Moderator: Information Desk, Women Travelers, FlyerTalk Evangelist
Join Date: Jul 2003
Location: Chicago, IL, USA
Programs: AA Gold
Posts: 15,655
I think it's unlikely that Sunday will be a busier than normal travel day. People who are taking a long weekend are more likely to fly Friday night or Saturday morning and again on Tuesday.
Generally speaking, I don't feel as if 4th of July has a reputation for being "nightmarish" in respect to travel. Thanksgiving, Christmas, New Year's and spring break time all seem to be much worse. (I've flown on all of those and on 4th of July weekend. And every other holiday under the sun.)