The British writer and literary critic lost his battle with pneumonia, a complication of his oesophageal cancer, at a Texas hospital at the age of 62.
Neeson reveals he had considered flying out to visit Hitchens before his passing - and he'll always regret never acting upon his impulse.
He tells Britain's Metro newspaper, "I miss Christopher Hitchens very much, I loved his writing and his spirit and I wish I'd met him. Before he died, I even thought about flying to see him and knocking on his door. I wish I had."