 Nyorai kupfuurira kweiyi ndima - Flynn akadzidza muzvikoro zvehurumende uye zveparishi, La Salle Academy, Fordham Law School, uye Massachusetts Institute of Technology, achidzidza nezvekufamba nendege dzechiuto pachikoro chokupedzisira. Muna 1916, akashanda ne69th Regiment pamuganhu weMexico. Muna 1917, muHondo Yenyika I, akaenda nechikepe kuFrance. Akazoendeswa kuFoggia, Italy, kunotangazve kudzidziswa kubhururuka mumusasa waitungamirirwa naMeya weNew York City Fiorello La Guardia, panguva iyoyo aiva kaputeni. Akabva adzokera kuFrance uye akapiwa basa mu28th Squadron yeSecond Pursuit Group. Akaona basa riri mberi. PaZuva Rokuzorora, ndege yake yakapfurwa pedyo nemitsetse yeAmerica. Akanunurwa asina kukuvadzwa uye akaudzwa kuti kwakanga kwaziviswa rugare. Aiva nechinzvimbo cheMutevedzeri Wokutanga muAmerican Air Service, Flying Officer. 