United Airlines is giving customers many reasons to book cruises through the airline's new United Cruises service. Depending on the length of their stay, customers can earn up to 10,000 miles simply by booking a cruise online at cruises.united.com or by calling 800-211-2039.

When customers book a room using their Mileage Plus Visa Card before April 30, 2011, United Cruises will double the amount of miles earned. Mileage Plus members can also earn up to 20,000 total Mileage Plus award miles when they book a balcony or suite stateroom before the same date, and can earn up to 40,000 award miles if they book a balcony or suite stateroom with their Mileage Plus Visa card for a stay of at least 13 nights.*

United launched United Cruises on Jan. 20, 2011, offering customers a convenient way to book travel on 19 different cruise lines to destinations worldwide, including the Caribbean, Bahamas, Alaska, Europe, Mexico and Bermuda. Cruise lines available through United Cruises include name brands like Carnival, Royal Caribbean, Norwegian Cruise Lines, Celebrity and Disney. Customers receive a 110 percent best price guarantee and savings of up to 75 percent off of the brochure rate on sailings when booking on United Cruises. **