Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Cairns to Brussels as you normally would.
For a flight from Cairns to Brussels, you will be flying from Cairns. Cairns (CNS) is just 4.4 km from the centre of the city. Cairns is the only Cairns airport and it handles 0 outbound flights to Brussels per day. 2 airlines have flights to Brussels from Cairns on a regular basis.
Some of the carriers operating flights from Cairns to Brussels that may be offering flexible cancellation policies are Singapore Airlines and Virgin Australia. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.