→IAD United Airlines flight into IAD, AUS to IAD, departs 5:00 PM, on time 84.1%
• UA2024 SJU→IAD United Airlines flight into IAD, SJU to IAD, departs 4:55 PM, on time 80.9%