I made a withdraw from IRA in 2019. Am I able to return funds to a different IRA account in 2020 before tax deadline.

If more than 60 days has elapsed since you received the funds, you can no longer return the funds to a different IRA. You would have to report it as a withdrawal (distribution).

This would be called an indirect rollover if the funds were returned within 60 days.

Except in the case of a qualified first-homebuyer distribution where the purchase has been delayed or cancelled, the deadline for rolling over any IRA distribution received in 2019 has passed.