About 1 in 5 UA 4232 flights from Harlingen arrived 15+ minutes late, diverted or cancelled over the past year (19%); 0.3% were cancelled. The typical flight landed 5 minutes early.
UA 4232: HRL → IAH
Scheduled to leave Harlingen at 7:00 a.m. local time, operated by CommutAir as C5 4232. Over the past year it arrived on time 81% of the time (336 flights), in line with other UA flights on the route at that hour (81%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 83% |
| Tuesday | 44 | 84% |
| Wednesday | 43 | 79% |
| Thursday | 52 | 79% |
| Friday | 52 | 79% |
| Saturday | 40 | 80% |
| Sunday | 52 | 81% |
Why it was late
All flights HRL → IAH · Connecting off UA 4232? Check the risk
Questions
How often is UA 4232 from HRL to IAH late?
United Airlines 4232 from Harlingen/San Benito, TX to Houston, TX arrived 15 or more minutes late, was diverted or was cancelled on 19% of 336 scheduled flights between September 2025 and August 2026. 0.3% 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.