Saina, fresh from her Denmark Open triumph last week, will now be up against fourth-seeded German Juliane Schenk, who powered past upcoming Chinese player Chen Xiao Jia 21-10 21-14.
It will be a replay of the Denmark Open final in which London Olympics bronze-medallist Saina had emerged triumphant to clinch her second Super series Premier title.
In yesterday's match, Saina started well, taking an 11-7 lead in the first game but Intanon came back strongly to make it 20-20 before the Indian managed to clinch it with her eighth trademark smash of the game.
The second game followed a similar script as Intanon tested Saina with her fine strokeplay.
But the 22-year-old Hyderabadi drew from experience to come out triumphant and inch closer to her third Super Series title in 2012.