The advice was separately issued by Thai Airways International, Thai Smile, Thai Air Asia, Thai Air Asia X, Nok Air and Thai Lion Air.
The advice applies from today (Tuesday) until November 20th, one day after the end of the APEC Summit in Bangkok.
Full Story: https://www.thaipbsworld.com/air-passengers-advised-to-allow-more-time-for-their-travel-to-airports/