ON TIMEBOARD

UA 4228 on time

United Airlines 4228: Birmingham to Houston at 6:54 p.m. (past 12 months)

On time
78%
129 flights · likely 70–84%
Cancelled
3.1%
of scheduled flights
Typical arrival
−15 min
median vs schedule
When late
+80 min
average delay
Similar flights
77%
UA, same route & hour

About 1 in 4 UA 4228 flights from Birmingham arrived 15+ minutes late, diverted or cancelled over the past year (22%); 3.1% were cancelled. The typical flight landed 15 minutes early.

UA 4228: BHM → IAH

Scheduled to leave Birmingham at 6:54 p.m. local time, operated by CommutAir as C5 4228. Over the past year it arrived on time 78% of the time (129 flights), in line with other UA flights on the route at that hour (77%). Last seen in the data Aug 31, 2026.

Usually United Airlines's last flight of the day from Birmingham to Houston (64% of days). United Airlines's last BHM–IAH flight was cancelled 1.9% of the time, against 0.8% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 6:30 a.m. the next morning.

Month by month

40%70%100%Jun 2025: 47% on time (30 flights)47JunJul 2025: 50% on time (26 flights)50JulAug 2025: 63% on time (27 flights)63AugSep 2025: 76% on time (21 flights)76SepOct 2025: too few flights (5 flights)OctNov 2025: 74% on time (23 flights)74NovDec 2025: 80% on time (15 flights)80DecJan 2026: too few flights (5 flights)JanMay 2026: too few flights (6 flights)MayJun 2026: 65% on time (17 flights)65JunJul 2026: 75% on time (16 flights)75JulAug 2026: 95% on time (21 flights)95Aug

By day of week

DayFlightsOn time
Monday2882%
Tuesday7—
Wednesday14—
Thursday2483%
Friday2568%
Saturday6—
Sunday2576%

Why it was late

Late inbound plane 53%Airline (crew, maintenance, ops) 35%Air traffic & airport (NAS) 13%

All flights BHM → IAH · Connecting off UA 4228? Check the risk

Questions

How often is UA 4228 from BHM to IAH late?

United Airlines 4228 from Birmingham, AL to Houston, TX arrived 15 or more minutes late, was diverted or was cancelled on 22% of 129 scheduled flights between September 2025 and August 2026. 3.1% 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.