Hi, Just wanted to say that if you stay at the hotel suggested by UNECOM.
I don't remember, maybe it was Hampton Inn or something like that. They have a free pick up and drop off from the airport. BUT YOU HAVE TO TELL THEM AHEAD OF TIME. Then you can take a cap to campus. 20-30$ I think.
More complicated option: If you are staying with a host student. You may want to take a cab from the airport to the train station 5-6$ take the train from portland to Saco (~15min-20min, don't know the cost... but can't be more then 5$) and ask for a pick up. Or again take a cab from Saco to UNE campus. Maybe 15$-20$.
I looked into a bus in the past, but there isn't one at all. It is the one thing that I don't like about UNE, being there, getting there and out... you need a car.