I just looked at my delta for December/January and all is good - so far!! In 3 weeks we go LGA-MIA -SXM on AA. Then returning on a Saturday to Jfk direct on JB. I know you don’t want to do overnights. But could you get to Miami direct and stay over then fly down. Or Saturday’s to jfk and fly direct. Could
Be less stressful planning it that way. Flights are crazy inexpensive right now. We got the AA flight for 388 in First/Business. And the return on JB for 125!!