Your eTA is valid for 2 years (or until your passport expires, whichever comes first) once it has been approved. As long as you can enter South Korea before the date of expiry, the eTA will be valid to use.
If your eTA is expired and you’d like to enter South Korea after the expiry date, you’ll need to apply for another eVisa. Feel free to reach out to us, and we’ll help you figure out your next steps.
