I'm not sure if you're allowed to ride the Flix bus without an ID
You should call Flixbus. You shouldn't travel without ID. I don't go anywhere without my ID.
GM when we board we give our name and they locate us by name. Download the flixbus app. Right now lowest is 19.99 the closer you buy to the date you are leaving the more expensive in most cases.
To answer these questions you should probably call flixbus
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