"No End in Sight" has an approval rating of 96% on review aggregator website Rotten Tomatoes, based on 98 reviews, and an average rating of 8.15/10. The website's critical consensus states, "Charles Ferguson's documentary provides a good summary of the decisions that led to the mess in post-war Iraq, and offers politically interested audiences something they'd been looking for: a lowdown on the decision making". The film holds a Metacritic score of 89 out of 100, based on 28 reviews, indicating "universal acclaim".