Jessica Simpson and her estranged husband Eric Johnson have been spotted traveling together to Las Vegas. In photos published by multiple outlets including TMZ and Page Six on Friday, August 29, the former couple were photographed boarding a Southwest Airlines flight from Burbank to Las Vegas. Photos showed Simpson and Johnson, both 45, sitting in the same row during the flight with a middle seat left empty between them. Their kids did not appear to be traveling with their parents for the trip. (Simpson and Johnson share Maxwell, 13, Ace, 12, and Birdie, 6.