According to the travel experts over at Kayak, you should book airfare for Sunday, July 2nd, and fly home on Wednesday, July 5th, with airfare hovering around $200.
Meanwhile, be sure to avoid Thursday, June 29th, or Friday, June 30th, for your outbound flight, and Friday, July 7th, for your return, when airfare averages are around $400.
Interestingly, the same tip applies for Labor Day weekend as it does for July 4th: Kayak advises planning your vacation so you depart on Sunday, Sept. 3rd, and return home on Tuesday, Sept. 5th, to snag a deal for around $171.