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That’s because air traffic controllers and the Transportation Security Administration will still be on the job.

A federal shutdown will hit flyers in a variety of ways, potentially leading to long security queues, and delays caused by unpaid air traffic controllers choosing to stay home rather than work for free.

Although the fight was over spending on the president's proposed US-Mexico border wall, it ended because federal air traffic controllers – who were working without pay – began staying home, threatening massive disruption to US air travel.

The stock controller, who is also Unite shop steward, said Leadec had set up a foodbank to support its workers facing extreme hardship.

Air traffic control audio obtained by the BBC recorded controllers urgently and repeatedly telling the Spirit Airbus A321 to keep its distance.