Officials estimated the drugs to be worth about B5.4 million.
Phuket Airport Customs House Chief Hattaya Thipyawat and Phuket Governor Chamroen Tipayapongtada announced the arrest at a press conference at 2pm.
“Oathcara Wikho, from Prachinburi, was found in possession of the drugs when officers stopped and searched her during a routine security check,” Ms Hattaya said.
Ms Oatchara arrived on Emirates Flight EK394, which left Dubai last night and arrived at Phuket Airport at 4:15am today, Ms Hattaya added.
Upon suspicion, custom officers search Oatchara’s bags and discovered 100 packages of cocaine wrapped with chocolate covers.
“Some were mixed with actual chocolates in two boxes that were inside a duty-free bag that she was carrying,” Ms Hattaya explained.
Oatchara said that she was hired by a man who she knew only as “Mr Michael” and had never met.
“She said he paid her B150,000 to bring the chocolates to Phuket, but denied any knowledge that she was carrying drugs,” Ms Hattaya said.
“She said that Michael instructed her on the phone to contact him after she had checked in to a hotel so he could arrange someone to collect the chocolates,” she added.
Oatchara was taken to Tha Chatchai Police Station and charged with possession of a Category 2 drug with intent to sell and smuggling a Category 2 drug into the Kingdom.