Optus eSIM international: How to use Optus outside of Australia
Optus eSIM international: Know how to use Optus outside of Australia with data roaming, costs, data allowances, and other unlimited data alternatives.
Planning to travel abroad and wondering how to make the most of your Optus eSIM international plan? You’re in the right place.
In this guide, we’ll walk you through how to use your Optus eSIM overseas, explore available plans and pricing, and discuss Holafly as another option to help you stay connected wherever you go.

Does Optus offer an international travel eSIM?
No, Optus does not offer a separate “travel eSIM” product you can buy just for international use. Optus eSIMs are intended for use within Australia and are tied to your regular Optus plan.
However, you can still use your Optus eSIM for international travel with data roaming.
Travel abroad using Optus international roaming
With data roaming, you can use your Optus eSIM abroad. Optus offers different roaming options for its users, with Optus Daily Roaming being its main roaming option for Optus Choice Plus, Optus Plus Promo, and Optus Plus Family planholders.
With Optus Daily Roaming, you can get 5 GB of data for 24 hours on 150+ destinations and select partner airlines, with unlimited standard talk and text. Note: Aeromobile allows mobile roaming while in-flight on Optus’ partner airlines.
If you run out of data, you can add 5 GB more for another $5. Make sure to calculate the amount of data you’ll use to avoid unexpected costs.
If you’re not an eligible planholder, you can get the $10 Optus roaming pass or stay connected with standard Optus roaming rates. Prepaid customers can use Optus’ prepaid roaming options.
The $10 Optus roaming pass includes 1 GB of data and unlimited national talk and text to over 100 destinations. Meanwhile, standard international roaming rates start at $1 per MB. Check these rates and other prepaid roaming plans on the Optus website.
Keep in mind that roaming add-ons are automatically activated once you’re in an eligible destination. Roaming rates can also add up quickly, so monitor your usage and consider unlimited data options like Holafly if you need more data.
Enjoy unlimited data with Holafly
Get unlimited data in over 200 destinations, plus 10 regions, with Holafly’s unlimited data eSIM. Enjoy no roaming charges and choose an eSIM plan that lasts anywhere from 1 to 90 days.
You can also choose an eSIM specific to your chosen destination. Below are Holafly eSIMs to top travel destinations for Australians.
Disclaimer: The data in this review is accurate as of Aug 6, 2025, and is subject to change.