Seoul has an extensive subway network. Lines 1, 2, 4, and the Sinbundang Line serve most major tourist and business areas.

Seoul National University is served by Subway Line 2 (Seoul National University Station) and by on-campus shuttle buses.

Taxis and ride-hailing apps (Kakao T) are widely available across the city.

The AREX (Airport Railroad Express) connects Incheon International Airport to Seoul Station in approximately 43 minutes (direct)
or 51 minutes (all-stop).