ON TIMEBOARD

UA 4234 on time

United Airlines 4234: Washington to Scranton at 1:13 p.m. (past 12 months)

On time
85%
158 flights · likely 79–90%
Cancelled
3.2%
of scheduled flights
Typical arrival
−14 min
median vs schedule
When late
+88 min
average delay
Similar flights
76%
UA, same route & hour

About 1 in 7 UA 4234 flights from Washington arrived 15+ minutes late, diverted or cancelled over the past year (15%); 3.2% were cancelled. The typical flight landed 14 minutes early.

UA 4234: IAD → AVP

Scheduled to leave Washington at 1:13 p.m. local time, operated by CommutAir as C5 4234. Over the past year it arrived on time 85% of the time (158 flights), better than other UA flights on the route at that hour (76%). Last seen in the data Aug 31, 2026.

Usually United Airlines's last flight of the day from Washington to Scranton (75% of days). United Airlines's last IAD–AVP flight was cancelled 3.8% of the time, against 2.2% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 8:30 a.m. the next morning.

Month by month

40%70%100%Mar 2025: 76% on time (29 flights)76MarApr 2025: 90% on time (30 flights)90AprMay 2025: 71% on time (28 flights)71MayJun 2025: 60% on time (25 flights)60JunJul 2025: 78% on time (23 flights)78JulAug 2025: 84% on time (25 flights)84AugSep 2025: 93% on time (30 flights)93SepOct 2025: 96% on time (25 flights)96OctMay 2026: too few flights (11 flights)MayJun 2026: 83% on time (30 flights)83JunJul 2026: 68% on time (31 flights)68JulAug 2026: 94% on time (31 flights)94Aug

By day of week

DayFlightsOn time
Monday2383%
Tuesday2286%
Wednesday2291%
Thursday2383%
Friday2378%
Saturday2391%
Sunday2286%

Why it was late

Late inbound plane 53%Airline (crew, maintenance, ops) 36%Air traffic & airport (NAS) 9%Severe weather 2%

All flights IAD → AVP · Connecting off UA 4234? Check the risk

Questions

How often is UA 4234 from IAD to AVP late?

United Airlines 4234 from Washington, DC to Scranton/Wilkes-Barre, PA arrived 15 or more minutes late, was diverted or was cancelled on 15% of 158 scheduled flights between September 2025 and August 2026. 3.2% 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.