ON TIMEBOARD

UA 2124 on time

United Airlines 2124: Houston to Chicago at 9:35 a.m.; New Orleans to Houston at 7:00 a.m. (past 12 months). Figures below the title are for IAH → ORD, its busiest leg

On time
85%
349 flights · likely 80–88%
Cancelled
0.0%
of scheduled flights
Typical arrival
−11 min
median vs schedule
When late
+65 min
average delay
Similar flights
86%
UA, same route & hour

About 1 in 6 UA 2124 flights from Houston arrived 15+ minutes late, diverted or cancelled over the past year (15%); 0.0% were cancelled. The typical flight landed 11 minutes early.

UA 2124: IAH → ORD

Scheduled to leave Houston at 9:35 a.m. local time. Over the past year it arrived on time 85% of the time (349 flights), in line with other UA flights on the route at that hour (86%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 90% on time (30 flights)90SepOct 2025: 94% on time (31 flights)94OctNov 2025: 83% on time (30 flights)83NovDec 2025: 87% on time (15 flights)87DecJan 2026: 87% on time (31 flights)87JanFeb 2026: 89% on time (28 flights)89FebMar 2026: 71% on time (31 flights)71MarApr 2026: 87% on time (30 flights)87AprMay 2026: 81% on time (31 flights)81MayJun 2026: 80% on time (30 flights)80JunJul 2026: 81% on time (31 flights)81JulAug 2026: 87% on time (31 flights)87Aug

By day of week

DayFlightsOn time
Monday5182%
Tuesday4988%
Wednesday4982%
Thursday5092%
Friday5082%
Saturday5086%
Sunday5080%

Why it was late

Air traffic & airport (NAS) 68%Airline (crew, maintenance, ops) 15%Late inbound plane 14%Severe weather 3%

All flights IAH → ORD · Connecting off UA 2124? Check the risk

UA 2124: MSY → IAH

Scheduled to leave New Orleans at 7:00 a.m. local time. Over the past year it arrived on time 72% of the time (180 flights), worse than other UA flights on the route at that hour (79%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Mar 2026: 63% on time (27 flights)63MarApr 2026: 77% on time (30 flights)77AprMay 2026: 58% on time (31 flights)58MayJun 2026: 70% on time (30 flights)70JunJul 2026: 84% on time (31 flights)84JulAug 2026: 81% on time (31 flights)81Aug

By day of week

DayFlightsOn time
Monday2677%
Tuesday2580%
Wednesday2580%
Thursday2677%
Friday2673%
Saturday2658%
Sunday2662%

Why it was late

Air traffic & airport (NAS) 51%Airline (crew, maintenance, ops) 36%Severe weather 6%Late inbound plane 6%

All flights MSY → IAH · Connecting off UA 2124? Check the risk

Questions

How often is UA 2124 from IAH to ORD late?

United Airlines 2124 from Houston, TX to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 15% of 349 scheduled flights between September 2025 and August 2026. 0.0% were cancelled.

How often is UA 2124 from MSY to IAH late?

United Airlines 2124 from New Orleans, LA to Houston, TX arrived 15 or more minutes late, was diverted or was cancelled on 28% of 180 scheduled flights between September 2025 and August 2026. 0.6% 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.