AS 3344 then AS 1834 at Seattle
Salt Lake City → Seattle → Las Vegas
Timetable, Seattle time
08:30AS 3344 from Salt Lake City at the gate
16:50AS 1834 to Las Vegas leaves the gate
8 h 20 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 3344 and AS 1834 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.