Ah, so, THAT kind of ocean passage
. This website is more about people doing sail and motor
cruising on smaller, private or charter
boats, generally for pleasure.
Big ships do cross the Atlantic, although most passenger/cruise line ships will not do a transatlantic crossing in winter. Cruise
liners will often follow the sun, spending a season or maybe the whole year in mild- or warm-climate places. Sometimes "repositioning cruises" are available at transitions between seasons as some ships move between the Caribbean
and Pacific Northwest
Cargo ships keep more of a year-round schedule and will go to places where not many cruise
liners will go. Freighter/cargo ship travel is possible on freighters, some of which allow up to twelve passengers, and a few hybrid cargo-passenger ships.
Freighter travel is different from regular cruise/passenger liner travel in that the voyages tend to be longer, amenities are more basic, passengers are expected to be more self-contained, and there's a lot more privacy. Freighter travel may be a little less expensive than passenger liner travel, but it's not super cheap
; you may pay less per day but be paying for many more days.
There are websites for freighter travel, and of course plenty of websites and places for passenger liner/cruise ship travel.
Working a passage
on a ship is of course a hugely different topic, and means developing specific job skills, getting various credentials, and dealing with unions, global wage competition, etc. Working on yachts or becoming crew for a yacht delivery
is an option, but also requires some specific preparation, more likely to happen if you get recommendations, and of course requires that you go where the yachts go -- which is not bloody likely to be winter north Atlantic.