How to check in luggage for transfer at Singapore Airport?

Checked baggage can be sent directly to Melbourne. As long as you tell the counter when checking in your baggage domestically that you are connecting, Singapore Airlines will send your baggage directly to your final destination.

If you hold a valid Australian visa and are transiting in Singapore, there is no problem in entering the country to go to the city. However, you have to calculate the time carefully. Six hours is very tight, so don’t miss your flight.

You can also take a free city tour and apply at Terminal 2 of the airport.

Supplement:

If you want to take your luggage out in Singapore, it may be more troublesome. Whether this is possible depends on Singapore Airlines' regulations. It is best to call your local Singapore Airlines office for consultation.