Air Canada has the following policies on pet-travel:
Pets are allowed as both carry-on and checked luggage. Restrictions vary for UK and US-based animals, so please refer to their website.
Fees: $50-$100.00 each way as carry-on, depending on itinerary. $105 and up each way as checked baggage ($270.00 international).
– Only cats and small dogs are allowed as carry-on. Only cats and dogs are allowed as checked baggage.
– One pet per customer as carry-on, two pets per customer as checked baggage.
– Maximum allowable weight is 22 pounds or less, including kennel.
For complete guidelines, check their site at: Air Canada