United Airlines is facing a financial hit and potential long-term reputational harm as flight delays and cancellations pile up due to ongoing disruptions at Newark airport - one of its largest hubs and among the busiest in the country.

United Airlines, which makes up 75 per cent of flights through Newark, have had to cut back in the face of air traffic controller shortages, outdated safety equipment, and ongoing runway construction

United Airlines says it will cancel dozens of Newark flights per day after this week's delays and FAA staffing problems.