The nearest airport is in Amsterdam Airport Schiphol (AMS), located 24 mi (38.6 km) from the city center. If you're unable to find a flight that fits your schedule, you can also fly into Rotterdam (RTM-Rotterdam The Hague), which is 7.5 mi (12 km) away.
If you'd rather travel by train, make your way to The Hague Ypenburg Station or Voorburg Station to see more of the city.