MCT in Melbourne from Domestic (Int Terminal) to Domestic I am planing to arrive into Melbourne on a Jetstar flight from Sydney that arrives at the international terminal at 2pm a

MCT in Melbourne from Domestic (Int Terminal) to Domestic

I am planing to arrive into Melbourne on a Jetstar flight from Sydney that arrives at the international terminal at 2pm and then depart on a normal Jetstar Domestic flight at 2:50pm

Is this too short or would I be able to make the connection?

If they're on separate tickets, it's definitely too tight.

Yeh its not possible to book them on one ticket due to MCT being 90 minutes but that is becasue JQ flight arrives at INT terminal the booking system thinks it is an INT flight and hence the 90 minutes MCT whereas MCT should only be 60 minutes

Watson have you done the JQ Domestic flights from INT terminal to INT termian before - If so how hard is it to get out of customs?

Having the flights on seperate tickets can be a risk when considering that international flight arrival times are at best a guide. If on one ticket, any delay is the airline's issue, if on split tickets, any delay is your issue. Travel Insurance doesn't even provide much coverage with generally six hours required between flights to make it their problem.

Any hiccup and you could have to buy an expensive last minute ticket home. That said, if you don't mind the risk, it can avoid lengthy waiting around terminals if all things go to plan.

Technically this isn't a connection. And MCT is a term used to refer to the minimum time that ticket issuers need to allow between flights for itineraries to be considered permissable to ticket, not for passengers on separate tickets. For reference, JQ's MCT at MEL for D-D is 90 minutes. I-D is 120 minutes.

Discounting the 15 min cutoff time for boarding, you'll be left with 35 minutes that may only be adequate with no baggage and if you are willing to hedge on the SYD-MEL flight arriving on time. 

I wouldn't bother risking it. Surely there's another four or five SYD-MEL flights that hour?

Unless you're just doing it for lounge access purposes, in which case... hey, you know what you're doing. 

I am coming home from Sydney to Brisbane and am thinking of going via MEL and give both the SYD First Class Lounge and the JQ dreamliner a go

I would be using Point and wanted to get home as soon as possible 

The next JQ depature back to BNE from MEL is at 2:50pm (yes there are other flights but I want to use as little points as needed)