I just traveled from Florida (American Airlines) to California, then to Australia (Qantas), then to my final destination on Jetstar (I cannot recommend this airline, one of those code share type deals). I went through three security checkpoints during this trip with my Mavic packed in a small backpack as carry on with four spare batteries and the controller... that backpack itself was packed inside a bigger backpack. Nobody batted an eyelid, straight on through!