I am flying with Korean Air tomorrow. I'm going from Kansai Airport in Japan to Seoul and getting a connecting flight from there to the USA. Korean Air lets you do online check-in but I don't have a printer....so should I check in online anyway? Will it make any difference if I can't print anything? And if I get to the airport without anything but my flight number and confirmation number written down on a piece of paper (and my passport and visa, obviously) will I be alright?
Sorry if these questions seem kind of stupid...I've always checked in online and printed before so I just want to make sure everything goes smoothly.