The American low cost airline JetBlue commenced its operations in 2000 and today they offer flights to many destinations in North America. The airline has six focus cities – Boston, Fort Lauderdale, Los Angeles, New York, Orlando and San Juan. They have cooperations with several large airlines, but aren't part of any of the major global alliances.
An airline hub is an airport where the airline has a heavy presence and normally some kind of headquarters. On the other hand, a focus city is a destination where the airline operates limited point-to-point routes. In these cities, the airline doesn’t necessarily need to have an office (even though this sometimes is the case). Many low-cost airlines don't use the definition 'hub' but instead define their main airports of operations as an operating base.
IATA Code: B6
ICAO Code: JBU