28 Jan 2016 - 4:38 PM  UPDATED 28 Jan 2016 - 4:38 PM

Dominant Serena Williams has needed just 64 minutes to end the challenge of fourth seed Agnieszka Radwanska and advance to the Australian Open women's final.

The 6-0 6-4 win on Thursday sent the world No.1 into her seventh Australian Open decider, with the previous six having all ending in victories, including last year against Maria Sharapova.

But this is the first time she has ever won her first six matches at Melbourne Park without dropping a single set.

Williams completely dominated the winners' count 42-4 against Radwanska, whose record against the American now sits at a sorry 0-9.

Williams will play either No.7 seed Angelique Kerber from Germany or unseeded Australian-born Brit Johanna Konta in the title decider on Saturday night.

"I'm really excited to be in another final - it kind of blows my mind right now," said the 34-year-old.

"I feel I'm playing the best I can."

Williams had dropped only 22 games in the previous five rounds, the most competitive of which was her opening 6-4 7-5 victory over Italian Camila Giorgi - which was her first competitive match since the 2015 US Open in September.

"Physically I'm feeling a lot better," she said.

"Mentally I needed that break after the Open.

"I just feel so good."

The first set against Radwanska was done and dusted in 20 minutes, with Williams breaking her opponent's serve three times and holding her own with ease to win it 6-0.

The No.4 seed from Poland finally got on the board by holding serve in the opening game of the second set.

The second set was a much more competitive affair before Williams made the decisive break in the ninth game.

The 21-times grand slam champion then held to love to close the match out, winning the last eight points on the trot.

"She started playing really well in the second set," said Williams.

"She was making a lot of great shots.

"I was like, I have to figure out something and I started playing aggressive again.

"I went back to what I was doing all week and it worked out OK."