There is a bus that drops off at state line, on it's way to the resort. However, it is not STA.
To my knowledge, here is no direct connection from Spokane to Post Falls. However, you can take the 74 bus route/line to Appleway @ Meadowood Ln. then take the taxi to Post Falls. Beyond that, I don't know any more. The times for that route are on the STA website.
The bus 74 Express goes to Liberty Lake. Times are on sta website and it only runs on weekdays.
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