Are there no flights on July, 25th 2018 from Chengdu to Jiuzhaigou?

Well, I didn’t find the flights for sale. But you can take a bus from Xinanmen Bus Station straight to JIuhzaigou at 8:00am. Or from Chadianzi Bus Station at 8:30. It takes about 9h.
To Songpan, you can take a bus from Chadianzi Bus station, the bus departs at 7:30, 11:30 and 13:00.It takes 7-8h.

Thank you David.
But do you (or others) know there is a faster way. I thought airplane (somewhere I read it) or otherwise train??? Bus takes a whole day.

Train between the two places will be put into service by 2020. Flights are available during the peak season only as I remember. You may wait for a while and search that again. Otherwise, the long-distance bus is your only choice.

David, thank you. I think I'll wait.
Loes