Baggage allowances vary depending on the airline you are flying with and where you are flying from and to.
Many airlines now offer a variety of economy fares which means that you may not have baggage included in your ticket price.
You can also check on the airline's website for general information about baggage allowance.
Please note that there are some variations to airline's standard policies, i.e. Jet Airways student/youth fares permit 1 piece of baggage at 30kg.
For your convenience here are the links for our most frequently traveled airlines:
AC Air Canada
AF Air France
AK Air Asia
NZ Air New Zealand*
FJ Air Pacific
BR Eva Air
9W Jet Airways
LX Swiss Air