Are there nonstop flights from Bangkok (BKK) to Christchurch (CHC)?

No. The fastest connection is via Sydney, about 12h 20m of total flying time.

What is the fastest connection from Bangkok (BKK) to Christchurch (CHC)?

via Sydney ≈ 12h 20m, via Melbourne ≈ 12h 27m, via Brisbane ≈ 12h 28m (estimated flying time, excluding layovers).

from 23,000 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

Suvarnabhumi Airport (BKK) to Christchurch International Airport (CHC)・9,641 km

No nonstop flights. The fastest connection is via Sydney (SYD), about 12h 20m of flying time (layover not included).

With milesANA 23,000 miles+ (via SYD)JAL 37,000 miles+ (via SYD)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

8 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.