ON TIMEBOARD

UA 1946 on time

United Airlines 1946: Los Angeles to Chicago at 8:15 a.m.; Chicago to Pittsburgh at 6:05 p.m. (past 12 months). Figures below the title are for LAX → ORD, its busiest leg

On time
82%
364 flights · likely 78–86%
Cancelled
1.4%
of scheduled flights
Typical arrival
−10 min
median vs schedule
When late
+73 min
average delay
Similar flights
82%
UA, same route & hour

About 1 in 6 UA 1946 flights from Los Angeles arrived 15+ minutes late, diverted or cancelled over the past year (18%); 1.4% were cancelled. The typical flight landed 10 minutes early.

UA 1946: LAX → ORD

Scheduled to leave Los Angeles at 8:15 a.m. local time. Over the past year it arrived on time 82% of the time (364 flights), in line with other UA flights on the route at that hour (82%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 87% on time (30 flights)87SepOct 2025: 90% on time (31 flights)90OctNov 2025: 76% on time (29 flights)76NovDec 2025: 87% on time (31 flights)87DecJan 2026: 74% on time (31 flights)74JanFeb 2026: 96% on time (28 flights)96FebMar 2026: 77% on time (31 flights)77MarApr 2026: 67% on time (30 flights)67AprMay 2026: 84% on time (31 flights)84MayJun 2026: 93% on time (30 flights)93JunJul 2026: 84% on time (31 flights)84JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday5377%
Tuesday5287%
Wednesday5290%
Thursday5182%
Friday5279%
Saturday5285%
Sunday5277%

Why it was late

Air traffic & airport (NAS) 57%Late inbound plane 24%Airline (crew, maintenance, ops) 19%

All flights LAX → ORD · Connecting off UA 1946? Check the risk

UA 1946: ORD → PIT

Scheduled to leave Chicago at 6:05 p.m. local time. Over the past year it arrived on time 58% of the time (179 flights), in line with other UA flights on the route at that hour (61%). Last seen in the data Aug 31, 2026.

Month by month

30%65%100%Mar 2026: 56% on time (27 flights)56MarApr 2026: 57% on time (30 flights)57AprMay 2026: 84% on time (31 flights)84MayJun 2026: 57% on time (30 flights)57JunJul 2026: 53% on time (30 flights)53JulAug 2026: 42% on time (31 flights)42Aug

By day of week

DayFlightsOn time
Monday2650%
Tuesday2560%
Wednesday2552%
Thursday2650%
Friday2669%
Saturday2564%
Sunday2662%

Why it was late

Late inbound plane 55%Airline (crew, maintenance, ops) 21%Air traffic & airport (NAS) 15%Severe weather 9%

All flights ORD → PIT · Connecting off UA 1946? Check the risk

Questions

How often is UA 1946 from LAX to ORD late?

United Airlines 1946 from Los Angeles, CA to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 18% of 364 scheduled flights between September 2025 and August 2026. 1.4% were cancelled.

How often is UA 1946 from ORD to PIT late?

United Airlines 1946 from Chicago, IL to Pittsburgh, PA arrived 15 or more minutes late, was diverted or was cancelled on 42% of 179 scheduled flights between September 2025 and August 2026. 1.7% 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.