Travelling with a dog by plane is possible with many airlines, but finding the right one can be surprisingly complicated. Some airlines welcome small dogs in the cabin, others only transport pets in the aircraft hold, and some don't accept pets at all. The rules can also be very different depending on where you're flying. An airline might accept your dog on a flight within Europe but not on a flight to the UK, for example. To make planning easier, I've put together a worldwid