Update (2:10 pm ET, Aug. 17): This sale has been extended for bookings through Tuesday, Aug. 21. 

Journey across the Atlantic for two weeks on a US$399 per person cruise. This deal includes US$150 in onboard credit per cabin and is part of a massive fall clearance sale on Transatlantic cruises as ships head east for winter Caribbean sailings. This breaks down to less than $29 per person, per day.

This sale features deals on multiple cruise lines, and other sailings include a US$100-US$250 onboard credit per cabin – when booked by Friday, depending on itinerary. Here are some of our favorites:

• US$399 incl. US$150 credit ... 14 nights on Norwegian Sun
  Copenhagen, Denmark, to Miami on Sept. 30
• US$499 incl. US$250 credit ... 14 nights on Norwegian Epic
  Barcelona, Spain, to Miami on Oct. 21
• US$599 incl. US$100 credit ... 15 nights on Holland America's Ryndam
  Barcelona to Fort Lauderdale on Oct. 26
• US$699 incl. US$150 credit ... 13 nights on Celebrity's Eclipse
  Southampton, U.K., to Fort Lauderdale on Oct. 27
• US$699 incl. US$100 credit ... 13 nights on Royal Caribbean's Independence of the Seas
  Southampton to Fort Lauderdale on Nov. 22
• US$1099 incl. US$200 credit ... 20 nights on Princess' Crown Princess
  Venice, Italy, to Galveston, Texas, on Dec. 2

Click here for more information on this deal from CruCon Cruise Outlet featuring discounts and onboard credits.

Note: Taxes are an additional US$90-US$115 depending on departure date.