Doolittle was awarded the Public Welfare Medal from the National Academy of Sciences in 1959. In 1983, he was awarded the United States Military Academy's Sylvanus Thayer Award. He was inducted in the Motorsports Hall of Fame of America as the only member of the air racing category in the inaugural class of 1989, and into the Aerospace Walk of Honor in the inaugural class of 1990.
Doolittle was awarded the Public Welfare Medal from the National Academy of Sciences in 1959. In 1983, he was awarded the United States Military Academy's Sylvanus Thayer Award. He was inducted in the Motorsports Hall of Fame of America as the only member of the air racing category in the inaugural class of 1989 and into the Aerospace Walk of Honor in the inaugural class of 1990.