The last schedule was published for 10/1/2019 - 11/15/2019 (and is still available on the website). Google Flights with the calendar window open (when limited to non-stop, Skyteam flights) will give you a quick view of dates a route operates (if it has less than daily service) and lets you quickly switch between dates to see schedules. Many domestic routes will have same schedules weekdays and Sundays (although there can be exceptions - particularly around holidays) and more limited schedules on Saturdays.