Hello, I'm still new to this forum and any help would be appreciated. I purchased a flight on impulse today LAX -> CPH (Copenhagen, Denmark - $500!) via AirBerlin and there is a layover in DUS (Dusseldorf, Germany). If I don't check in any bags, would it be possible to ditch the connecting flight and get off at Dusseldorf without incurring any penalties or fees? So technically my flight would be LAX -> DUS then make my way to Copenhagen for the return flight CPH -> LAX Thanks!