Here’s Alex Peter. As per the United Airlines Baggage Policy travelers are permitted to check in one bag free of charge for specific fare classes however, additional bags will incur penalties. Must fit under the seat or in the overhead bin for carry-on luggage. It’s advisable to review the most recent rules on their website as dimensions and weight restrictions sometimes change. Keep in mind that important or fragile things need to be packed carefully. To guarantee a seamless travel experience, customer support is available for any queries or special requirements.