Me and a mate, both 21, plan to backpack for 9ish months using a mixture of transport, leaving our trip very open to changes. Have a RTW plane ticket but dates can be changed.
Fly from UK to LA Oct 20th
Overland travel (not sure how yet) through US/Canada to East Coast then back to West (2 months)
Fly from LA to NZ (1 month)
Then to Australia (1 month)
Fly to Singapore overland travel or cheap flights around SE Asia (Thailand, Laos, Cambodia, Vietnam) (3 months)
Travel to China (2 weeks-1 month)
Japan (1-2 weeks)
Back to China (up to a month)
Fly back to UK, if any money left travel into Europe, if not start earning money fro the next trip
North America, Aus/NZ, SE Asia possibly Europe- 9 months
Still looking for flights? You can have flight experts compete against one another to find you the absolute best and cheapest flights.