We had Aeroflot and we have had Belavia for a long time now.
In other news, TUI will increase Phuket from bi-weekly to 1 weekly next winter. It looks like Krabi may be a new route as many more Krabi hotels available with the tag line 'flights available to Phuket and Krabi' when Manchester selected. Krabi is bi-weekly this winter from LGW, and a when selecting Thailand holidays from MAN, there seems to be a bi-weekly flight available on Fridays but as yet, nothing seems to be available as you get the 'all gone' message (Krabi is also not available from LGW for next winter yet either).