Flight profile · SkyWest Airlines
OO4121
McAllen (MFE) to Austin (AUS) · scheduled 5:17 PM – 6:40 PM
How OO4121 performs
123 operations, 2025-07-07 to 2026-06-30.
OO4121 arrived on time 79.7% of the time, against 81.7% for all MFE → AUS flights — this specific departure is 2.1 percentage points worse than the route as a whole. Against SkyWest Airlines’s own flights on this route it is 2.1 points worse.
Source: US DOT Bureau of Transportation Statistics · 123 operations between 2025-07-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| OO4121 | 79.7% | 0.00% | -5 min | 10.6% | 123 |
| SkyWest Airlines on MFE → AUS | 81.7% | 0.63% | -10 min | 8.6% | 2,236 |
| All MFE → AUS flights | 81.7% | 0.63% | -10 min | 8.6% | 2,236 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-07-07 to 2026-06-30
Other routes OO4121 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 |
|---|---|---|---|
| AUS→MFE Austin to McAllen | 2024-06-07 – 2026-06-27 | 538 | 76.3% |
| DTW→IND Detroit to Indianapolis | 2026-04-12 – 2026-04-12 | 1 | — |
| DTW→MSN Detroit to Madison | 2026-02-12 – 2026-03-06 | 18 | — |
| ATL→BTR Atlanta to Baton Rouge | 2025-05-25 – 2025-05-25 | 1 | — |
| BTR→ATL Baton Rouge to Atlanta | 2025-05-25 – 2025-05-25 | 1 | — |
| DTW→LEX Detroit to Lexington | 2024-12-20 – 2024-12-20 | 1 | — |
| LEX→DTW Lexington to Detroit | 2024-12-20 – 2024-12-20 | 1 | — |
| SEA→TUS Seattle to Tucson | 2024-07-08 – 2024-10-06 | 91 | 85.7% |
| TUS→SEA Tucson to Seattle | 2024-07-08 – 2024-10-06 | 91 | 78.0% |
| BOI→SLC Boise to Salt Lake City | 2024-05-07 – 2024-06-06 | 26 | — |
| SLC→BOI Salt Lake City to Boise | 2024-05-07 – 2024-06-06 | 26 | — |
| FAR→MSP Fargo to Minneapolis | 2024-04-09 – 2024-05-06 | 14 | — |
| GRB→MSP Green Bay to Minneapolis | 2024-04-27 – 2024-05-04 | 2 | — |
| MSP→GRB Minneapolis to Green Bay | 2024-04-27 – 2024-05-04 | 2 | — |
| ATL→HSV Atlanta to Huntsville | 2024-03-16 – 2024-04-06 | 4 | — |
| HSV→ATL Huntsville to Atlanta | 2024-03-16 – 2024-04-06 | 4 | — |
| MSP→IND Minneapolis to Indianapolis | 2024-04-01 – 2024-04-01 | 1 | — |
| LAS→SAN Las Vegas to San Diego | 2023-12-16 – 2024-01-07 | 20 | — |
| SAN→LAS San Diego to Las Vegas | 2023-12-16 – 2024-01-07 | 20 | — |
| DTW→MBS Detroit to Freeland | 2023-11-02 – 2023-12-06 | 35 | — |
| MBS→DTW Freeland to Detroit | 2023-11-02 – 2023-11-04 | 3 | — |
| BOS→MKE Boston to Milwaukee | 2023-09-05 – 2023-10-22 | 38 | — |
| ORD→JFK Chicago to New York | 2023-07-01 – 2023-09-04 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route OO4121 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 123 records of OO4121 operating MFE → AUS, 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.