One thing to note about DART is that there is rail construction going on for various routes on specific lines (red, green, blue, orange, etc). There is a link on the DART page that indicates what will be under construction when. Plan your travel time accordingly. I was looking into using DART myself from Dallas Love Field to the hotel, but would take almost 2hrs and I have a meeting that I need to be at so I will have to use another mode of transportation.