Norwegian Sun Drops Four Baltic Ports Amid Propulsion Issues

Updated July 9, 2026

Norwegian Sun resumed its Baltic itinerary late July 4 after remaining in Copenhagen for additional propulsion repairs, but Norwegian Cruise Line canceled the following voyage's scheduled Oslo call while work continued. The ship departed Copenhagen at 11 p.m. July 4 and has continued its Copenhagen-to-Helsinki sailing with scheduled calls at Warnemunde, Gdynia, Klaipeda, Riga, Nynashamn, Tallinn and Helsinki.

NCL told guests that technical teams "have continued working diligently to complete the repairs needed to restore the ship's optimal operating capabilities." The line added, "To accommodate the final stages of these repairs while maintaining our commitment to the safety and comfort of our guests and crew, Norwegian Sun will remain overnight in Copenhagen, Denmark, for an additional evening."

Since Norwegian Sun left Copenhagen, the company has not announced additional itinerary changes tied to mechanical issues. Several guests aboard the ship have also said on social media that the vessel is operating normally.

Oslo canceled on the following sailing

Norwegian Sun's next scheduled cruise was a nine-night July 3 Copenhagen-to-Helsinki sailing to Norway, Germany, Poland, Lithuania, Latvia, Sweden and Estonia. The ship remained in Copenhagen for an extra night as the final repair work continued, and NCL removed the scheduled July 4 call in Oslo.

For guests on that sailing, NCL provided a $100 non-refundable onboard credit per stateroom, equal to $50 per guest for the first two guests in each cabin. Shore excursions booked through NCL for Oslo were automatically canceled, with refunds issued as onboard credit.

Earlier Helsinki sailing was heavily revised

The extended repair stay followed Norwegian Sun's June 24 departure from Helsinki, a nine-night Baltic voyage that was repeatedly revised after propulsion-related technical issues forced the ship to operate at reduced speed. NCL told guests during that sailing that the problem affected the ship's schedule but "does not affect the safety of our guests or crew."

Captain Teo Radun informed guests over the PA system that the technical issue was limiting the vessel's speed. NCL later advised passengers of cancellations, revised arrival times and compensation tied to the changed itinerary.

The June 24 voyage was originally scheduled to call at Tallinn, Nynashamn/Stockholm, Riga, Klaipeda, Gdynia/Gdansk, Warnemunde, Kiel and Copenhagen. NCL first canceled Nynashamn and Klaipeda and replaced those calls with sea days, while substituting Ronne, Denmark, on Bornholm for Gdynia. Warnemunde remained on the schedule for June 30 with a revised call from 7:30 a.m. to 11 p.m.

Kiel was later removed from the July 1 program. Norwegian Sun arrived in Copenhagen earlier than the previously revised July 2 arrival time and remained alongside through the July 3 debarkation, giving technical teams more time to work on the propulsion issue before the next sailing.

Compensation on the June 24 voyage

NCL first offered passengers on the June 24 voyage a non-refundable onboard credit of $100 per stateroom, split equally between the first two occupants, and a 25% Future Cruise Credit for each guest. The future credit can be used on new bookings made within 12 months for sailings departing by Dec. 31, 2027, and is scheduled to be available from July 3, 2026.

After the Kiel cancellation, the line added a refund of the fare paid for the current cruise. "As a further gesture of appreciation for your understanding, we will now also provide a 25% refund," NCL told guests, with refunds to be sent back to the original form of payment within seven to 10 business days after the voyage ends.

NCL shore excursions for the canceled calls at Nynashamn, Klaipeda, Gdynia and Kiel were automatically canceled and refunded to onboard accounts. Tours for remaining revised calls were adjusted where possible, with refunds issued if the modified schedules could not be accommodated.

Ship details and repair status

At 78,309 gross tons, Norwegian Sun is a Sun-class vessel built in 2001 at Lloyd Werft in Bremerhaven and refurbished in 2026. It carries 1,878 to 1,936 guests at double occupancy and up to 2,323 passengers at maximum capacity, with 906 crew.

The ship's published maximum speed is 23 knots. After the Riga call on June 27, satellite tracking showed Norwegian Sun making 11 knots toward Ronne. The vessel uses diesel-electric propulsion with two controllable-pitch propellers. NCL has not publicly identified the component involved.

In a later passenger communication during the June 24 sailing, NCL said its technical teams had "identified the required repair solution." The line then kept Norwegian Sun in Copenhagen longer than planned before the ship departed on the evening of July 4 and resumed the remaining Baltic itinerary.