ON TIMEBOARD

UA 2683 on time

United Airlines 2683: Chicago to San Diego at 1:00 p.m.; Orlando to Chicago at 9:40 a.m. (past 12 months). Figures below the title are for ORD → SAN, its busiest leg

On time
78%
311 flights · likely 74–83%
Cancelled
0.3%
of scheduled flights
Typical arrival
−7 min
median vs schedule
When late
+61 min
average delay
Similar flights
79%
UA, same route & hour

About 1 in 5 UA 2683 flights from Chicago arrived 15+ minutes late, diverted or cancelled over the past year (22%); 0.3% were cancelled. The typical flight landed 7 minutes early.

UA 2683: ORD → SAN

Scheduled to leave Chicago at 1:00 p.m. local time. Over the past year it arrived on time 78% of the time (311 flights), in line with other UA flights on the route at that hour (79%). Last seen in the data Aug 10, 2026.

Month by month

40%70%100%Sep 2025: 73% on time (30 flights)73SepOct 2025: 87% on time (31 flights)87OctNov 2025: 77% on time (30 flights)77NovDec 2025: 77% on time (30 flights)77DecJan 2026: 77% on time (31 flights)77JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 79% on time (28 flights)79MarApr 2026: too few flights (1 flights)AprMay 2026: 81% on time (31 flights)81MayJun 2026: 83% on time (30 flights)83JunJul 2026: 81% on time (31 flights)81JulAug 2026: too few flights (10 flights)Aug

By day of week

DayFlightsOn time
Monday4569%
Tuesday4477%
Wednesday4484%
Thursday4473%
Friday4576%
Saturday4589%
Sunday4482%

Why it was late

Late inbound plane 37%Air traffic & airport (NAS) 28%Airline (crew, maintenance, ops) 25%Severe weather 11%

All flights ORD → SAN · Connecting off UA 2683? Check the risk

UA 2683: MCO → ORD

Scheduled to leave Orlando at 9:40 a.m. local time. Over the past year it arrived on time 86% of the time (128 flights), in line with other UA flights on the route at that hour (84%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Apr 2026: too few flights (5 flights)AprMay 2026: 90% on time (31 flights)90MayJun 2026: 93% on time (30 flights)93JunJul 2026: 94% on time (31 flights)94JulAug 2026: 65% on time (31 flights)65Aug

By day of week

DayFlightsOn time
Monday18—
Tuesday17—
Wednesday17—
Thursday18—
Friday18—
Saturday2295%
Sunday18—

Why it was late

Air traffic & airport (NAS) 50%Airline (crew, maintenance, ops) 25%Late inbound plane 25%

All flights MCO → ORD · Connecting off UA 2683? Check the risk

Questions

How often is UA 2683 from ORD to SAN late?

United Airlines 2683 from Chicago, IL to San Diego, CA arrived 15 or more minutes late, was diverted or was cancelled on 22% of 311 scheduled flights between September 2025 and August 2026. 0.3% were cancelled.

How often is UA 2683 from MCO to ORD late?

United Airlines 2683 from Orlando, FL to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 14% of 128 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.