Hi Guys! Thank you so much for the replies. I should have said I was travelling from UK, Glasgow area, to Australia, Cairns. I'm happy to hear Pet Air popping up as I have requested a quote from them. The whole thing is a bit of a rollercoaster of emotions so I'm struggling to approach it with a clear head. Neither my husband or I think it is fair to move the cats all the way to Cairns, especially given the drastic change in environment but neither can we face placing them in a rehoming shelter or to a family who won't care for them. We have had them 9 years now so they are very much apart of the family. Sent from my iPhone using PomsinOz