What is the fee for overweight carry-on luggage on my United Airlines flight to South America?

United Airlines allows one carry-on bag that fits in the overhead bin or under the seat, and one personal item such as a purse or laptop bag. The carry-on bag should not exceed the dimension of 22 x 14 x 9 inches (23 x 35 x 56 cm), including handles and wheels. United Airlines also has weight restrictions, and your carry-on bag should not weigh more than 35 pounds (16 kg). If it exceeds the allowed weight, United Airlines will charge you an overweight fee.

The overweight fee for a carry-on bag on United Airlines varies depending on your destination. For flights to South America, the overweight fee for a carry-on bag is $200 per bag for bags weighing between 51-70 lbs (23-31 kg), and $400 per bag for bags weighing between 71-100 lbs (32-45 kg). If you are not sure about the weight of your carry-on bag, United Airlines recommends that you use a scale to weigh your baggage before arriving at the airport.