UA 4523 then UA 6094 at Houston
Huntsville → Houston → Denver
Timetable, Houston time
08:40UA 4523 from Huntsville at the gate
14:11UA 6094 to Denver leaves the gate
5 h 31 apart on the timetable
Today
From the airport’s board at 10:55 Houston time
08:40UA 4523 is cancelled
14:11UA 6094 is cancelled
The last days
UA 4523 and UA 6094 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.