The Turkey-bound flight with 256 people on board landed safely at Halifax International Airport in eastern Canada.
Canadian police said they were investigating but would not comment on the details of the threat.
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The Royal Canadian Mounted Police force for Nova Scotia said on its Twitter feed that the bomb threat was received at 22:50 local time (02:50 GMT) - by which time the flight had already taken off from John F Kennedy airport, according to flight tracking sites.
It landed in Halifax at 12:53 local.
Last Tuesday, two Air France flights from the US to Paris were diverted because of bombs threats.