Cheap flights to and from Birmingham, Phoenix, Little Rock, Burbank, Los Angeles, Oakland, Ontario, Sacramento, San Diego, San Francisco, San Jose, Santa Ana/Orange County, Denver, Hartford/Springfield, Massachusetts, Washington, D.C., Fort Lauderdale, Fort Myers, Jacksonville, Orlando, Palm Beach, Tampa, Boise, Chicago, Indianapolis, Louisville, New Orleans, Baltimore, Detroit, Jackson, Kansas City, St. Louis, Omaha, Las Vegas, Reno, Manchester, Albuquerque, Albany, Buffalo, Long Island/Islip, Raleigh-Durham, Cleveland, Columbus, Oklahoma City, Tulsa, Portland, Philadelphia, Pittsburgh, Providence, Nashville, Amarillo, Austin, Corpus Christi, Dallas, El Paso, Harlingen/South Padre Island, Houston, Lubbock, Midland/Odessa, San Antonio, Salt Lake City, Norfolk, Seattle, Spokane.

Southwest Airlines is an American low-cost airline based in Dallas, Texas, with its largest focus city at Las Vegas' McCarran International Airport. It focuses on the following city airports - McCarran International Airport, Chicago Midway International Airport, Phoenix Sky Harbor International Airport, Baltimore-Washington International Airport, Oakland International Airport, William P. Hobby Airport, Dallas Love Field, Los Angeles International Airport, Orlando International Airport, San Diego International Airport, Nashville International Airport, Denver International Airport.

As of June 2008, Southwest Airlines flies to 64 destinations throughout the United States. The airline added its 64th destination on August 26, 2007 when it resumed service from San Francisco, California.

Online booking can be made at the official website of Southwest Airlines.

References :
Southwest Airlines website - http://www.iflyswa.com
Southwest Airlines Wikipedia - http://en.wikipedia.org/wiki/Southwest_Airlines