In September 1939, Hill enlisted in aerial photography school at Chanute Field, Illinois.

He joined Class Flight 40-G as a flying cadet, graduating from Kelley Field, Texas in November 1940.

[4] He flew 166 combat missions during World War II, fighting in France, North Africa, Sicily, and Italy, flying British Spitfires.

The Frank A. Hill Causeway at the Woodcliff Lake Reservoir in New Jersey was dedicated July 21, 2017.

[5] Hill was awarded the Silver Star, the Distinguished Flying Cross, the Air Medal with 19 Oak Leaf Clusters, the Legion of Merit with two Oak Leaf Clusters, and five Air Force Commendation Medals.