ON TIMEBOARD
United Airlines / IAH → ORD

UA 2616 on time

United Airlines 2616: Houston to Chicago at 6:30 a.m.; Chicago to Raleigh at 10:48 a.m. (past 12 months). Figures below the title are for IAH → ORD, its busiest leg

On time
86%
363 flights · likely 82–89%
Cancelled
0.8%
of scheduled flights
Typical arrival
−6 min
median vs schedule
When late
+43 min
average delay
Similar flights
86%
UA, same route & hour

About 1 in 7 UA 2616 flights from Houston arrived 15+ minutes late, diverted or cancelled over the past year (14%); 0.8% were cancelled. The typical flight landed 6 minutes early.

UA 2616: IAH → ORD

Scheduled to leave Houston at 6:30 a.m. local time. Over the past year it arrived on time 86% of the time (363 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: 67% on time (30 flights)67NovDec 2025: 83% on time (30 flights)83DecJan 2026: 87% on time (31 flights)87JanFeb 2026: 89% on time (27 flights)89FebMar 2026: 77% on time (31 flights)77MarApr 2026: 87% on time (30 flights)87AprMay 2026: 87% on time (31 flights)87MayJun 2026: 93% on time (30 flights)93JunJul 2026: 87% on time (31 flights)87JulAug 2026: 90% on time (31 flights)90Aug

By day of week

DayFlightsOn time
Monday5383%
Tuesday5290%
Wednesday5190%
Thursday5192%
Friday5292%
Saturday5279%
Sunday5275%

Why it was late

Air traffic & airport (NAS) 68%Airline (crew, maintenance, ops) 27%Late inbound plane 3%Severe weather 2%

All flights IAH → ORD · Connecting off UA 2616? Check the risk

UA 2616: ORD → RDU

Scheduled to leave Chicago at 10:48 a.m. local time. Over the past year it arrived on time 79% of the time (154 flights), in line with 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: too few flights (3 flights)MarApr 2026: 89% on time (28 flights)89AprMay 2026: 77% on time (31 flights)77MayJun 2026: 90% on time (30 flights)90JunJul 2026: 77% on time (31 flights)77JulAug 2026: 68% on time (31 flights)68Aug

By day of week

DayFlightsOn time
Monday2383%
Tuesday2268%
Wednesday2190%
Thursday2282%
Friday2277%
Saturday2176%
Sunday2378%

Why it was late

Late inbound plane 47%Airline (crew, maintenance, ops) 31%Air traffic & airport (NAS) 20%Severe weather 2%

All flights ORD → RDU · Connecting off UA 2616? Check the risk

Questions

How often is UA 2616 from IAH to ORD late?

United Airlines 2616 from Houston, TX to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 14% of 363 scheduled flights between September 2025 and August 2026. 0.8% were cancelled.

How often is UA 2616 from ORD to RDU late?

United Airlines 2616 from Chicago, IL to Raleigh/Durham, NC arrived 15 or more minutes late, was diverted or was cancelled on 21% of 154 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.