Austrian authorities said that they have approved the extradition of a Pakistani and an Algerian on suspicion that they planned to take part in the terrorist attacks in Paris in 2015.
A court in the city of Linz on Wednesday rejected the appeal of the 35-year-old Pakistani Mohammad U against being handed over to France.
The 29-year-old Algerian suspect Adel H had not appealed.
Their full names were not released because of Austrian privacy laws.
The two men came to Greece in October, travelling on the same migrant boat as some of the alleged Paris attackers, according to investigators.
The Pakistani and the Algerian did not make it to Paris because Greek authorities noticed that they had forged passports and detained them for three weeks.
They subsequently travelled to Austria, where police arrested them last December in a shelter for asylum seekers.
French investigators suspect them of belonging to the Islamic State extremists who killed 130 people at several venues on Nov. 13.
Austrian Justice Minister, Wolfgang Brandstetter said that the duo had been in contact with the Paris attackers.