Helena to Denver via Seattle
3 connections on the timetable in the last 7 days, each with its time between the gates on up to 10 days, to Sat 7 Nov. Find yours by its times.
Seattle’s board gives a departure time for only about 57% of its flights, so many days show no gate time.
Between the gates, a bar a day, oldest to latestTimetable
2 more on airlines that aren’t partners
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.