Pretty much all airlines allow passengers to bring one or two checked bags within 62 linear inches (157 cm). There also are ...

50 to 70 pounds; depends on destination 62 linear inches for all destinations Checked luggage fee: American Airlines' baggage fee structure depends on the destination. For U.S. domestic flights ...

Similar to checked bag size restrictions ... for many airlines is 22 x 14 x 9 inches. Most domestic airlines do not have a weight limit for carry-on bags. You can typically bring a carry-on ...