Southwest Airlines flights
The American low cost airline Southwest Airlines is the fourth largest airline in the world. Most of its connections are domestic – Southwest Airlines in fact has more than 100 destinations in the US. The airline has eleven operating bases, some of the biggest ones being Denver, Las Vegas, Chicago and Dallas. Southwest Airlines isn’t part of any worldwide airline alliance.
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: WN
ICAO Code: SWA