CTTransit operates what is called the Bradley Flyer shuttle bus to and from Bradley Airport /Hartford and surrounding areas. Seems to run perfectly on time with friendly drivers. It’s $ 1.75. You can pay with exact change or currency but the bill machine does not give change. It will however much to my surprise accept a $ 2 bill. Have never seen a single money machine in the US that will take a $ 2, but the buses will. They also operate a free shuttle called DASH that runs in a loop of 12 stops from the Connecticut Convention Center to key points all around downtown Hartford. Awesome service funded by the CIty of Hartford.