Do you mean a 6-day trip starting 6 Oct and ending 11 Oct (6 days), or are you travelling from 6 Oct to 12 Oct (7 days total)? I need the exact start and end dates to build the itinerary.
Tell me whether you prefer beaches/islands (Phuket/Krabi/Koh Phi Phi), northern culture and mountains (Chiang Mai/Chiang Rai), or a city-focused trip (Bangkok + nearby day trips). This changes travel logistics significantly.
Confirm your arrival and departure cities (e.g., arrive Bangkok, depart Phuket) and travel pace (relaxed vs packed). Also share any must-see items or budget level.