AS 615 then AS 1532 at Seattle
St Louis → Seattle → Nashville
Timetable, Seattle time
08:36AS 615 from St Louis at the gate
09:27AS 1532 to Nashville leaves the gate
51 min apart on the timetable
Seattle’s board gives a departure time for only about 56% of its flights, so many days show no gate time.
The last days
AS 615 and AS 1532 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.