I perused the FAQ in this sub forum an didnt see what I was looking for. I suppose I am just looking for other travelers opinions on this matter. My wife and I will be traveling from Denver to Chicago then down to Atlanta. Prices for tickets in the month we need to go are quite pricey. I can save about 600$ if I put our child as a lap child. The problem is she will be 2 years old and about 4 months and I see on the web site Uniteds cut off says 2yrs old. She is very small for her age though compared to other children. I guess my question is will United want proof she is in fact less then 2yrs old? What would some of you other parents do. Money is kinda tight but my sister is getting married and we all need to get there for her big day. Advice?