Usually the envelopes I get from the US (to here in Australia) have a price of around $2.00 - $4.00 on them. I think it depends on the weight of your package too.

[quote="katheryn8459"]So I want to send a fan letter from US to Australia, how much would postage be? I am also including a SASE, so can I put US stamps on it? Because I don't know if Australia will mail the letter if it has US stamps.
thank you[/quote]
I live in New Zealand but have lived in Australia for a few years, and the price of sending a regular envelope (large enough to put a 6x4 photo in) internationally from the US is 98 cents.

No country out of the US that you send a letter to will accept US stamps for the return postage. You will need to include a IRC or buy some Australian stamps or the letter will be declined.

hope that helps {up}

So I want to send a fan letter from US to Australia, how much would postage be? I am also including a SASE, so can I put US stamps on it? Because I don't know if Australia will mail the letter if it has US stamps.
thank you