Are there nonstop flights from Bangkok (DMK) to Kota Baharu (KBR)?

No. The fastest connection is via Penang, about 2h 25m of total flying time.

What is the fastest connection from Bangkok (DMK) to Kota Baharu (KBR)?

via Penang ≈ 2h 25m, via Subang ≈ 2h 50m, via Kuala Lumpur ≈ 2h 55m (estimated flying time, excluding layovers).

Don Mueang International Airport (DMK) to Sultan Ismail Petra Airport (KBR)・881 km

No nonstop flights. The fastest connection is via Penang (PEN), about 2h 25m of flying time (layover not included).

None.

5 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.