Where will you be coming from? Nearly all of the hotels etc. for the airport aren't next to the airport, and they are all on Tower Road just south of Pena Blvd (the road that goes to the airport). I frequently park in that area around 71st and Tower while waiting to pick someone up and I think it would be easy enough for a truck and travel trailer to navigate through there and it's not scary or anything, so no issue with your friends waiting for their ride. Tower is 2 lanes each way with a divided median. The whole area is pretty new so there aren't any large trees or anything to get in the way of your trailer :)