Hola. I'm planning a RTW trip for next year flying from Europe to NZ and then the aim is to get to Mexico and Central america, returning to NZ (instead of Europe). Flight-wise, how should I do it? I probably cant backtrack from Latin America to NZ (I read somewhere that maybe I can as some air alliances do it by airmiles ?) Maybe im better off getting a one way to NZ and buying my RTW ticket there, if so can any kiwis tell me who much they cost? so many questions...
You do know that backtracking means to trace one's steps again, so if that is what you mean you shouldn't have any trouble with your plans since you have done this before.
Do you mean backpacking, which means to hike while carrying a backpack?
My gut reaction is your two ideas are probably the right ones, but the wrong way around -
1. Pay the extra for a mileage only ticket which will enable you to get back to Nz at the end of the trip, and if you do it right, you can even then get a bonus on the way home by doing something like spending a week on Easter Island for example.
2. Buy a rtw in Europe (where there are lots of deals and it can be done more cheaply, allegedly, than in many other places) and then at the end, fly from Ctrl America back to Europe using the last portion of your rtw ticket and then get a single ticket from there to New Zealand. If you book this ticket far enough ahead it should be cheaper, although obviously you would need a confirmed date. It may even work out cheaper to book a package holiday from Europe to nz a year in advance at cheapest rates, and then just junk thewhole accom/return flight portion - sometimes this really is cheaper!