The following looks good, but here is my question. Since it mentions a round trip ticket, does that mean I cannot do MCI-DFW-IAD--..... and then return IAD-DFW and get the bonus? Would it be 2500 per ticket, or per 2 legs?

Travel between June 15, 2004 through September 30, 2004

Restrictions:
Offer valid only for members residing in the U.S., Canada, Puerto Rico and the U.S. Virgin Islands

Offer:
Earn up to 15,000 bonus miles for round-trip travel on AA's nonstop service between Washington Dulles and Chicago, Dallas/Fort Worth, Los Angeles, Miami or St. Louis. For each roundtrip flown, you'll earn 2,500 bonus miles (up to a maximum of 15,000 bonus miles). To qualify, purchase and fly on any purchased, published-fare ticket between June 15 and September 30, 2004. Registration prior to travel is required.