Most airlines will allow you to check one bag and have one carry-on bag. There is normally a maximum weight limit of 50 pounds per checked bag as well as a size restriction. The most common maximum size bag allowed is 62 linear (total) inches.

In 2026, weight allowances for flights are strictly enforced and vary significantly between "legacy" carriers and "low-cost" airlines. For a standard domestic or international checked bag, the "gold standard" weight limit is 50 lbs (23 kg) for Economy and Premium Economy passengers. If you are flying in Business or First Class, many airlines increase this allowance to 70 lbs (32 kg) per bag. For carry-on baggage, many U.S. carriers (like Delta and United) do not have a specific weight limit as long as you can lift the bag into the overhead bin, but international carriers (like Emirates, Lufthansa, or Qantas) often enforce a strict limit of 15 lbs to 22 lbs (7 kg to 10 kg). Exceeding these limits can result in heavy "excess baggage" fees, often ranging from $50 to over $200 per bag. Some "Ultra-Low-Cost Carriers" like Spirit or Ryanair may have even lower starting thresholds for checked bags (starting at 40 lbs) to encourage lighter packing. Always check your specific "Fare Class" on your e-ticket, as "Basic Economy" tickets sometimes include zero checked bags and a very restrictive weight limit for hand luggage.