World no. 1 Axelsen powers into final in Indonesia
The Olympic gold medallist, who also won the Indonesia Open last week, dominated both sets against India's Lakshya Sen, winning their semi-final 21-13, 21-11 in 39 minutes.
The Dane will face unseeded Thai player Kunlavut Vitidsarn, who beat Malaysia's rising star Lee Zii Jia 21-18, 21-18.
South Korea's An Se-young reached the women's singles final after winning 25-23, 21-17 against Thailand's Pornpawee Chochuwong.
An is hoping to add to her Indonesia Masters and Indonesia Open triumphs.
The 22-year-old will play Pusarla Venkata Sindhu of India in Sunday's final.
"I have to be ready for the final tomorrow because An is a player who is difficult to beat," she said.
Sindhu edged out Japanese world number three Akane Yamaguchi 21-15, 15-21, 21-19.
The season-ending World Tour Finals is being played in strict bio-secure conditions and without spectators due to Covid-19 in Bali.