Hopefully this makes sense because I just discovered it and you have to have a little control over the mouse.
Click and drag from the BOTTOM of your plan (starting at the line that says "powered by Dark Sky" going up to highlight only to the title of your trip. Once you have that it should look something like this:
With it highlighted, right click with your mouse and select print. You will then end up with a page that looks like this:
Not the most efficient but I think that's the only way without printing all the other stuff or screenshot.