eSpeedz Australia eSIM plans start at $8.99 and use the Optus network, which covers the major cities, the east coast and most regional towns. You get a QR code by email in minutes, install it before your flight, and the plan begins when you connect in Australia.
It's a long flight. Step off at Sydney or Melbourne with data already on, message whoever's picking you up, and get your bearings before the jet lag kicks in.
Nobody flies all the way to Australia for a few days. Trips tend to run two or three weeks, often stitching together Sydney, Melbourne, the Great Barrier Reef and maybe a road trip. That's a lot of days on a US carrier's daily roaming pass. A prepaid eSIM gives you one fixed plan for the whole trip.
Here's the honest part about coverage. Optus reaches about 98.5% of Australians, so in the cities, along the east coast and in most regional towns you're well covered. But Australia is enormous and mostly empty, and Optus covers far less land area than Telstra. On long outback drives, like the Stuart Highway between Port Augusta and Alice Springs, you can go hundreds of kilometers with no Optus signal. If a remote road trip is on the cards, download offline maps, carry water, and tell someone your route.
In the cities, data makes things smooth. In Sydney you can tap a contactless card or phone on Opal readers for trains, buses, ferries and light rail without buying a card. Uber and DiDi both operate in the major cities, and Google Maps handles transit routing well. Free public wifi exists in libraries, some city centers and plenty of cafes, but it's not something to build a day around.
Plans run on Optus in Australia. Data-only, prepaid, no contract. Prices in USD.
| Plan | Data | Validity | Price (USD) |
|---|---|---|---|
| Australia 5GB | 5GB | 30 days | $8.99 |
| Australia 10GB | 10GB | 30 days | $15.99 |
| Australia 20GB | 20GB | 30 days | $26.99 |
| Australia 50GB | 50GB | 30 days | $56.99 |
Prices checked October 1, 2026. All prices in USD, one-time payment.
| Network | Optus |
|---|---|
| Phone number | Not included. Data only, your regular number keeps working for calls and texts |
| Validity starts | When the eSIM first connects in Australia, not when you buy or install it |
| Delivery | QR code by email, usually in about 3 minutes |
| Top-ups | Available |
| Phone needed | eSIM-compatible and carrier-unlocked |
Plans run on Optus in Australia. Popular stops for travelers:
A week in Sydney and Melbourne with maps, rideshare and social media usually needs 3GB to 5GB. For two weeks that include the reef, a coastal road trip and streaming in the evenings, 10GB is a comfortable middle ground. Working remotely, tethering a laptop or uploading lots of video? Go for 20GB or the 50GB plan. Accommodation wifi in Australia varies a lot, so it's safer to lean a little more on your own data than you would in Southeast Asia.
Australia's seasons are flipped from the US. Spring (September to November) and autumn (March to May) are lovely in Sydney and Melbourne, without the summer crowds. December to February is beach season in the south. The tropical north around Cairns and the reef is best in the dry season, roughly May to October, which is also the comfortable time for the outback.
Sources: whistleout.com.au · biglapbible.com.au · transportnsw.info · usa.embassy.gov.au · relocate.world. Information checked October 2026. Entry rules and fees change, so confirm with official sources before you travel.