Detmer had his NFL career extended for a few days by signing with the Minnesota Vikings on November 6, 2007. The Vikings needed a second quarterback behind Brooks Bollinger while Tarvaris Jackson and Kelly Holcomb recovered from injuries. Detmer was reunited with Vikings head coach Brad Childress, who had been with the Eagles as the offensive coordinator. Detmer's stint with the Vikings was his first professional experience not in an Eagle uniform. The Vikings released Detmer on November 10, 2007, once Holcomb had recovered sufficiently to play.