American Airlines will offer cheap airfares next year to compete with low-cost carriers, while reporting that a key passenger revenue metric fell, following similar declines at Delta Air Lines, United Continental and Southwest Airlines. American Airlines’ (AAL) Q3 earnings rose 67% to $2.77 per share. Analysts polled by Thomson Reuters expected $2.72 per share. Revenue dipped 3.9% to $10.7 billion, slightly above views for $10.69 billion.