We are flying Spirit Airlines to Disney and have never used this airline before. My husband and I are traveling with 2 small children. We don't really care where on the plane we sit, but just don't want the kids sitting alone. We would be ok with the four of us getting split up, either 2 and 2 (adult/child) or adult/2 children and single adult. I really don't want to pay an extra $80+ for preassigned seats an two flights. I have heard 2 conflicting pieces of advice. Check in to the flight right at 24 hours, as you have a better chance of being assigned together. The other advice was not to check in until airport arrival and let the airline reserve for us after explaining the situation. I would think an airline would not want to be responsible for a small child sitting alone. Any advice from experienced Spirit flyers would be GREATLY appreciated!