UA 2009 then UA 5317 at Houston
Las Vegas → Houston → Nashville
Timetable, Houston time
05:55UA 2009 from Las Vegas at the gate
09:50UA 5317 to Nashville leaves the gate
3 h 55 apart on the timetable
Today
From the airport’s board at 11:23 Houston time
05:45UA 2009 reached the gate10 min early
09:46UA 5317 left the gate4 min early
4 h 01 between the gates
The last days
UA 2009 and UA 5317 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.