I have been travelling with DD interstate on average every 8 weeks since she was about 12 weeks old. The first piece of advice I can give is - DON'T PANIC. If you're taking a stroller, that will take out half of your hassle.

I found at about that age the biggest problem was the airport, but if you can keep her restrained, it's a HUGE help. And if you have no car, and plan to go for walks around the city, again, the stroller is a big help.

Virgin in my experience has always been good with us. I often travel with her by myself, and they have always been really helpful. Like Snacks said, definitely take something for her to suck on during take off and landing. She can't equalise her ears, so if yours are popping, then something to suck on will help her equalise hers.

As far as 'living' in a hotel, I'm afraid that I can't help you. Wherever we have gone, we have made sure that we had a self-contained apartment, or at least a kitchenette. I guess at 15 months she eats pretty much what you guys do, and there are ways of heating a bottle without a microwave.

And as Astrid said, anything that you will need to settle her. You just don't know how she's going to be at night. The more comforts of home, the happier she will be. At that age I generally took a few books, small toys, favourite teddy and her blankie. I remember how much I used to take with me, and how little I SHOULD have taken. You actaully don't need HEAPS, just her favs. During the day it is a lot easier to amuse her, it's night time that you want her to settle.

Good luck, and enjoy your trip.