I'm not sure that is a match. In the pit Stop photo, the backbacks on the ground have what appears to be a blue sleeping pad. But I don't see that on their backpacks in the airport photo. Plus, the older person looks female to me. I'm thinking it could be the grandmother/granddaughter, or even the lesbian ladies. But do we have actual evidence that this is the team eliminated on this leg? Couldn't it have been any team checking in?
EDIT: Yes, I would say the younger girl on the mat is the one in kittygoesmeow's airport picture.