About 1 in 10 UA 4019 flights from Mission arrived 15+ minutes late, diverted or cancelled over the past year (10%); 1.3% were cancelled. The typical flight landed 17 minutes early.
UA 4019: MFE → IAH
Scheduled to leave Mission at 5:00 a.m. local time, operated by Mesa Airlines as YV 4019. Over the past year it arrived on time 90% of the time (153 flights), worse than other UA flights on the route at that hour (93%). Last seen in the data Aug 13, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 25 | 92% |
| Tuesday | 14 | — |
| Wednesday | 14 | — |
| Thursday | 26 | 88% |
| Friday | 25 | 96% |
| Saturday | 25 | 84% |
| Sunday | 24 | 79% |
Why it was late
All flights MFE → IAH · Connecting off UA 4019? Check the risk
Questions
How often is UA 4019 from MFE to IAH late?
United Airlines 4019 from Mission/McAllen/Edinburg, TX to Houston, TX arrived 15 or more minutes late, was diverted or was cancelled on 10% of 153 scheduled flights between September 2025 and August 2026. 1.3% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.