Where to buy a SIM card in Australia

The supermarket is the answer

Australia has one of the easiest physical SIM situations in the world for visitors. No ID is required — it is an instant purchase — the SIMs are everywhere, and they are cheap.

The best place to buy one is a supermarket. Woolworths and Coles both stock prepaid Telstra, Optus and Vodafone kits in the mobile phone aisle, at the lowest prices in the country, with no staff interaction needed. Most stores are open roughly 7am to 10pm. A basic kit with enough data for a week runs about $10–15, sometimes less.

That is the whole recommendation. If you are in an Australian city for more than a night, walk into a Woolworths or a Coles, pick a kit off the hook, and pay at the self-checkout.

What the alternatives cost

The airport premium is real but modest — a few dollars for the convenience of walking off a plane and straight to a desk. That is a fair trade if you need a ride booked immediately. It is not a trade worth making on day three.

One caveat we should state plainly: we hold the prices above but not the data allowances behind them, and Australian prepaid kits change their inclusions with every promotional cycle. Read the pack.

Airports: which carrier is where

Worth knowing before you land, because the three main gateways differ.

Sydney (SYD) has Telstra, Optus and Vodafone counters in the international arrivals hall. Queues run 10–15 minutes. Telstra's desk closes around 8:30pm, so a late arrival wanting Telstra will have to fall back on Optus or the limited vending options.

Melbourne (MEL) has a Telstra/Optus/Vodafone kiosk in arrivals, 10–12 minutes at peak. There is no direct train to the city, so you will need the Skybus or a taxi or rideshare — sort the SIM out before you exit the terminal so you can book the ride.

Brisbane (BNE) has Optus and Vodafone but no Telstra counter. If you are going beyond Brisbane — the Whitsundays, Cairns, rural stretches inland of the Gold Coast — get a Telstra SIM from a supermarket once you are in the city.

Full terminal-level detail is on our Australian airport SIM guide.

Carrier stores are for questions, not savings

Telstra, Optus and Vodafone all run shops in Australian shopping centres. Full selection, staff who can answer things, no appointment needed for prepaid.

Use one if you have a specific requirement — a plan structure you want explained, a device problem, a port-in. For simply getting online, the same SIM is cheaper two shops down in the supermarket.

Boost Mobile is also sold as a prepaid brand in Australia. We do not hold pricing for it.

Or buy nothing here at all

An eSIM installs before you fly and is live on landing. The cheapest we hold for Australia is $3.99 for 1 GB over 7 days from Saily, read from its own site on 16 August 2026, with Airalo's 1 GB over 3 days verified at $4.00 on 13 August 2026.

At the other end of the ladder, Airalo's verified 50 GB over 30 days at $45 works out at $0.90 a gigabyte — comfortably the cheapest per-gigabyte rate in the Australian data, and worth checking before you assume the small plan is the frugal choice.

The one thing an eSIM cannot do here is guarantee you a particular network. Not one of the six providers we track publishes which Australian carrier its plans roam onto, so "make sure you get Telstra" is advice you cannot act on at an eSIM checkout. If your itinerary depends on Telstra's rural reach, buy a Telstra kit from the supermarket and be done with it.

Provider-by-provider pricing is on the Australia hub, and if you are not sure your handset takes an eSIM, check eSIM compatible phones first.