✈️Special privileges for airline customers* Show your boarding pass 🥤Get free! KOI Thé Coupon, buy 1 get 1 free !! 🥤Get one size S clear tea for free when you purchase a drink (size M and up) from any menu at KOI Thé. Assam Black Tea, Jasmine Green Tea, and Golden Oolong Tea are available on the Clear Tea menu. Participating airlines : Vietjet Air, Nok Air, Bangkok Airways, Thai Airways, Air Asia, Singapore Airlines, Air India and STARLUX Airlines *Note: We reserve the right only for inbound flights in Chiang Mai. who traveled on 1 Apr – 30 Jun 2024 only *Note: Participating menus Jasmine Green Tea, Golden Oolong Tea and Assam Black Tea 1 Apr – 30 Jun 2024 only At KOI Thé, Central Chiangmai, 1st floor.