Update (6:00 pm ET, Oct. 26): This sale has been extended for bookings through Oct. 30.
The warm weather and extended daylight hours of late spring make it the best time to explore Scandinavia and Russia. Sail for nine nights aboard the Norwegian Star -- and snag savings of nearly $300 on this itinerary. Plus get a $150 onboard credit per cabin.
Sail roundtrip from Copenhagen, Denmark, on June 3 for $899 per person.
Other dates are also discounted:
The ship visits Berlin (Warnemunde), Germany; Tallinn, Estonia; St. Petersburg, Russia, on an overnight stay; Helsinki, Finland; and Stockholm, Sweden.
Note: Taxes are approximately $221 per person additional.