Are there nonstop flights from Nagoya (NGO) to Taichung (RMQ)?

Yes. Tigerair Taiwan fly this route. Flight time is about 2h 48m.

What is the fastest connection from Nagoya (NGO) to Taichung (RMQ)?

via Kumamoto ≈ 3h 19m, via Okinawa (Naha) ≈ 3h 24m, via Busan ≈ 3h 34m (estimated flying time, excluding layovers).

from 15,000 JAL miles (economy, one way, based on the published award charts).

Chubu Centrair International Airport (NGO) to Taichung International Airport / Ching Chuang Kang Air Base (RMQ)・1,955 km

Nonstop flights available (1 airline). Flight time about 2h 48m. Nonstop return flights also operate.

With milesJAL 15,000 miles+ (via ICN)Economy, one way, estimate. Tap a connection for miles by cabin.

7 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.