From Hanoi we are planning the fly into Hui, arriving at around 10am.
The plan is to stay there 2 nights before transferring by private car to Hoi An.
We’ll stay there 2 nights as well before taking a late 6pm flight to Siem Reap out of Da Nang.
We’d also like to visit My Son.

My question is: is this too much planned? Is time spent between Hue and Hoi An correct or should we only be doing one night in Hue and three in Hoi An?

If you are going to visit the sites outside Hue as well as the town itself you need at least one full day, which requires two nights. My Son is best done by car and driver early in the day before the tour groups get there. Or perhaps late in the day.

3 days in Hue:

• 1st day: Hue Imperial City, Hue Museum of Royal Fine Arts, Perfume River
• 2nd day: tombs, Thien Mu pagoda, Vong Canh Hill, Ngu Binh Mountain
• 3rd day: Bach Ma mountain, Lap An lagoon, Lang Co beach

3 days in Hoi An:

• 1st day: Japanese bridge, Phuc Kien assembly hall, Phung Hung ancient house
• 2nd day: Kim Bong village, Thanh Ha pottery village, Tra Que vegetable village,
• 3rd day: Cu Lao Cham, My Son