Airlines set their own rules for taking animals on flights. In general, small pets such as dogs and cats can accompany passengers into the aircraft, provided they are inside an animal travelling cage or case. Normally this cage must not exceed the maximum dimensions and weight permitted for hand baggage.
Contact your airline to find out which rules apply to your flight.
The number of animals on board may be limited
Remember that airlines usually charge an extra fee for allowing an animal to travel inside the aircraft. Inform the airline at the time of booking that you will be bringing an animal on board - the number of animals permitted on board is often limited. Larger animals can sometimes be transported as air cargo in compliance with special regulations. Contact your airline to find out what rules and charges apply.