AS 377 then AS 734 at Seattle
Atlanta → Seattle → Las Vegas
Timetable, Seattle time
09:30AS 377 from Atlanta at the gate
12:20AS 734 to Las Vegas leaves the gate
2 h 50 apart on the timetable
Seattle’s board gives a departure time for only about 57% of its flights, so many days show no gate time.
The last days
AS 377 and AS 734 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.