A plan by JetBlue Airways to sign a domestic partnership with another airline faces opposition from its pilot union, which has warned the move could "fundamentally reshape" the U.S. carrier and impact the future of its workers.

In this week's airline news, Reuters reports that JetBlue Airways and United Airlines are close to some form of partnership that's expected to at least include frequent flyer reciprocity; American Airlines said it ended talks with JetBlue about a new kind of deal and filed suit to recover money it says JetBlue owes it following the end of their Northeast Alliance;

A plan by JetBlue Airways (NASDAQ:JBLU) to sign a domestic partnership with another airline reportedly faces opposition from its pilot union, which has warned the move could "fundamentally reshape" the U.