I hadn't looked at the CX ORD-HKG flight.

Both flights are pretty shabby when it comes to on-time performance.

But there are some significant differences between the two. The flightstats.com statistics about UA895 look a lot worse that the CX flight.

The standard deviation for UA895 (79.52 min) is much larger than CX807 (65.95 min). Meaning that when UA895 is late, it tends to be much later.