Can I obtain a single re-entry permit for my non-O visa at the local immigration office before my flight?

Yes, you can obtain a single re-entry permit for a non-O visa at your local immigration office a few days before your departure. You will need to bring the necessary documents such as a photo, a copy of your visa, a copy of your entry stamp, a copy of your biodata page from your passport, and you can do this anytime before flying out. Alternatively, you can also get the permit at the airport, but it may incur an extra fee.