ON TIMEBOARD

UA 4377 on time

United Airlines 4377: Corpus Christi to Houston at 4:13 p.m. (past 12 months)

On time
75%
208 flights · likely 69–80%
Cancelled
1.0%
of scheduled flights
Typical arrival
−7 min
median vs schedule
When late
+87 min
average delay
Similar flights
74%
UA, same route & hour

About 1 in 4 UA 4377 flights from Corpus Christi arrived 15+ minutes late, diverted or cancelled over the past year (25%); 1.0% were cancelled. The typical flight landed 7 minutes early.

UA 4377: CRP → IAH

Scheduled to leave Corpus Christi at 4:13 p.m. local time, operated by CommutAir as C5 4377. Over the past year it arrived on time 75% of the time (208 flights), in line with other UA flights on the route at that hour (74%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Jul 2025: 61% on time (31 flights)61JulAug 2025: 58% on time (31 flights)58AugSep 2025: 80% on time (30 flights)80SepOct 2025: 56% on time (25 flights)56OctDec 2025: too few flights (13 flights)DecJan 2026: too few flights (5 flights)JanFeb 2026: 71% on time (17 flights)71FebMar 2026: 82% on time (28 flights)82MarMay 2026: too few flights (11 flights)MayJun 2026: 67% on time (30 flights)67JunJul 2026: 79% on time (29 flights)79JulAug 2026: 85% on time (20 flights)85Aug

By day of week

DayFlightsOn time
Monday3077%
Tuesday2681%
Wednesday2871%
Thursday3281%
Friday3174%
Saturday3259%
Sunday2983%

Why it was late

Late inbound plane 50%Air traffic & airport (NAS) 37%Airline (crew, maintenance, ops) 9%Severe weather 3%

All flights CRP → IAH · Connecting off UA 4377? Check the risk

Questions

How often is UA 4377 from CRP to IAH late?

United Airlines 4377 from Corpus Christi, TX to Houston, TX arrived 15 or more minutes late, was diverted or was cancelled on 25% of 208 scheduled flights between September 2025 and August 2026. 1.0% 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.