Seoul is primarily served by two international airports:
• Incheon International Airport (ICN)
Incheon International Airport is South Korea's main international aviation hub, located west of Seoul. It handles flights to destinations throughout Asia, Europe, North America, and other regions. Travelers can reach central Seoul using the Airport Railroad Express (AREX), airport limousine buses, taxis, and other transport services.
The AREX express train takes approximately 43 minutes to Seoul Station from Terminal 1 and 51 minutes from Terminal 2. The all-stop train takes approximately 59–66 minutes, depending on the terminal.
• Gimpo International Airport (GMP)
Gimpo International Airport is closer to central Seoul and primarily serves domestic flights, along with selected international routes, particularly within East Asia. It is connected to Seoul's subway system and the airport railway, making it convenient for reaching different parts of the city.
Travelers should check their flight details carefully to confirm which airport they will use.