ON TIMEBOARD

UA 4364 on time

United Airlines 4364: Washington to Columbia at 5:21 p.m. (past 12 months)

On time
78%
278 flights · likely 73–83%
Cancelled
1.8%
of scheduled flights
Typical arrival
−9 min
median vs schedule
When late
+60 min
average delay
Similar flights
78%
UA, same route & hour

About 1 in 5 UA 4364 flights from Washington arrived 15+ minutes late, diverted or cancelled over the past year (22%); 1.8% were cancelled. The typical flight landed 9 minutes early.

UA 4364: IAD → CAE

Scheduled to leave Washington at 5:21 p.m. local time, operated by CommutAir as C5 4364. Over the past year it arrived on time 78% of the time (278 flights), in line with other UA flights on the route at that hour (78%). Last seen in the data Aug 31, 2026.

Usually United Airlines's last flight of the day from Washington to Columbia (79% of days). United Airlines's last IAD–CAE flight was cancelled 2.9% of the time, against 0.9% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 8:15 a.m. the next morning.

Month by month

40%70%100%Aug 2025: 81% on time (27 flights)81AugSep 2025: 85% on time (27 flights)85SepOct 2025: 87% on time (31 flights)87OctNov 2025: 90% on time (29 flights)90NovDec 2025: 68% on time (28 flights)68DecJan 2026: too few flights (4 flights)JanMar 2026: 88% on time (25 flights)88MarApr 2026: too few flights (11 flights)AprMay 2026: 87% on time (31 flights)87MayJun 2026: 77% on time (30 flights)77JunJul 2026: 61% on time (31 flights)61JulAug 2026: 61% on time (31 flights)61Aug

By day of week

DayFlightsOn time
Monday4381%
Tuesday3887%
Wednesday3789%
Thursday4267%
Friday4372%
Saturday3373%
Sunday4281%

Why it was late

Air traffic & airport (NAS) 41%Airline (crew, maintenance, ops) 39%Late inbound plane 14%Severe weather 6%

All flights IAD → CAE · Connecting off UA 4364? Check the risk

Questions

How often is UA 4364 from IAD to CAE late?

United Airlines 4364 from Washington, DC to Columbia, SC arrived 15 or more minutes late, was diverted or was cancelled on 22% of 278 scheduled flights between September 2025 and August 2026. 1.8% 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.