Departing from Newark Liberty International Airport (EWR) to Incheon International Airport (ICN) in March offers a good balance between lower shoulder-season fares and improving spring weather. Direct service is often available on major carriers, but checking multiple airlines and flexible dates can reveal significant savings. For ground access, use the AirTrain and NJ Transit to Manhattan or consider off-site airport hotels for early departures. Expect moderate security wait times and possible weather-related delays during late winter storms; carry flexible tickets or travel insurance. Nearby major cities commonly accessed from Newark include New York City, Jersey City, and Philadelphia — compare departures from John F. Kennedy International Airport (JFK) and LaGuardia Airport (LGA) to expand your options. Search and book early to secure the best nonstop seats to Seoul.
In March, arrivals at Incheon International Airport (ICN) benefit from efficient immigration and multiple transit options into Seoul and beyond. AREX express trains, airport limousine buses, and taxis connect travelers to central Seoul quickly, while domestic flights from ICN or nearby Gimpo (Gimpo International Airport (GMP)) open routes to Busan and Jeju for earlier spring weather. March's shoulder-season climate means fewer crowds than peak summer; however, check cherry blossom forecasts if your trip targets flower viewing in southern cities. For smooth arrivals, have travel documents and any required K-ETA information ready, purchase local SIM or eSIM services at ICN, and consider the AREX or airport buses for reliable transfers to Seoul and major nearby destinations such as Suwon and Incheon city.