Airline partnerships can be beneficial if done correctly, particularly for the smaller party in the arrangement. Speculation about one in the works has benefited the shares of veteran carrier JetBlue (JBLU 0.57%) across the past few trading sessions despite the company reporting a loss-making quarter on Wednesday.Investors decided they liked what they heard, on balance. As of late Thursday night, the company's stock price was climbing nearly 13% higher week to date, according to data compiled by S&P Global ...