AA 165 then BC 943 at Haneda
Los Angeles → Tokyo → Sapporo
Timetable, Tokyo time
05:05AA 165 from Los Angeles at the gate
11:05BC 943 to Sapporo leaves the gate
6 h apart on the timetable
The last days
AA 165 and BC 943 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.