Airports
Belgium has two international airports, the main one being Zaventem, 14km north-east of Brussels. The other one, Deurne, is close to Antwerp and has less frequent flights to Amsterdam, London, Liverpool and Dublin only. Depending on when you leave, flights to London can be cheaper from Deurne.
Public transport
If you're in Europe already, a bus or train is the best option. Eurolines and Hoverspeed Citysprint operate international bus services to and from Belgium. Belgium Railways has frequent international services. Brussels has three main stations and is the central hub, with lines in all directions. Two companies operate car/passenger ferries to and from Britain: North Sea Ferries (overnight from Zeebrugge to Hull) and Oostende Lines/Sally Ferries (six boats daily between Ostend and Ramsgate).
Transportation within Belgium:
Air
No domestic air transportation is available; trains are suggested.
Public transportation
Trams and Buses available in all major cities - Buses connecting cities are available but not recommended.
Subway
Is available only in Brussels. There is a standard flat-fare system ( single ticket Eur 1,40), with discounts for 5-journey (Eur 6,30) and 10-journey (Eur 9.20), One-day travelcard (valid to midnight - Eur 3,70) and multi-mode tourist travelcards. All are available at various metro stations and newspaper kiosks.
Taxis
Are available at Taxi stands or at entrance of hotels. The price of the trip is displayed on the meter, including the service charge.
Train
A dense train network connects all of Belgium. National and international passes are available at major train stations in Belgium. Seat reservations are not available on Belgian trains (except for groups).