JetBlue Airways Corp. shares rose 1.8% in premarket trade Tuesday, after the company beat profit estimates for the first quarter. The airline said it had net income of $88 million, or 27 cents a share, in the first quarter, up from $82 million, or 24 cents a share, in the year-earlier period. Revenue rose to $1.754 billion from $1.600 billion. The FactSet consensus was for EPS of 22 cents and revenue of $1.759 billion. Revenue per available seat mile grew 6.1% in the quarter, while operating expenses per available seat mile, excluding fuel (CASM ex-fuel) rose 3.1%. For the second quarter, the company is expected capacity to increase 5% to 7%, and for the full year, it expects capacity to grow 6.5% to 8.5%. RASM growth is expected to be down 3% to flat in the second quarter, while CASM ex-fuel is expected to grow 2% to 4%. Shares have fallen 8% in the last 12 months, while the S&P 500 has gained 12%.