some airlines charge a roudtrip child ticket if it turns 2 in middle of the flight. so check with your airline.... As they will only be able to issue the infant ticket for the roundtrip and its older then 2 for part of it, it cant be done
they told me when i called FB that if the infant will turn 2 b4 the return they will need to change my infant ticket to a childs ticket and i will have to pay the difference.. never tried it though...
Right, but a oneway child ticket is more than a RT Adult with FB miles