I know this route and have flown it often, although my final destination is not Detroit. I am a newbie too, but as many of the experienced FT people above recommend, don't do this. If you purchased your ticket yesterday, you have 24 hours to cancel. Cancel it and rebook. I looked at some fares for the route you want and, of course it depends on when you want to fly but, the fare is 491 and up. Book a round trip and be safe.