Travel Aggregators

The real strength of Cheapflights is that it has individual sites for a huge host of different countries. It lists deals, and gives you an idea of what kind of good airfares are out there.

However, Cheapflights uses some of the more traditional online booking engines such as Orbitz and Travelocity if you are looking for flights on specific dates, which does not always mean that you will get the best airfare possible.

Cheapflights.com

• offers a site for flights originating from UK and Ireland
• offers a site for flights originating from Canada
• offers a site for flights originating from Australia and New Zealand
• offers a site for flights originating from South Africa
• offers a site for flights originating from Hong Kong
• does not require registration
• lists deals by sale dates
• uses Priceline, Hotwire, Travelocity and Orbitz for specific date searches