About 1 in 4 UA 4334 flights from Houston arrived 15+ minutes late, diverted or cancelled over the past year (26%); 0.0% were cancelled. The typical flight landed 6 minutes early.
UA 4334: IAH → JAN
Scheduled to leave Houston at 6:40 p.m. local time, operated by CommutAir as C5 4334. Over the past year it arrived on time 74% of the time (172 flights), in line with other UA flights on the route at that hour (75%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 26 | 77% |
| Tuesday | 24 | 71% |
| Wednesday | 23 | 74% |
| Thursday | 24 | 79% |
| Friday | 25 | 80% |
| Saturday | 24 | 71% |
| Sunday | 26 | 65% |
Why it was late
All flights IAH → JAN · Connecting off UA 4334? Check the risk
Questions
How often is UA 4334 from IAH to JAN late?
United Airlines 4334 from Houston, TX to Jackson/Vicksburg, MS arrived 15 or more minutes late, was diverted or was cancelled on 26% of 172 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.