Are there nonstop flights from Taichung (RMQ) to Osaka (KIX)?

No. The fastest connection is via Kumamoto, about 3h 8m of total flying time.

What is the fastest connection from Taichung (RMQ) to Osaka (KIX)?

via Kumamoto ≈ 3h 8m, via Miyakojima ≈ 3h 15m, via Okinawa (Naha) ≈ 3h 15m (estimated flying time, excluding layovers).

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

Taichung International Airport / Ching Chuang Kang Air Base (RMQ) to Kansai International Airport (KIX)・1,809 km

No nonstop flights. The fastest connection is via Kumamoto (KMJ), about 3h 8m of flying time (layover not included).

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

None.

11 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.