How long is it from Boston to jonesport Maine?

From Solisbury Beach Massachusetts to Kittery Maine on Interstate Route 95 is 22 minutes.

One hour at about 75 to 80 and no major traffic.

By car, about two hours from Boston to Portland . It take longer to get from Portland to the most northern parts of Maine that it does to drive from Portland to New York City.

Less than 3hrs

3.5 to 4 hrs depending on traffic. can take longer if weather is bad or you are a slow driver, or not going there on the highway (which would be weird)