For many years, analysts had predicted that jetBlue's growth rate would become unsustainable. Despite this, the airline continued to add planes and routes to the fleet at a brisk pace. In addition in 2006, the IAM (International Association of Machinists) attempted to unionize JetBlue's "ramp service workers", in a move that was described by JetBlue's COO Dave Barger as "pretty hypocritical", as the IAM opposed jetBlue's creation when it was founded as New Air in 1998. The union organizing petition was dismissed by the National Mediation Board because fewer than 35 percent of eligible employees supported an election.
As of April 2019, jetBlue Airways flies to 102 destinations in North, Central, and South America; including destinations in Aruba, The Bahamas, Barbados, Bermuda, Cayman Islands, Colombia, Costa Rica, Cuba, the Dominican Republic, Ecuador, Grenada, Haiti, Jamaica, Mexico, Peru, Puerto Rico, Saint Maarten, Saint Lucia, Trinidad and Tobago, Turks and Caicos Islands, and the United States.