Flight profile · United Airlines
UA2491
Houston (IAH) to San Diego (SAN) · scheduled 9:30 AM – 11:07 AM
How UA2491 performs
589 operations, 2024-09-26 to 2026-06-30.
UA2491 arrived on time 86.1% of the time, against 80.6% for all IAH → SAN flights — this specific departure is 5.5 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 5.5 points better.
Source: US DOT Bureau of Transportation Statistics · 589 operations between 2024-09-26 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA2491 | 86.1% | 0.85% | -10 min | 4.5% | 589 |
| United Airlines on IAH → SAN | 80.6% | 1.20% | -6 min | 6.8% | 5,175 |
| All IAH → SAN flights | 80.6% | 1.25% | -6 min | 6.7% | 5,292 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-09-26 to 2026-06-30
Other routes UA2491 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 |
|---|---|---|---|
| TPA→IAH Tampa to Houston | 2026-01-06 – 2026-06-30 | 175 | 93.7% |
| SAN→DEN San Diego to Denver | 2026-01-06 – 2026-02-11 | 37 | — |
| PIT→IAH Pittsburgh to Houston | 2024-05-23 – 2025-12-17 | 469 | 87.6% |
| SAN→EWR San Diego to Newark | 2025-09-25 – 2025-10-24 | 26 | — |
| DSM→ORD Des Moines to Chicago | 2025-06-15 – 2025-06-22 | 2 | — |
| IAH→RNO Houston to Reno | 2025-05-24 – 2025-06-21 | 5 | — |
| SAN→ORD San Diego to Chicago | 2025-03-30 – 2025-05-21 | 53 | — |
| MSP→DEN Minneapolis to Denver | 2024-05-02 – 2024-05-22 | 21 | — |
| MSY→EWR New Orleans to Newark | 2024-03-31 – 2024-05-01 | 32 | — |
| LAS→EWR Las Vegas to Newark | 2024-03-07 – 2024-03-30 | 24 | — |
| SFO→LAS San Francisco to Las Vegas | 2024-03-07 – 2024-03-30 | 24 | — |
| ORD→BDL Chicago to Hartford | 2024-02-15 – 2024-03-06 | 21 | — |
| LGA→IAH New York to Houston | 2023-07-01 – 2024-02-14 | 214 | 92.0% |
| ORD→RSW Chicago to Fort Myers | 2024-01-06 – 2024-01-06 | 1 | — |
| IAH→LAS Houston to Las Vegas | 2023-12-25 – 2024-01-05 | 11 | — |
| IAH→SLC Houston to Salt Lake City | 2023-07-01 – 2023-09-04 | 64 | — |
Because the same number has served different journeys, the statistics above describe only the route UA2491 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 589 records of UA2491 operating IAH → SAN, 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.