The cheapest flight to Brussels you can get by boooking 4 days before departure.
The most popular airlines on the route Helsinki - Brussels: Lufthansa (LH), Air Baltic (BT), Ukraine International (PS).
The cheapest flights you can book on the route Vantaa (HEL) - Brussels Intl Airport (BRU).
There is no direct flight on the route from Helsinki to Brussels
Il volo con scalo più breve dura 7h 45min.