Screen shot of the AA CPM Google Chrome Extension photo credit AAdvantageGeek on Flickr
Here’s the information from the Google Chrome Extension Gallery:
Cents per mile (CPM) is a common indicator of good value for the frequent flier community when purchasing airline tickets. This extension will compute the CPM for the cheapest economy fares listed on American Airlines’ Price & Schedule matrix at aa.com.
It’s not from American Airlines. It was developed by travel enthusiast Kyle Duarte and more information is available on his Flyer Tool site, where you’ll also find his oneworld Lounge Access Wizard, a great online tool to help you determine if you qualify for access to the Admirals Club or a oneworld partner lounge when traveling on American or one of the other oneworld carriers.