CHICAGO: American Airlines has launched a new campaign in rivalUnited Airlines' hometown, touting American's efforts to provide morelegroom.

Weber Shandwick Worldwide is working with American to promote its "BestLegs in Chicago contest, which calls on Chicagoans to vote on 10 pairsof celebrity legs at aa.com/legs.

American is donating $1 per vote, up to $50,000, to theSusan G. ...