About 1 in 7 UA 4357 flights from Laredo arrived 15+ minutes late, diverted or cancelled over the past year (15%); 0.0% were cancelled. The typical flight landed 9 minutes early.
UA 4357: LRD → IAH
Scheduled to leave Laredo at 9:30 a.m. local time, operated by CommutAir as C5 4357. Over the past year it arrived on time 85% of the time (209 flights), in line with other UA flights on the route at that hour (85%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 30 | 90% |
| Tuesday | 30 | 90% |
| Wednesday | 30 | 87% |
| Thursday | 29 | 76% |
| Friday | 30 | 90% |
| Saturday | 30 | 83% |
| Sunday | 30 | 80% |
Why it was late
All flights LRD → IAH · Connecting off UA 4357? Check the risk
Questions
How often is UA 4357 from LRD to IAH late?
United Airlines 4357 from Laredo, TX to Houston, TX arrived 15 or more minutes late, was diverted or was cancelled on 15% of 209 scheduled flights between September 2025 and August 2026. 0.0% 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.