JetBlue has shed many of its business-focused routes from the Northeast and has instead pointed its planes at Florida. That's a tried-and-true move for the airline, which originally launched 25 years ago with what's essentially the same network strategy.

JetBlue Airways is adding more Florida flights this winter, with some tickets as low as $49. JetBlue Airways is adding more Florida flights this winter, with some tickets as low as $49.