What is the longest plane flight you have been on? in The Chat Board Posted April 17, 2018 · Report reply I don't remember. I've blocked it out. Lol. Seattle to San Francisco, SF to Seoul, Seoul to Beijing. We got to our hostel and napped. When our host came to wake us for dinner, I couldn't rouse my traveling companion. Host was very concerned that she was ill and wanted to call a doctor. I convinced him that she was just tired, and we left her while we ate. She missed the pickled pigs ears and little packages of pigeon meat. I claimed to be vegetarian because I'm a wimp. Lol.