Delta had been planning to launch the new aircraft in January, but said it will now use other aircraft.
Hamilton, a disc jockey and poet, is an artist in residence at a public school. He wanted to be home the following morning for a field trip.
Delta Air Lines said on Friday it had decided to postpone the debut of its Airbus A220 due to delays in the Federal Aviation Administration certification process, which has stalled during the partial US government shutdown.
Delta had been planning to launch the new aircraft in January, but said it will now use other aircraft on the routes it had arranged to service with the A220.
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