Pack warm layers—light sweater, insulated jacket, and a compact umbrella—for Seoul’s cool November weather, and include comfortable shoes for walking historic neighborhoods. For the 16–17 hour time change from Los Angeles International Airport (LAX) to Incheon International Airport (ICN), start adjusting sleep times a few days before departure, stay hydrated on the 12+ hour flight, and use daylight exposure to reset your circadian rhythm on arrival. Keep printed and digital copies of travel documents, buy travel insurance for weather or holiday disruptions, and consider an eSIM or local SIM card picked up at ICN arrivals for immediate data access. CTA: Download a November packing checklist and set reminders for your LAX to ICN trip.