Columbus’s first voyage across the Atlantic to the New World in 1492 took more than two months.  That famous trip launched a centuries-long effort to decrease the amount of time needed to get from Europe to America and vice versa. By the 1700s, sailing ships still needed six weeks or more to make the crossing. The never-ending push for Faster led to the steam engine. By 1845, the SS Great Britain, a steam-powered ship designed by the engineering genius Isambard Kingdom Brunel, was crossing the Atlantic in just fourteen days. A bit more than a century later, in 1952, the ocean liner SS United States, designed by William Francis Gibbs, was making the same voyage in just three and a half days, a record that stands to this day.  But the United States, like other luxury ocean liners, were destined to go the way of the buggy whip. In the late 1950s and early 1960s, jetliners began traversing the Atlantic in a matter of hours.

For one more data point, the Mayflower took 66 days in 1620. Call that 9.5 weeks.