SandyK - between the late 80's and late 90's I developed a fear of flying after a nasty experience. In 1998 I desperately wanted to go to Sydney and persuaded a friend to come with me and 'look after me'. Got a prescription from the doctor and survived that trip with the help of my crazy g/f who chatted nonstop all the way! Then came the longhaul to the USA and quelle horreur...I had lost my precious pills. A friend recommended Bach Flower Rescue Remedy and so I met this 'flying friend'. You can get drops or spray. I use the spray generously prior to boarding but after check in and security as you need all your faculties for those events!!

Once on the plane I have a few more sprays...ooooooh.. Then I allow myself one glass of wine (any more can result in a 'hangover' effect).
Have done the USA - NZ - USA trip almost every year for the past seven years. This time was a bit more nervous ( old age ) but was fine with my little spray bottle!!
Its pure alcohol I know, despite its 'herbal' genes

but I swear by it!
You surely have such a marvellous holiday to look forward to, and that trip to Sydney is just all eating and drinking anyway isnt it???
Hope you have a wonderful time!