ON TIMEBOARD

UA 1491 on time

United Airlines 1491: Kansas City to Chicago at 8:00 a.m. (past 12 months)

On time
82%
276 flights · likely 77–86%
Cancelled
1.5%
of scheduled flights
Typical arrival
−6 min
median vs schedule
When late
+52 min
average delay
Similar flights
83%
UA, same route & hour

About 1 in 6 UA 1491 flights from Kansas City arrived 15+ minutes late, diverted or cancelled over the past year (18%); 1.5% were cancelled. The typical flight landed 6 minutes early.

UA 1491: MCI → ORD

Scheduled to leave Kansas City at 8:00 a.m. local time. Over the past year it arrived on time 82% of the time (276 flights), in line with other UA flights on the route at that hour (83%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Aug 2025: 87% on time (31 flights)87AugSep 2025: 97% on time (30 flights)97SepOct 2025: 72% on time (25 flights)72OctDec 2025: 80% on time (15 flights)80DecJan 2026: 73% on time (26 flights)73JanFeb 2026: 93% on time (28 flights)93FebMar 2026: 68% on time (28 flights)68MarApr 2026: too few flights (1 flights)AprMay 2026: 84% on time (31 flights)84MayJun 2026: 90% on time (30 flights)90JunJul 2026: 87% on time (31 flights)87JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday3985%
Tuesday3992%
Wednesday4090%
Thursday4085%
Friday4070%
Saturday4083%
Sunday3871%

Why it was late

Air traffic & airport (NAS) 80%Airline (crew, maintenance, ops) 19%Severe weather 1%

All flights MCI → ORD · Connecting off UA 1491? Check the risk

Questions

How often is UA 1491 from MCI to ORD late?

United Airlines 1491 from Kansas City, MO to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 18% of 276 scheduled flights between September 2025 and August 2026. 1.5% 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.