On American Airlines in 2026, whether you pay for a checked bag depends on your fare class, destination, and loyalty status. For domestic flights within the U.S., Canada, and Mexico, a "Basic Economy" or "Main Cabin" ticket typically incurs a fee of $40 for the first bag ($35 if you pay online in advance) and $45 for the second. However, this fee is waived for "Premium Economy," "Business," and "First Class" passengers, who receive at least two free checked bags. You can also bypass these fees if you have AAdvantage® elite status (Gold or higher) or if you are a primary cardholder of a co-branded American Airlines credit card, which typically grants the first bag free for the cardholder and up to eight companions on the same reservation. For international long-haul flights to Europe, Asia, or South America, a standard "Main Cabin" ticket usually includes one free checked bag, but "Basic Economy" international tickets often still require a fee (roughly $75 each way). Always check your specific baggage allowance in the American Airlines app before departure, as bag fees are per person, each way, and are non-refundable once paid at the airport counter.