UA 6088 then Y4 4321 at Houston
Denver → Houston → Santa Clara
Timetable, Houston time
10:45UA 6088 from Denver at the gate
14:47Y4 4321 to Santa Clara leaves the gate
4 h 02 apart on the timetable
The last days
UA 6088 and Y4 4321 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.