After visiting Tiantai mtn, my family of 4 are planning to travel back to Hangzhou.

1. About the transportation, you can take direct coach from Tiantai Mountain Bus Station or North Bus Station. There are many schedules every day. The duration is about 2 hours.
2. What's your budget about your accommodation?
St. Rich Hotel is highly recommended. The price is around CNY 300 per night in usual time. The hotel provides comfortable living environment and warm service. It's located at 215 Middle Zhonghe Road. This hotel is close to Hefang Street. This street is a famous one that tourists can find all kinds of local snacks.
3. From the hotel to the airport, if by taxi, the fare is CNY 80 to 90 in the day time.
Or you can take a taxi to get to Railway Station first. It costs CNY 10 to 20. Then take the airport shuttle bus directly.