Planning a round trip fly-out from Bangkok to Chiangmai then return back to Bangkok, does anyone know what is the requirement and procedure regarding Covid, and is there any quarantine required on the both places?
TLDR : Answer Summary
Traveling from Bangkok to Chiang Mai and back has specific requirements regarding Covid-19. There is no quarantine requirement when leaving Bangkok. However, depending on your vaccination status, a vaccination certificate may be required. When entering Chiang Mai, there might be additional testing requirements such as an ATK test, but this can vary. Overall, current policies do not necessitate quarantine in either destination.