In general, cockatiels can travel up to 15 miles per day and can stay in the air for up to 6 hours. This means that they can cover a significant amount of ground in a relatively short amount of time. If the cockatiel is familiar with the area and the weather conditions are good, it may be able to find its way back home within a few days. However, if the cockatiel is lost in an unfamiliar area or the weather conditions are bad, it may take longer for it to find its way home.
There are a number of things that you can do to help your lost cockatiel find its way back home. First, put up flyers in your neighborhood with a photo of your cockatiel and your contact information. You can also post a lost cockatiel alert on social media. Finally, you can contact your local animal shelter and humane society to let them know that your cockatiel is lost.