ON TIMEBOARD

UA 6233 on time

United Airlines 6233: Houston to Midland at 4:35 p.m. (past 12 months)

On time
85%
190 flights · likely 79–89%
Cancelled
0.5%
of scheduled flights
Typical arrival
−14 min
median vs schedule
When late
+88 min
average delay
Similar flights
86%
UA, same route & hour

About 1 in 7 UA 6233 flights from Houston arrived 15+ minutes late, diverted or cancelled over the past year (15%); 0.5% were cancelled. The typical flight landed 14 minutes early.

UA 6233: IAH → MAF

Scheduled to leave Houston at 4:35 p.m. local time, operated by Mesa Airlines as YV 6233. Over the past year it arrived on time 85% of the time (190 flights), in line with other UA flights on the route at that hour (86%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Dec 2025: too few flights (14 flights)DecJan 2026: 86% on time (21 flights)86JanFeb 2026: 100% on time (20 flights)100FebMar 2026: 79% on time (28 flights)79MarApr 2026: too few flights (1 flights)AprMay 2026: 90% on time (30 flights)90MayJun 2026: 62% on time (26 flights)62JunJul 2026: 96% on time (27 flights)96JulAug 2026: 87% on time (23 flights)87Aug

By day of week

DayFlightsOn time
Monday3177%
Tuesday3190%
Wednesday3284%
Thursday3291%
Friday2692%
Saturday8—
Sunday3077%

Why it was late

Late inbound plane 55%Airline (crew, maintenance, ops) 23%Air traffic & airport (NAS) 13%Severe weather 9%

All flights IAH → MAF · Connecting off UA 6233? Check the risk

Questions

How often is UA 6233 from IAH to MAF late?

United Airlines 6233 from Houston, TX to Midland/Odessa, TX arrived 15 or more minutes late, was diverted or was cancelled on 15% of 190 scheduled flights between September 2025 and August 2026. 0.5% 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.