Radical Muslim cleric Abu Hamza and four other terror suspects can be extradited to the US from Britain, the European Court of Human Rights ruled on Tuesday.
Judges in the French city of Strasbourg rejected the men’s claims that detention in a high-security US jail amounts to degrading and inhumane treatment.
The ruling becomes final if there is no appeal within three months.
Abu Hamza, 53, is serving a seven-year sentence for soliciting murder and inciting hatred.
The Egyptian-born preacher became infamous in the UK for his sermons at London’s Finsbury Park Mosque.
In the US, Hamza faces charges that he provided cash and troops for the Taliban and ran a terrorist training camp in Oregon.
He is also accused of aiding a Yemeni kidnapping plot that left four dead in 1998.