Weight limits for 2026 air travel are generally divided into carry-on and checked categories. For carry-on baggage, many full-service airlines in the US (like Delta or United) do not enforce a specific weight limit as long as you can lift the bag into the overhead bin, though many international and budget carriers strictly cap carry-ons at 7 kg to 10 kg (15–22 lbs). For checked baggage, the standard economy limit is almost universally 50 lbs (23 kg) per bag. If you are traveling in Business or First Class, this limit often increases to 70 lbs (32 kg). Exceeding these limits typically incurs steep "heavy bag" fees, which can range from $50 to $200 depending on the route. Additionally, a "personal item" like a backpack or laptop bag must fit under the seat in front of you. In 2026, airlines have become increasingly rigid with these measurements to maximize fuel efficiency and overhead bin space, so using a portable luggage scale before reaching the airport is a highly recommended "pro-traveler" move.