The product allows users to view fares for three days previous and ahead of the original chosen date for an outbound and return flight, in a single screen, calendar format.
The UK and Spain sites will be first to use the new system, with France, Italy and Ireland to follow by the end of 2006 and Germany expected in January 2007.
Amadeus has allowed Lastminute.com to customise each calendar so that the branding of the airline associated with each fare is also displayed.
Lastminute.com chief executive Ian McCaig said: “Our consumers have been asking for a flexible date shopping option that encompasses our extraordinary range of airline content.
“We can now offer customers more flexibility on their travel dates and a wider choice of available fares and airline options as part of one search, empowering them to more informed travel choices.”
The current Master Pricer is the second in a series of three pieces of technology launched by Amadeus into the market. The third is expected in 2007.