Are there nonstop flights from Bangkok (DMK) to Rishiri (RIS)?

No. The fastest connection is via Sapporo, about 7h 18m of total flying time.

What is the fastest connection from Bangkok (DMK) to Rishiri (RIS)?

via Sapporo ≈ 7h 18m (estimated flying time, excluding layovers).

Don Mueang International Airport (DMK) to Rishiri Airport (RIS)・5,158 km

No nonstop flights. The fastest connection is via Sapporo (CTS), about 7h 18m of flying time (layover not included).

None.

1 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.