I'm not sure about the extra flights in terms of OW - I can see a extra flights being put on around the islands - but I can hardly imagine masses of Americans going to watch cricket!

If you can get your match tickets sorted in the next few months, so that your dates are set, you'll have plenty of time to sort out the flights.

If you're set on doing your RTW in F think about starting somewhere in Asia (CMB, BKK) as you should save yourself a fair few $$$$

And taking teh 'from Oz' to mean you're an Aussie - don;t worry about tickets to the final. That'll be the black caps and England.