Books like One Flew Over the Cuckoo's Nest
Ken Kesey
One Flew Over the Cuckoo's Nest is 311 pages, about 5 hours 42 minutes at 250 words a minute.
7 books to read next
How long each takes
A Mind to Murder 4.7 h 
Clans of the Alphane Moon 3.8 h 
The Madman's Tale 9.3 h 
The Devil in Silver 7.9 h 
The Ambler Warning 9.1 h 
Asylum Piece and Other Stories 3.9 h 
Voluntary Madness 5.2 h Bar height shows length. Estimated at 250 words a minute.