American Airlines Booking Number, Inc. is a major United States airline headquartered in Fort Worth, Texas, within the Dallas-Fort Worth metroplex. It is the world's largest airline when measured by fleet size, revenue, scheduled passengers carried, scheduled passenger-kilometers flown, and number of destinations served Bag information: In economy, within Canada and the US, 1st bag $25, 2nd bag $35. To other destinations, prices vary by itinerary. More American Airlines bag informationHeadquarters: Fort Worth, TXReservations: 1 (800) 433-7300Baggage tracking: 1 (800) 535-5225Alliance: Oneworld Reservations with an aa.com promotion code are "instant purchase" only. Customers in Latin America and the Caribbean can hold reservations using express ticket service on aa.com/espanol. Call your local American Airlines reservations to complete and pay for your ticket.