AV 368 then UA 3907 at Houston
Santa Clara → Houston → Chicago
Timetable, Houston time
11:05AV 368 from Santa Clara at the gate
12:00UA 3907 to Chicago leaves the gate
55 min apart on the timetable
The last days
AV 368 and UA 3907 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.