Airline Travel Restrictions: certain air travel restrictions that you should be aware of.

There are certain air travel restrictions that any flier should be aware of in order to avoid many problems connected with baggage. There are airline luggage restrictions and carry on restrictions that should be followed by passengers coming aboard the aircraft to ensure their security and convenience, as well as security and comfort of other travelers.
Domestic US flights usually allow 2 free checked baggage items. Some airlines allow a third piece, but no carry on piece may be taken. There are particular rules as for the weight and size of the baggage. Most airlines typically allow oversize, overweight, or additional baggage for an extra payment that varies depending on the situation. You should contact a particular airline or visit their website for more concrete information.
International flights usually have the same size and weight restrictions as domestic airlines, but may reduce the number of pieces that can be checked. Allowance options vary depending on the destination country.
One should be aware that virtually every airline specifically states that they cannot be responsible for any valuable items in checked or carry-on luggage, like computers, electronic equipment, camera equipment, jewelry, cash, and so on.
Airline Carry on Restrictions
As for carry on restrictions, there are certain dimensions a piece should not exceed. There is also a new security measure stating that no knives or cutting instruments of any kind are permitted on carry-on baggage.
TSA is currently implementing some changes to airport screening procedures: no liquids or gels of any kind, except for baby formula and medicines, will be allowed in carry on baggage – they should be placed in checked baggage; beverages bought in the boarding area, beyond the checkpoint, must be consumed before boarding as they will not be allowed onboard the aircraft.
Every passenger can assist in flight security by packing lightly, arriving earlier at the airport, and being attentive to any suspicious activity and report it to airline officials.
Damaged Baggage
Your baggage can be damaged in some way during the flight. You should know that airlines policy as for damaged baggage is becoming stricter, and airlines are limiting the kinds of damage they are ready to compensate for. Check with your particular airline for more details.