ON TIMEBOARD

UA 1641 on time

United Airlines 1641: Chicago to Cleveland at 7:35 p.m. (past 12 months)

On time
62%
289 flights · likely 57–68%
Cancelled
1.0%
of scheduled flights
Typical arrival
+3 min
median vs schedule
When late
+75 min
average delay
Similar flights
60%
UA, same route & hour

About 1 in 3 UA 1641 flights from Chicago arrived 15+ minutes late, diverted or cancelled over the past year (38%); 1.0% were cancelled. The typical flight landed 3 minutes late.

UA 1641: ORD → CLE

Scheduled to leave Chicago at 7:35 p.m. local time. Over the past year it arrived on time 62% of the time (289 flights), in line with other UA flights on the route at that hour (60%). Last seen in the data Aug 10, 2026.

Month by month

30%65%100%Sep 2025: 62% on time (26 flights)62SepOct 2025: 59% on time (27 flights)59OctNov 2025: 39% on time (28 flights)39NovDec 2025: 61% on time (31 flights)61DecJan 2026: 63% on time (27 flights)63JanFeb 2026: 77% on time (26 flights)77FebMar 2026: 68% on time (31 flights)68MarApr 2026: 65% on time (26 flights)65AprMay 2026: 81% on time (26 flights)81MayJun 2026: too few flights (6 flights)JunJul 2026: 52% on time (27 flights)52JulAug 2026: too few flights (8 flights)Aug

By day of week

DayFlightsOn time
Monday4553%
Tuesday4470%
Wednesday4578%
Thursday4560%
Friday4762%
Saturday17—
Sunday4657%

Why it was late

Late inbound plane 51%Airline (crew, maintenance, ops) 30%Air traffic & airport (NAS) 10%Severe weather 9%

All flights ORD → CLE · Connecting off UA 1641? Check the risk

Questions

How often is UA 1641 from ORD to CLE late?

United Airlines 1641 from Chicago, IL to Cleveland, OH arrived 15 or more minutes late, was diverted or was cancelled on 38% of 289 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.