I have crossed the Atlantic three times by ship. Basically, there are a couple of cruise ship companies that have very, every inexpensive prices from Caribbean ports when moving ships east in the spring and west in the autum. to Spain and/or Portugal. Think round trip for less than one way by air. And, of course, 3 meals, a comfortable bed, entertainment, and lots of opportunities to use the recreation facilities. Best of all, arriving without any jet lag ! So, no "down time" when arriving. Easy ship passage from Gibraltar and some other Iberian ports to N. Africa.
So, it will pay to wait for cruise travel to be safe.