Hello, I will arrive from Europe - Austria - Wien by Air China on 15 Aug 6.25 am at PEK Terminal 3.

You can take airport express to get to Dongzhimen Station, Exit C. It takes around 30 mins. And the ticket fare is CNY 25 per person. After arriving, walk southeast around 0.6 miles to find the destination. By the way, the earliest schedule of AE in T2 is at around 06:20. :)