Brussels – Zaventem Airport
This is Belgium’s main airport (IATA code BRU). The airport is the base of the national airline Brussels Airlines. Other full-service airlines use BRU, as well as budget carriers such as Vueling, JetairFly and Thomas Cook.
Brussels South Charleroi Airport
(IATA code CRL), about 50km south of Brussels, mostly serves low-cost carriers, such as Ryanair and Wizzair. You can get to Brussels Gare du Midi on a coach in about an hour (€13 one way, €22 return). If you’re going to any other part of Belgium, buy a combination bus+train ticket via Charleroi Sud train station from the TEC vending machines outside the airport for at most €19.40 one-way.
Antwerp International Airport:
(IATA code ANR) located in Deurne, about 4km’s from Antwerp city.
Cityjet offers daily flights to London City Airport. TUIFly offers flights to Barcelona, Murcia, Nador, Alicante, Ibiza, Mallaga, Mallorca and Split.
Ostend-Bruges international airport:
(IATA code OST).
Cityjet charters flights to various locations in Spain, Greece and Turkey