About 1 in 6 UA 6338 flights from Houston arrived 15+ minutes late, diverted or cancelled over the past year (16%); 0.6% were cancelled. The typical flight landed 12 minutes early.
UA 6338: IAH → MAF
Scheduled to leave Houston at 12:10 p.m. local time, operated by Mesa Airlines as YV 6338. Over the past year it arrived on time 84% of the time (165 flights), worse than other UA flights on the route at that hour (88%). Last seen in the data Aug 10, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 28 | 64% |
| Tuesday | 27 | 74% |
| Wednesday | 27 | 93% |
| Thursday | 27 | 96% |
| Friday | 27 | 81% |
| Saturday | 13 | — |
| Sunday | 16 | — |
Why it was late
All flights IAH → MAF · Connecting off UA 6338? Check the risk
Questions
How often is UA 6338 from IAH to MAF late?
United Airlines 6338 from Houston, TX to Midland/Odessa, TX arrived 15 or more minutes late, was diverted or was cancelled on 16% of 165 scheduled flights between September 2025 and August 2026. 0.6% 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.