Flight profile · SkyWest Airlines
OO4921
Phoenix (PHX) to Salt Lake City (SLC) · scheduled 8:20 PM – 9:37 PM
How OO4921 performs
275 operations, 2024-12-05 to 2026-06-30.
OO4921 arrived on time 79.3% of the time, against 84.6% for all PHX → SLC flights — this specific departure is 5.3 percentage points worse than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 6.5 points worse.
Source: US DOT Bureau of Transportation Statistics · 275 operations between 2024-12-05 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO4921 | 79.3% | 0.00% | -5 min | 8.4% | 275 |
| SkyWest Airlines on PHX → SLC | 85.8% | 0.09% | -8 min | 4.7% | 3,186 |
| All PHX → SLC flights | 84.6% | 0.35% | -8 min | 4.5% | 17,312 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-12-05 to 2026-06-30
Other routes OO4921 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 |
|---|---|---|---|
| DAY→ORD Dayton to Chicago | 2026-03-08 – 2026-04-06 | 30 | — |
| ORD→DAY Chicago to Dayton | 2026-03-08 – 2026-04-06 | 30 | — |
| SBA→PHX Santa Barbara to Phoenix | 2026-02-12 – 2026-02-12 | 1 | — |
| ORD→OMA Chicago to Omaha | 2026-01-31 – 2026-02-10 | 8 | — |
| YUM→PHX Yuma to Phoenix | 2026-01-06 – 2026-01-13 | 5 | — |
| PHX→YUM Phoenix to Yuma | 2026-01-06 – 2026-01-13 | 5 | — |
| FWA→ORD Fort Wayne to Chicago | 2025-12-19 – 2026-01-05 | 18 | — |
| SHV→CLT Shreveport to Charlotte | 2025-12-03 – 2025-12-17 | 15 | — |
| FNT→ORD Flint to Chicago | 2025-11-02 – 2025-12-02 | 30 | — |
| PHX→BOI Phoenix to Boise | 2025-08-06 – 2025-11-01 | 67 | — |
| BOI→PHX Boise to Phoenix | 2025-08-06 – 2025-10-30 | 55 | — |
| CVG→ORD Cincinnati / Covington to Chicago | 2025-09-10 – 2025-10-04 | 8 | — |
| ORD→CVG Chicago to Cincinnati / Covington | 2025-09-10 – 2025-10-04 | 8 | — |
| FLG→DFW Flagstaff to Dallas–Fort Worth | 2024-11-05 – 2024-12-04 | 30 | — |
| DFW→SPS Dallas–Fort Worth to Wichita Falls | 2024-10-07 – 2024-11-04 | 29 | — |
| DFW→GPT Dallas–Fort Worth to Gulfport | 2024-09-04 – 2024-10-06 | 33 | — |
| GPT→DFW Gulfport to Dallas–Fort Worth | 2024-09-04 – 2024-10-06 | 33 | — |
| SAT→LAX San Antonio to Los Angeles | 2024-08-06 – 2024-09-03 | 17 | — |
| DFW→GGG Dallas–Fort Worth to Longview | 2024-07-04 – 2024-07-04 | 1 | — |
| JAN→DFW Jackson to Dallas–Fort Worth | 2024-02-16 – 2024-03-04 | 18 | — |
| PHX→TUS Phoenix to Tucson | 2023-11-05 – 2024-01-07 | 63 | — |
| DFW→HOU Dallas–Fort Worth to Houston | 2023-07-05 – 2023-07-05 | 1 | — |
| HOU→DFW Houston to Dallas–Fort Worth | 2023-07-05 – 2023-07-05 | 1 | — |
| DFW→EVV Dallas–Fort Worth to Evansville | 2023-07-04 – 2023-07-04 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route OO4921 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 275 records of OO4921 operating PHX → SLC, 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.