ON TIMEBOARD

UA 485 on time

United Airlines 485: Chicago to Newark at 4:40 p.m. (past 12 months)

On time
51%
159 flights · likely 43–59%
Cancelled
3.1%
of scheduled flights
Typical arrival
+13 min
median vs schedule
When late
+108 min
average delay
Similar flights
59%
UA, same route & hour

About 1 in 2 UA 485 flights from Chicago arrived 15+ minutes late, diverted or cancelled over the past year (49%); 3.1% were cancelled. The typical flight landed 13 minutes late.

UA 485: ORD → EWR

Scheduled to leave Chicago at 4:40 p.m. local time. Over the past year it arrived on time 51% of the time (159 flights), worse than other UA flights on the route at that hour (59%). Last seen in the data Aug 10, 2026.

Month by month

30%65%100%Sep 2025: too few flights (5 flights)SepOct 2025: 45% on time (31 flights)45OctNov 2025: 62% on time (29 flights)62NovDec 2025: 53% on time (17 flights)53DecMay 2026: too few flights (9 flights)MayJun 2026: 52% on time (27 flights)52JunJul 2026: 42% on time (31 flights)42JulAug 2026: too few flights (10 flights)Aug

By day of week

DayFlightsOn time
Monday2454%
Tuesday2361%
Wednesday2352%
Thursday2335%
Friday2463%
Saturday18—
Sunday2442%

Why it was late

Air traffic & airport (NAS) 57%Late inbound plane 30%Airline (crew, maintenance, ops) 7%Severe weather 5%

All flights ORD → EWR · Connecting off UA 485? Check the risk

Questions

How often is UA 485 from ORD to EWR late?

United Airlines 485 from Chicago, IL to Newark, NJ arrived 15 or more minutes late, was diverted or was cancelled on 49% of 159 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.