To access your current or prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/

Scroll down to the bottom of the screen and on the section Your tax returns & documents click on Show.  Click on the Year and Click on Download/print return (PDF)

Well here is the scoop if the PDF you can download right now is incomplete ....

Right now the 2019 returns are being archived so  if  you did not save a PDF of the complete return using the print center  BEFORE the online system closed this year on 10/31  you will need to wait until early December when the Online system opens back up for the 2020 tax year. 

If you need a copy before then ...

Go to this IRS website for free federal tax return transcripts - https://www.irs.gov/individuals/get-transcript

For a fee of $50 you can get a complete federal tax return from the IRS by completing Form 4506 - http://www.irs.gov/pub/irs-pdf/f4506.pdf