No, you'd have to fly from Japan to Honolulu, buy a separate ticket to Maui, then fly from Maui to Los Angeles, then on to London. You're only allowed 4 sectors in Asia, and there's no service from Hong Kong to Hawaii except with a plane change in Japan, you'd have to fly to Bali before Japan, then leave Japan for Hawaii. Otherwise you'd be flying HKG-CTS-HKG-DPS-HKG-NRT-HNL... - one too many segments in Asia.

I'd recommend you read the official rules for the Oneworld Explorer, http://www.oneworld.com/documents/10...9-d346ec820edf