May I know the Taxi fare from Juzhaigou-Huanglong Airport to Huanglong to Juizhaigou ?

Better to hire the same taxi. Usually it costs 400RMB to hire a van from Airport-Huanglong-Jiuzhaigou and the vehicle condition is better than taxi. If you take taxi, you can try to negotiate the price with the driver in advance.

Forget the time of your arrival at 09:15 am on 26 Dec. Our flight schedule from Chengdu to JZG at 06:30 am. but was delayed by 4 hours as no planes could land in JiuzhaiHuangLong airport because of Black Ice ( the runway is covered by slippery ice ).
The cost from the airport to JZG by van is RMB 40 but if time is of an essence the taxi cost is RMB 380 and it takes about 2 hrs. This taxi driver is very polite & reliable, his mobile is 15196206 or 101300101.
If you hire a taxi for a day at RMB 800 for JZG to HuangLong, you can leave it in the taxi, just write down the registration no. & the driving licence.