You can compare deals from several cruise lines on a site like Orbitz or Expedia. These will let you shop around before you buy.
According to the Best Price Cruises website, the best deal for a 6 to 9 night cruise which will cost $499. Best Price Cruise is basically like Expedia, but for cruises.
Silversea Cruises offers the best Alaska cruises because they use 382-passenger ships.
Go to CruiseShopping.com. You will be able to find a very competitive price there. CruisesOnly.com would also be worthy of your attention.
Royal Caribbean Norwegian Pearl Carnival and Disney cruises.
The best would be through the Alaskan Line. They have the most cruises. Although, many other do go to Alaska.
One can find find a lot of cruises to the outer banks of Alaska on online cruise agencies all over the internet. Examples are "Best Holiday Cruises" and "The Boat Company Southeast Alaska".
Royal Caribbean or Carnival cruises.
Norweigian Cruise Line has an abundant amount of cruises where you can choose your price, length of stay and which ports to stop off. Norweigian focuses it's cruises on Alaska.
Alaska Cruises can be found online or in TV ads, I am sure there are a bunch of opportunities for them. However most alaska cruises are good deals, they are very much worth your money.
There are great pices available at AlaskanCruise.com
You can find cheap alaska cruises at alaskacruises.com, the site offers special discount as well/
The best discounts on Alaskan cruises are for cruises leaving during the months of May and September. Alaskan cruises run from May through September. The most expensive times for an Alaskan cruise are during the warmer months of July and August.