Using TurboTax you can e-file a 2024 tax return at any time on or before October 15, 2025.
If your 2024 tax return has a tax refund there is no need to file an extension request as there are no penalties for filing after the due date, April 15, 2025, if you have a tax refund
However, if you have taxes owed, those taxes have to be paid on or before April 15, 2025 to avoid a failure to pay penalty.
The extension request only gives you until October 15, 2025 to file a tax return, it does not give you an extension to pay taxes owed.