I have a working holiday visa for Australia (i’m a US citizen), and am hoping to fly in on a one-way ticket. I have found that if i purchase a ticket to singapore, and then another ticket to Darwin from there, it is much cheaper.

However i’m always nervous to fly international on one-way tickets. Does anyone have experience flying into Singapore one-way?
Would having a visa for Australia be enough to let me in?

Thanks,
Steve