JetBlue Airways Corp. plans to hasten cost cuts by eliminating some flights, ending service to a number of cities and restructuring its leadership ranks.

JetBlue Airways is implementing broad cost-cutting measures, including cutting flights, pausing upgrades to aircraft, and reducing internal spending, as it struggles to regain profitability.

JetBlue Airways CEO Joanna Geraghty told staff that the carrier is implementing a host of new cost cuts as softer-than-expected travel demand is making break-even operating margins this year “unlikely.