Well I don't think you'll be able to do that with out folding skiis :-)! What I have done is wrap my skiis and poles with my ski outfit and put all of my clothes that I can fit into a ski bag with my skiisto protect them and check them. I take my ski boots, helmet and toiletries and anything else I need as a carry on. You may also check out just renting a ski package once you get to the resort and just do a carry on with your clothes (and depending on your ski outfit you can even wear it on the flight). It might be cheaper to do that then do pay extra for a checked bag.