New flights from Seoul 2026 are set to transform Incheon International Airport into an even stronger global hub. United Airlines, Virgin Atlantic, Air Premia, Alaska Airlines, Sun PhuQuoc Airways, and Asiana Airlines are launching or expanding routes connecting Seoul with cities like New York, London, Seattle, Milan, Washington D.C., Bangkok, and Phu Quoc. The expansion boosts tourism, business travel, and Seoul’s role as a key gateway between Asia, Europe, and the Americas.