In 2026, you can still check a bag heavier than 50 lbs (23 kg) on most major airlines, but you will be hit with significant overweight baggage fees. The standard industry limit for a "regular" checked bag is 50 lbs; anything between 51 and 70 lbs is typically flagged as overweight, often resulting in a fee ranging from $100 to $200 per leg. Bags between 71 and 100 lbs incur even higher "heavy" fees, and many airlines will refuse to carry any single piece of luggage exceeding 100 lbs (45 kg) for the health and safety of baggage handlers. However, passengers in First or Business Class, as well as those with high-tier elite status, are often granted a higher complimentary limit of 70 lbs. To avoid these steep 2026 penalties, travelers are advised to weigh their bags at home or redistribute heavy items into a carry-on or a second checked bag, which is often cheaper than paying a single overweight fee.