Flight profile · SkyWest Airlines
OO4819
Dallas–Fort Worth (DFW) to St George (SGU) · scheduled 8:20 AM – 10:32 AM
How OO4819 performs
377 operations, 2025-06-05 to 2026-06-30.
OO4819 arrived on time 73.1% of the time, against 75.7% for all DFW → SGU flights — this specific departure is 2.6 percentage points worse than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 2.6 points worse.
Source: US DOT Bureau of Transportation Statistics · 377 operations between 2025-06-05 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO4819 | 73.1% | 0.27% | -6 min | 11.2% | 377 |
| SkyWest Airlines on DFW → SGU | 75.7% | 0.55% | -5 min | 9.8% | 1,283 |
| All DFW → SGU flights | 75.7% | 0.55% | -5 min | 9.8% | 1,283 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-06-05 to 2026-06-30
Other routes OO4819 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 |
|---|---|---|---|
| PHX→SEA Phoenix to Seattle | 2024-12-05 – 2025-01-06 | 33 | — |
| SEA→PHX Seattle to Phoenix | 2024-12-05 – 2025-01-06 | 30 | — |
| DFW→JAN Dallas–Fort Worth to Jackson | 2024-10-06 – 2024-11-19 | 3 | — |
| JAN→DFW Jackson to Dallas–Fort Worth | 2024-11-12 – 2024-11-19 | 2 | — |
| DFW→LFT Dallas–Fort Worth to Lafayette | 2024-10-07 – 2024-11-04 | 28 | — |
| MRY→PHX Monterey to Phoenix | 2024-09-04 – 2024-09-04 | 1 | — |
| LAX→SFO Los Angeles to San Francisco | 2024-06-05 – 2024-09-03 | 78 | — |
| ACT→DFW Waco to Dallas–Fort Worth | 2024-05-06 – 2024-06-04 | 30 | — |
| DFW→ACT Dallas–Fort Worth to Waco | 2024-05-06 – 2024-06-04 | 30 | — |
| PHX→DRO Phoenix to Durango | 2024-04-09 – 2024-04-30 | 4 | — |
| PDX→LAX Portland to Los Angeles | 2024-01-08 – 2024-04-03 | 68 | — |
| LAX→PDX Los Angeles to Portland | 2024-01-08 – 2024-02-12 | 19 | — |
| DFW→GGG Dallas–Fort Worth to Longview | 2023-12-23 – 2024-01-06 | 3 | — |
| GGG→DFW Longview to Dallas–Fort Worth | 2023-12-23 – 2024-01-06 | 3 | — |
| CLE→ORD Cleveland to Chicago | 2023-12-11 – 2023-12-11 | 1 | — |
| ORD→CLE Chicago to Cleveland | 2023-12-11 – 2023-12-11 | 1 | — |
| OKC→AUS Oklahoma City to Austin | 2023-11-05 – 2023-12-04 | 25 | — |
| HOU→DFW Houston to Dallas–Fort Worth | 2023-10-05 – 2023-11-04 | 30 | — |
| DFW→HOU Dallas–Fort Worth to Houston | 2023-10-05 – 2023-11-04 | 29 | — |
| PHX→PSP Phoenix to Palm Springs | 2023-09-06 – 2023-10-04 | 29 | — |
| PSP→PHX Palm Springs to Phoenix | 2023-09-07 – 2023-10-04 | 24 | — |
| MSN→ORD Madison to Chicago | 2023-08-16 – 2023-09-05 | 20 | — |
| AVL→ORD Asheville to Chicago | 2023-07-01 – 2023-08-12 | 7 | — |
| ORD→AVL Chicago to Asheville | 2023-07-01 – 2023-08-12 | 7 | — |
| MFR→PHX Medford to Phoenix | 2023-07-04 – 2023-08-01 | 5 | — |
Because the same number has served different journeys, the statistics above describe only the route OO4819 currently operates. Blending them would produce an average of two different flights.
Why OO4819 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
airspace and airport capacity, including weather-driven flow control
Share of the delay minutes US DOT attributed to each cause for OO4819 on DFW → SGU. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Data and methodology
Calculated by FlyerIntel from 377 records of OO4819 operating DFW → SGU, 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.