Domestic to International transfer times in Brisbane

[elanshin]

I have SQ265 PE award as family of 4 arriving at BNE on 16:55 on a Saturday in January. Last flight out of BNE to SYD is QF557 departing 19:05. Should I buy the QF ticket for this flight? Or I should just stay overnight in an hotel and catch domestic flight on Sunday morning?

Should be ok unless your inbound is delayed.

Last time we were tight, bag drop just told us to take our suitcases onto the transfer bus and drop at domestic (or train if thats the route). Faster than what they can do at Int'l.

That was at around 65 mins before flight. We got to dom terminal 15mins later and had plenty of time to bag drop and calmly walk to the gate.