Offer valid for flights between March 6 and May 31, 2014.
Promotion Code: NYSFO
To register try this link
Depending on your class of service, you can earn:
Bonus Mile Offer Terms and Conditions:
AAdvantage bonus mile offer is valid for round-trip travel on American Airlines marketed and operated nonstop flights between New York Kennedy (JFK) and San Francisco (SFO) from March 6, 2014, through May 31, 2014. Half the bonus shown will be awarded for one-way travel. Offer applies only to AAdvantage members who purchase and fly on eligible published fare tickets (excludes fares beginning with O and Q). Bonus miles will be awarded based on the booking class purchased. Bonus miles do not count toward elite status qualification or AAdvantage Million Miler status. Registration prior to travel is required.