Checked Baggage and Carry-Ons

• Most airlines limit carry-on bags to a total of 45 linear inches (the total of the bag's height, width and depth). Airlines have the right to demand that any bag be checked. Items not allowed on an airplane include large amounts of lithium-ion batteries, compressed oxygen tanks, explosives and flammable items. Items which must be checked include sharp objects, sporting goods, firearms, tools, martial arts items, and liquids and gels in sizes larger than 3.4 ounces. Cell phones are allowed on planes, but may not be used while in the air.
  
  

Identification

• The U.S. State Department requires a passport to enter the country from any international destination. As of November 2010, the TSA requires that passengers provide full name, birthdate and gender before boarding any flight.
  
  

Traveling with Children and Pets

• The FAA does not require child-restraint devices for young children flying, and permits children under 2 years old to ride in their parent's lap. However, the FAA recommends that children fly in a child-restraint system, and has approved specific types for use on planes. Airlines make their own rules regarding whether pets are allowed on flights, although service animals are always allowed. Pets being shipped must use regulation shipping kennels.