Checked Luggage 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. A common size bag for checking through is: 27 x 21 x 14.

While most airlines do not have a "hard" limit on the absolute number of suitcases a single passenger can check, they enforce strict practical limits through a combination of steep excess baggage fees and physical aircraft capacity. Standard tickets usually include or allow for up to two checked bags, but almost all major carriers allow you to check additional pieces (often up to 10 on domestic flights) provided you are willing to pay for them. These fees typically increase exponentially for each additional bag; for example, the first bag might be $35, while the fourth or fifth could cost $200 or more. Furthermore, many airlines place a "baggage embargo" on certain routes or during peak holiday seasons, limiting passengers to only two bags to ensure there is enough room for everyone's luggage and commercial cargo. Additionally, no single bag can ever exceed the heavy-lifting safety limit of 32 kg (70 lbs); if you have more weight than that, you must split it into a second suitcase rather than bringing one giant trunk.