We used uber or walked didnt see a shuttle
Don't know about shuttle bus, but saw taxis at the motel. The St. Louis Metro train station is about a 5 minute walk, and it goes to the airport, about a 25 min ride.
They have one small shuttle bus. I only saw it as an option to and from Busch stadium. This is really a question for the front desk, their number is listed. Good luck.
No. You can take uber.
Thanks! Your answer is awaiting moderation.