ON TIMEBOARD

UA 403 on time

United Airlines 403: Fort Lauderdale to Chicago at 4:20 p.m. (past 12 months)

On time
50%
252 flights · likely 44–56%
Cancelled
0.0%
of scheduled flights
Typical arrival
+14 min
median vs schedule
When late
+87 min
average delay
Similar flights
51%
UA, same route & hour

About 5 in 10 UA 403 flights from Fort Lauderdale arrived 15+ minutes late, diverted or cancelled over the past year (50%); 0.0% were cancelled. The typical flight landed 14 minutes late.

UA 403: FLL → ORD

Scheduled to leave Fort Lauderdale at 4:20 p.m. local time. Over the past year it arrived on time 50% of the time (252 flights), in line with other UA flights on the route at that hour (51%). Last seen in the data Aug 31, 2026.

Month by month

20%60%100%Sep 2025: 62% on time (21 flights)62SepOct 2025: too few flights (6 flights)OctNov 2025: 28% on time (29 flights)28NovDec 2025: too few flights (14 flights)DecJan 2026: too few flights (5 flights)JanFeb 2026: 53% on time (17 flights)53FebMar 2026: too few flights (7 flights)MarApr 2026: 57% on time (30 flights)57AprMay 2026: 58% on time (31 flights)58MayJun 2026: 57% on time (30 flights)57JunJul 2026: 61% on time (31 flights)61JulAug 2026: 42% on time (31 flights)42Aug

By day of week

DayFlightsOn time
Monday3949%
Tuesday3658%
Wednesday3546%
Thursday3546%
Friday3658%
Saturday3358%
Sunday3837%

Why it was late

Air traffic & airport (NAS) 39%Late inbound plane 32%Airline (crew, maintenance, ops) 27%Severe weather 2%

All flights FLL → ORD · Connecting off UA 403? Check the risk

Questions

How often is UA 403 from FLL to ORD late?

United Airlines 403 from Fort Lauderdale, FL to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 50% 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.