Flight profile · United Airlines
UA326
Washington (IAD) to Seattle (SEA) · scheduled 5:55 PM – 8:20 PM
How UA326 performs
860 operations, 2023-07-01 to 2026-06-30.
UA326 arrived on time 76.2% of the time, against 79.3% for all IAD → SEA flights — this specific departure is 3.1 percentage points worse than the route as a whole. Against United Airlines’s own flights on this route it is 5.7 points worse.
Source: US DOT Bureau of Transportation Statistics · 860 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA326 | 76.2% | 2.56% | -4 min | 8.7% | 860 |
| United Airlines on IAD → SEA | 81.9% | 1.42% | -9 min | 5.8% | 2,332 |
| All IAD → SEA flights | 79.3% | 1.14% | -7 min | 6.3% | 6,309 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does UA326 run worse on particular days?
Wednesday is historically the most reliable day and Thursday the least, a gap of 9.8 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes UA326 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| BGR→ORD Bangor to Chicago | 2026-06-27 – 2026-06-27 | 1 | — |
| DEN→ANC Denver to Anchorage | 2026-05-23 – 2026-06-20 | 5 | — |
| DEN→AUS Denver to Austin | 2026-05-20 – 2026-05-20 | 1 | — |
| DEN→IAD Denver to Washington | 2026-03-05 – 2026-03-28 | 24 | — |
| TPA→IAD Tampa to Washington | 2025-03-06 – 2026-03-04 | 346 | 81.0% |
| DEN→TPA Denver to Tampa | 2026-02-12 – 2026-03-02 | 15 | — |
| SEA→DEN Seattle to Denver | 2025-11-29 – 2025-11-30 | 2 | — |
| EYW→IAD Key West to Washington | 2025-02-13 – 2025-03-05 | 21 | — |
| IAH→IAD Houston to Washington | 2024-03-07 – 2024-12-02 | 61 | — |
| SEA→EWR Seattle to Newark | 2024-05-24 – 2024-05-31 | 7 | — |
| PBI→IAD West Palm Beach to Washington | 2024-03-01 – 2024-03-06 | 6 | — |
| RSW→IAD Fort Myers to Washington | 2024-01-09 – 2024-02-14 | 37 | — |
| ORD→IAD Chicago to Washington | 2023-07-01 – 2023-12-20 | 145 | 78.7% |
| IAD→SMF Washington to Sacramento | 2023-11-30 – 2023-12-18 | 9 | — |
| MCO→ORD Orlando to Chicago | 2023-10-29 – 2023-11-27 | 23 | — |
| RSW→ORD Fort Myers to Chicago | 2023-07-01 – 2023-09-04 | 63 | — |
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.
Data and methodology
Calculated by FlyerIntel from 860 records of UA326 operating IAD → SEA, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.