Fly into Brussels Airport (BRU), the closest airport, located 3.8 mi (6.1 km) from the city center. If you're unable to find a flight that fits your schedule, you might consider flying into Charleroi (CRL-Brussels South Charleroi), which is 28.5 mi (45.8 km) away.
If you'd rather travel by train, make your way to Evere Station or Bordet Station and explore the city from there. It's easy to get around Evere by jumping on the metro at Lekaerts Tram Stop, Evere Shopping Tram Stop or Da Vinci Tram Stop.