The space has since had a makeover and you can read about it here.
After checking in for your flight, find the escalators (or lift) and head up one level where you will find the Thai Airways Restaurant. The restaurant is relatively unknown, people assume it’s an airline lounge and don’t venture in.
The menu offers local and international options such as Stir-fried Phuket yellow fresh noodles as well as cornflakes, croissants, and fresh fruit. Food is well priced, the western breakfast costs US$3.50 and additional menu items are priced similarly.
Some of the cutlery and crockery items do look like they were once used on the airline.
The restaurant is before security so ensure that you leave yourself enough time to make it to your departure gate on time.
Phuket International Airport Level 3.
Opening times: 06:30 – 22:00 with seating capacity up to 150. Telephone no. (076) 327-350.
Chiangmai International Airport Level 2.
Opening times: 06:00 – 21:30 with seating capacity up to 180. Telephone no. (053) 277-201.
Chiangrai International Airport Level 2.
Opening times: 0600 – 20:30 with seating capacity up to 160. Telephone no. (053) 793-077.
Reviews on Tripadvisor for the Phuket restaurant can be found here.