Flight profile · United Airlines
UA678
McAllen (MFE) to Houston (IAH) · scheduled 7:00 AM – 8:19 AM
How UA678 performs
388 operations, 2025-05-01 to 2026-06-30.
UA678 arrived on time 84.7% of the time, against 85.8% for all MFE → IAH flights — this specific departure is 1.1 percentage points worse than the route as a whole. Against United Airlines’s own flights on this route it is 3.8 points worse.
Source: US DOT Bureau of Transportation Statistics · 388 operations between 2025-05-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA678 | 84.7% | 0.77% | -7 min | 5.5% | 388 |
| United Airlines on MFE → IAH | 88.5% | 1.98% | -11 min | 4.8% | 1,414 |
| All MFE → IAH flights | 85.8% | 1.82% | -11 min | 6.3% | 2,193 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-05-01 to 2026-06-30
Other routes UA678 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 |
|---|---|---|---|
| IAH→LGA Houston to New York | 2025-05-01 – 2026-06-30 | 273 | 75.8% |
| SBA→DEN Santa Barbara to Denver | 2026-02-04 – 2026-02-04 | 1 | — |
| BTV→DEN Burlington to Denver | 2025-11-28 – 2025-11-28 | 1 | — |
| LGA→ORD New York to Chicago | 2025-05-22 – 2025-06-25 | 32 | — |
| DFW→IAH Dallas–Fort Worth to Houston | 2025-06-01 – 2025-06-25 | 25 | — |
| ORD→IAH Chicago to Houston | 2025-03-30 – 2025-04-30 | 32 | — |
| IAD→RSW Washington to Fort Myers | 2025-01-07 – 2025-03-29 | 82 | — |
| RSW→ORD Fort Myers to Chicago | 2025-02-13 – 2025-03-29 | 41 | — |
| IAD→PBI Washington to West Palm Beach | 2024-12-19 – 2025-01-06 | 19 | — |
| ORD→CLT Chicago to Charlotte | 2024-10-27 – 2024-12-18 | 52 | — |
| SAV→DEN Savannah to Denver | 2024-11-29 – 2024-11-29 | 1 | — |
| DEN→SFO Denver to San Francisco | 2024-09-26 – 2024-10-26 | 31 | — |
| SLC→EWR Salt Lake City to Newark | 2024-05-23 – 2024-09-25 | 126 | 76.1% |
| LAX→EWR Los Angeles to Newark | 2024-03-07 – 2024-05-22 | 77 | — |
| SFO→LAX San Francisco to Los Angeles | 2024-05-02 – 2024-05-22 | 15 | — |
| SBA→SFO Santa Barbara to San Francisco | 2024-05-02 – 2024-05-02 | 1 | — |
| EWR→ORD Newark to Chicago | 2024-03-07 – 2024-03-30 | 21 | — |
| EWR→MSN Newark to Madison | 2024-02-15 – 2024-03-06 | 21 | — |
| IAD→JAX Washington to Jacksonville | 2024-01-09 – 2024-02-14 | 32 | — |
| DEN→FLL Denver to Fort Lauderdale | 2024-01-13 – 2024-02-10 | 5 | — |
| LAX→CLE Los Angeles to Cleveland | 2023-10-29 – 2024-01-08 | 49 | — |
| CLE→EWR Cleveland to Newark | 2023-09-05 – 2023-12-20 | 69 | — |
| DCA→ORD Washington to Chicago | 2023-07-01 – 2023-09-04 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route UA678 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 388 records of UA678 operating MFE → 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.