A three-week Thailand itinerary that moves from Bangkok to Chiang Mai and Chiang Rai before shifting south to Krabi, the Phi Phi area, and Ko Lanta.
A three-week Thailand framework that separates Bangkok, the northern Lanna cities, and the Andaman coast into clear chapters instead of stretching the existing 12-day Bangkok-Chiang Mai-Koh Samui route.
Use the reference page for context, then check current plans in the Smart Planner.
21 days · 20 nights · 6 Stops
4 nights · City base
4 nights · City base
3 nights · City base
3 nights · Overnight base
3 nights · Island base
3 nights · Island base
A map is omitted until verified stop coordinates are available; the ordered stop list is the source-backed route representation.
Bangkok works as the international arrival, Chiang Mai and Chiang Rai form one northern cultural chapter, and Krabi then becomes the gateway to the Andaman coast where Phi Phi and Ko Lanta can be grouped without crossing back to the Gulf islands.
A good fit if you…
Tourism Authority of Thailand documents Bangkok, Chiang Mai, Chiang Rai, and Krabi as distinct destinations, and its Krabi guidance explicitly includes both Phi Phi and Ko Lanta. The exact three-week night allocation and transfer sequence are IKARU editorial pacing; verify current flights, rail, road, ferries, weather, and marine notices before booking.
This is an editorial route, not a published real-traveler trip. No first-party traveler source is attached to this record.
Route record reviewed: 2026-09-04
For a two-week trip, drop either Chiang Rai or one Andaman base rather than preserving every stop with constant transfer days.
Add nights inside the north or Andaman chapter before adding another coast; the Gulf and Andaman sides have different seasonal patterns and extra transfers.
