The departure hall at Zaventem airport was badly damaged when two attackers set off their bombs on March 22 and the airport this week started tests for a temporary check-in system.
"Brussels Airport Company has received the go ahead from the fire services and the Belgian Civil Aviation Authority for a partial restart of passenger flights at the airport," the airport said in a statement today.
"The airport is thus technically ready for a restart of passenger flights in the temporary infrastructure foreseen for check-in," it added.
The temporary arrangements set up outside the departure hall would be able to handle 800 departing passengers per hour, around 20 per cent of the airport's normal capacity, it said.
Arriving passengers will go through the usual baggage reclaim and arrivals area in the terminal as it was "only slightly damaged and has since been restored for use", the airport added.