I have flown a number of times before with Miko but mostly we used American or United. We are now going to Miami, Fl (to visit my parents) and then Nashville (back to school) in June and this time we are traveling on Delta. Delta only charges $50 one way to have Miko in the cabin. Isn't that cheap? I have paid $75-80 one way before. Since they don't require health certificate I am considering not getting it. Has anyone flew before and not had the health certificate? Thanks!!