Taxi from Jiuzhaigou- Hualong - Jiuhuang airport

I'm planning a one day trip from JJG to Hualong then catching a flight back to Chengdu at night. I'm wondering if it possible to hire a taxi from JJG to Hualong, spending about 5-6 hrs in Hualong then take me to airport in the evening? How much will it costs?
thanks a lot