UA1129 PIT → ORD

United Airlines · Pittsburgh, PA to Chicago, IL · 30 flights observed, 2025-07-01 to 2025-07-31 · 413 mi

This flight has been on time less than half the time (33%) — expect a real chance of a delay.

UA1129 covers more than one route in the data window — the stats below are for PIT → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
33%
Median delay
+21 min
90th percentile
+152 min
Cancellation rate
0%

How often is UA1129 on time?

Across 30 flights on PIT → ORD from 2025-07-01 to 2025-07-31, UA1129 arrived within 15 minutes of schedule 33% of the time. The median arrival delay was +21 min, and the worst 10% of flights arrived +152 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time1033%
16-30 min723%
31-60 min517%
61-120 min310%
2+ hrs517%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073033%+77 min

Performance by day of week

DayFlightsOn-time
Mon425%
Tue560%
Wed540%
Thu520%
Fri30%
Sat450%
Sun425%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…