How can i go from New Haven CT to Hartford CT?

I'm trying to catch a bus that is in Hartford. I want to get to Boston. But I have a limited amount of money that's why I have to go all the way to Hartford to catch the most affordable bus. I wanna know how I can get from New Haven CT , to Hartford CT. If anyone would help I would appreciate it so much. Especially if you want to include your details about getting from New Haven CT to Boston MA.