Q: What airlines are operating direct flights to Phuket?
A: Currently, Cathay Pacific, HK Express, El Al Israel Airlines, Emirates, Etihad Airways, Qatar Airways, Singapore Airlines, and Thai Airways International (THAI) are operating direct international flights to Phuket.
Please check flight schedules on the respective airlines’ websites.
Q: Can I travel to Phuket on an indirect international flight, transiting via a domestic flight at Bangkok’s Suvarnabhumi International Airport?
A: No. Currently, all travellers must travel on direct international flights to Phuket only. However, transiting via Bangkok maybe possible in the near future as Thailand gradually reopens more pilot destinations to fully vaccinated international travellers.
here the link https://www.tatnews.org/2021/08/phuket-sandbox-faqs/