I will be making an international connection to BA677 [IST-LHR] next month. On my previous trip to IST, my recollection is that of a very modern facility and would presume that it is possible to stay airside without clearing immigration. Is it possible to check-in for the BA flight in the transit area?

fyi, I tried to visit the IST web site, www.ataturkairport.com , but it does not seem to work.