The KL-Putrajaya highway is finally open for traffic on Dec 23, 2007. The highway which stretches 26km from Putrajaya to Kuala Lumpur will add convenience and reduce the travelling time between KL and Putrajaya and subsequently to Kuala Lumpur International Airport (KLIA). From the Putrajaya exit, there is two options to go to KLIA. You can either use the ELITE highway which you will need to pay the highway toll of RM4.30 for cars or an alternative free road via Dengkil road.
The highway will be free to use until Jan 13, 2008.
Here is a story of the opening of the highway from The Star