From Apple’s original press release, here’s the current list of countries:

iPhone 6 and iPhone 6 Plus will be available in the US, Australia, Canada, France, Germany, Hong Kong, Japan, Puerto Rico, Singapore and the UK beginning this Friday, September 19 and in more than 20 additional countries beginning on Friday, September 26 including Austria, Belgium, Denmark, Finland, Ireland, Isle of Man, Italy, Liechtenstein, Luxembourg, Netherlands, New Zealand, Norway, Portugal, Qatar, Russia, Saudi Arabia, Spain, Sweden, Switzerland, Taiwan, Turkey and United Arab Emirates.