Thai airways International flies from Bangkok to Auckland in a 777-200ER with 292 seats for its 12 hour journey
Thai Airways are currently using the Boeing 777-200 for the Bangkok-Johannesburg service (Flight TG991).
ten hours
12 hours 45mins
Thai Airways use the Airbus A380-800 for flights between London (LHR) and Bangkok (BKK).The Boeing 787-8 Dreamliner is used for flights between Bangkok (BKK) and Perth (PER).
Yes, you can fly from London to Auckland with a stop in Bangkok. Thai Airlines offers a flight from Heathrow Airport in London to Auckland that does stop in Bangkok. The Bangkok to Auckland leg has a stop in Sydney, Australia. What makes Thai Airlines unique is that, presently, it does not charge any stopover fees aside from departure taxes, and thus this is an inexpensive option for traveling to Auckland.
9hr 10min Melbourne (MEL) to Bangkok (BKK) by a nonstop flight operated by Thai Airways.
13 hours 45 minutes flying Thai Airways
2hr 05min Kuala Lumpur (KUL) to Bangkok (BKK) by a nonstop flight operated by Malaysia Airlines or Thai Airways.
10hr 40min to 10hr 45min Zurich (ZRH) to Bangkok (BKK) by a nonstop flight operated by Swiss International Airlines or Thai Airways.
3hr 15min to 3hr 20min KTM to BKK by a nonstop flight operated by Royal Nepal Airlines or Thai Airways.
321 km - about 6 hours 3 mins Note: you must take a ferry part of the way.
Malaysia Airways, Singapore Airlines, Silk Air and THAI Airways are the main airlines.