If you have unavoidable reasons, you might have to cancel your reservation with Austrian Airlines, so there is no need to worry. You must check the policies to learn the requirements for ticket cancellation requests. Below, you can find the Austrian Airlines cancellation policy to consider:

Cancelling a ticket is only allowed 40 minutes before the scheduled boarding time. After that, Austrian Airlines' cancellation window will be closed.
The refundable flights are only allowed to be canceled for the ticket reimbursement.
The ticket cancelled within 24 hours of the booking period will be free of cost.
Any fees paid for the additional services during booking will not be reimbursed if you cancel your flight at any time.

How do I cancel my Austrian Airlines flight?

If you are not willing to board the flight you have reserved with Austrian Airlines due to unavoidable reasons, you can cancel your ticket from the official site with the help of these given steps:

Open the official Austrian Airlines page,
Click on the "My Bookings" option, and a small tab will appear,
You will have to put the Booking Code and Last Name,
Then press the Next button,
Your Austrian Airlines booking details will appear on the page,
Now you have to look for the "Cancel Booking" option,
Follow the given prompts and complete the cancellation of your flight ticket.

Does Austrian Airlines charge for cancellation?

Austrian Airlines applies charges for cancelling a ticket with them after the free cancellation window. A person who cancels their ticket anytime after the 24-hour booking period must pay 30 EUR as a cancellation charge. If the cancellation you are making is due to the delay in the original boarding time, you will not have to pay the fee at Austrian Airlines, and the total fare will be refunded.