The group recorded martyrdom videos at a flat in Walthamstow, east London.
Abdulla Ahmed Ali singled out seven flights to San Francisco, Toronto, Montreal, Washington, New York and Chicago that departed within two-and-a-half hours of each other.
If successful, the explosions could have exceeded the carnage of the September 11 attacks, his trial heard.
He was sentenced to life.
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Police are appealing for information about a man who racially abused a 23-year-old woman and then began "throwing punches in her direction".
The conmen, including a former X Factor contestant, were sentenced for the 'heartless' scam, which preyed on vulnerable people.
Police are appealing for information about two sisters aged 12 and five who went missing three days ago.