A JetBlue Airways jet comes in for a landing after flights earlier were grounded during an FAA system outage at Laguardia Airport in New York City, New York, U.S., January 11, 2023.JetBlue Airways shares jumped 20% on Tuesday after the airline posted a surprise profit and said it would defer another $3 billion in aircraft spending through 2029 to improve cash flow.The New York-based airline has been cutting unprofitable routes and reducing costs to get back to profitability as it faces higher expenses and a ...