The cruise operator has become the first in the US to operate all three of its brands in Cuba this year.
Through to December 2017, Norwegian ships will take 30 voyages to the island nation.
Now the cruise line is ramping up its focus on the market even higher.
Norwegian has announced 33 more sailings to Cuba in 2018, with four-day round trip voyages from Port Miami from March 26, aboard the Norwegian Sky.
Most of the itineraries will have overnight stops in Havana and Norwegian’s private island in the Bahamas, Great Stirrup Cay.
President and CEO of Norwegian Cruise Line Andy Stuart said: “Cuba is a spectacular destination and we are seeing incredible demand from our guests to experience the beautiful and cultural-rich city of Havana and her warm and friendly people.
“We are excited to provide even more opportunities for our guests to experience this incredible destination into 2018.”
The move comes despite US airlines cutting back on Cuba schedules, or ceasing them altogether.
Frontier Airlines and Silver Airways have announced they are reducing the number of flights offered to Cuba, following in the footsteps of JetBlue and American Airlines.
Over a third of Brits (37 per cent) are more likely to visit the island nation than they were two years ago, according to Virgin Holidays.
Tourism has soared on the island in recent years – particularly since relations between Cuba and the US started to thaw in 2014.
In 2016, a record four million tourists visited Cuba – a 13 per cent increase on the previous year.
In 2017, the Cuban Ministry of Tourism predicts that number to soar even further.
