ON TIMEBOARD

UA 1108 on time

United Airlines 1108: Washington to Charleston at 8:15 a.m. (past 12 months)

On time
90%
252 flights · likely 86–94%
Cancelled
0.0%
of scheduled flights
Typical arrival
−7 min
median vs schedule
When late
+40 min
average delay
Similar flights
91%
UA, same route & hour

About 1 in 11 UA 1108 flights from Washington arrived 15+ minutes late, diverted or cancelled over the past year (10%); 0.0% were cancelled. The typical flight landed 7 minutes early.

UA 1108: IAD → CHS

Scheduled to leave Washington at 8:15 a.m. local time. Over the past year it arrived on time 90% of the time (252 flights), in line with other UA flights on the route at that hour (91%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Aug 2025: 100% on time (25 flights)100AugSep 2025: 94% on time (17 flights)94SepOct 2025: 100% on time (20 flights)100OctNov 2025: 89% on time (27 flights)89NovDec 2025: too few flights (1 flights)DecFeb 2026: too few flights (12 flights)FebMar 2026: 93% on time (27 flights)93MarApr 2026: 88% on time (26 flights)88AprMay 2026: 93% on time (30 flights)93MayJun 2026: 90% on time (30 flights)90JunJul 2026: 87% on time (31 flights)87JulAug 2026: 81% on time (31 flights)81Aug

By day of week

DayFlightsOn time
Monday4290%
Tuesday3090%
Wednesday3394%
Thursday4290%
Friday4290%
Saturday2186%
Sunday4290%

Why it was late

Airline (crew, maintenance, ops) 45%Air traffic & airport (NAS) 29%Late inbound plane 27%

All flights IAD → CHS · Connecting off UA 1108? Check the risk

Questions

How often is UA 1108 from IAD to CHS late?

United Airlines 1108 from Washington, DC to Charleston, SC arrived 15 or more minutes late, was diverted or was cancelled on 10% of 252 scheduled flights between September 2025 and August 2026. 0.0% 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.