Such was the prevailing mood among filmgoers in 1943 that God Is My Co-Pilot was allowed to show a spiritual shaft of light in the sky and several scenes of enemy pilots spitting up blood when shot down by American bullets. The film was based on the best-selling novel by fighter pilot Col. Robert Lee Scott Jr., who fought in the Pacific during World War II. At 34, Scott was told he was too old to fly in combat, but he proved his worth as a member of the Flying Tigers. Dennis Morgan plays Scott with pious sincerity, while the more traditional "regular guy" roles went to such stalwarts as Dane Clark and Alan Hale. Like most aerial combat films of the era, God Is My Co-Pilot soars highest when its characters stay off the ground and away from all that pontificating dialogue.
~ Hal Erickson, All Movie Guide