Flight profile · United Airlines
UA2379
Seattle (SEA) to Houston (IAH) · scheduled 11:59 PM – 6:14 AM
How UA2379 performs
852 operations, 2023-07-01 to 2026-06-29.
UA2379 arrived on time 81.6% of the time, against 79.3% for all SEA → IAH flights — this specific departure is 2.3 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 1.6 points worse.
Source: US DOT Bureau of Transportation Statistics · 852 operations between 2023-07-01 to 2026-06-29
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA2379 | 81.6% | 1.76% | -6 min | 4.4% | 852 |
| United Airlines on SEA → IAH | 83.2% | 1.25% | -7 min | 5.2% | 3,668 |
| All SEA → IAH flights | 79.3% | 1.24% | -5 min | 4.8% | 6,298 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-29
By day of week
Does UA2379 run worse on particular days?
Thursday is historically the most reliable day and Saturday the least, a gap of 7.6 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-29 · Days with fewer than 120 operations are not scored.
Other routes UA2379 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 |
|---|---|---|---|
| RSW→ORD Fort Myers to Chicago | 2026-03-29 – 2026-04-29 | 32 | — |
| JAX→ORD Jacksonville to Chicago | 2026-03-05 – 2026-03-28 | 24 | — |
| MAF→IAH Midland to Houston | 2026-02-12 – 2026-03-04 | 18 | — |
| IAH→MFE Houston to McAllen | 2026-01-06 – 2026-02-11 | 37 | — |
| IAH→SFO Houston to San Francisco | 2025-02-13 – 2025-03-05 | 21 | — |
| MSY→DEN New Orleans to Denver | 2025-01-07 – 2025-02-12 | 37 | — |
| ORD→SEA Chicago to Seattle | 2024-06-27 – 2024-08-18 | 52 | — |
| OMA→IAH Omaha to Houston | 2024-02-15 – 2024-03-06 | 21 | — |
| MIA→EWR Miami to Newark | 2024-01-09 – 2024-02-14 | 37 | — |
Because the same number has served different journeys, the statistics above describe only the route UA2379 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 852 records of UA2379 operating SEA → IAH, 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.