Hi there, rtrant2040-aol-c.
We're unable to migrate data from Quicken Bill Pay to QuickBooks Online (QBO). You can try finding third-party apps that offer this option. You can also consider connecting your bank account to QBO to download the payment transactions and to add them to your books.
On the other hand, if you want to convert your Quicken data to QBO, please check out the detailed steps in the article for this.
Let me know if you have additional questions. We're just around to help.