Ok, so Im visting family & have a plane change in Milk... I've never changed planes before so I dont really know what to do or how it works, & I'll be be myself so I've very nervous. I only have 30 mins.. How does this work? I just get off my original plane & find the new flight & the new airport? Do i have to do all the security checks again? Will I have to have a seperate boarding pass?.. & If I have checked luggage it SHOULD just show up in my ending destination right?....