Originally Posted by kaku_jinbutsu

My apologies in advance if this has been answered elsewhere. I did a cursory search but couldn’t fine the answer. I have a mixed cabin itinerary coming up: NRT-YYZ in premium economy followed by a connecting flight in business YYZ-EWR. May I use the business class check in line at Narita or should I queue with the economy class passengers? Many thanks for the guidance.