RELATED: Shooter's widow faces federal terrorism charges
Noor Salman filed a notice to appeal Wednesday with the 11th U.S. Circuit Court of Appeals in Atlanta.
A federal judge in Orlando, Florida, two weeks ago reversed the decision by a magistrate judge in Oakland, California, and ordered Salman jailed pending trial.
Salman has pleaded not guilty to charges of aiding and abetting, and obstruction of justice.
RELATED: Wife of Pulse shooter charged with aiding and abetting
Salman's husband, Omar Mateen, pledged allegiance to the Islamic State during the attack at the Pulse nightclub last June 12. The deadliest mass shooting in recent U.S. history left 49 people dead and dozens more wounded.