O'Neill noted there had been "a considerable amount of publicity" surrounding Beloff's trials and conviction.
The judge also said it had been impossible to select a jury last month when the vote fraud trial was to scheduled to begin. He said moving the trial to another area "would create an inconvenience and expense for all parties."
Granting Beloff's request for a continuance, O'Neill said, outweighed the importance of granting the defendants a speedy trial.
"There remains the possibility that the passage of time would permit the selection of a fair and impartial jury in this district, the Beloffs' district of preference for trial."
O'Neill also suggested there could be a plea agreement in the vote fraud case if the 3rd U.S. Circuit Court of Appeals affirms Beloff's conviction.
"There is also the distinct possibility that, should Mr. Beloff's conviction in the extortion case be affirmed on appeal, the government and the defendants may agree upon a pre-trial disposition of this case."