»»American Airlines Will Let Passengers Board Early For a Fee
American Airlines‘ passengers will be able to board early on domestic flights for a fee.
Passengers will pay from $9 to $19 each way to board right after premium-status fliers.

Boarding early for a price is one of the features of American Airlines’ “Your Choice” fee package which also lets travelers pay $75 instead of the usual $150 if they need to change plans.
Also, the package allows passengers to stand by for another flight the day of their trip at no extra cost.
“Your Choice” package is available when booking a trip on American Airlines website.
Early boarding as a stand alone option will be available for purchase later this summer at self-service kiosks in U.S. airports for $10 each way.
(source)
