Southwest Airlines and its subsidiary AirTran Airways have announced new routes as they extend their flight schedules for travel bookings through January 4, 2013.

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Southwest Airlines will operate its inaugural flight between Austin-Bergstrom International Airport and Ronald Reagan Washington National Airport on July 8. The AUS-DCA route will be Southwest’s first service to Washington Reagan National Airport.

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Southwest Airlines subsidiary AirTran Airways is launching new international service within the next 10 days from San Antonio, Austin, Orange County in California and Chicago Midway, as well as new service between Fort Lauderdale/Hollywood and San Juan, Puerto Rico.

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Together with subsidiary AirTran Airways, Inc., Southwest Airlines has reached a tentative agreement with Delta Air Lines, Inc. and Boeing Capital Corp. to sublease all 88 of AirTran’s Boeing 717 jets to Delta.

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Members of Southwest Airlines’ Rapid Rewards and AirTran Airways’ A+ Rewards frequent-flyer programs are now able to transfer their loyalty rewards between the two programs. This will allow members to combine rewards from the two airlines’ frequent-flyer programs.

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AirTran Airways will operate a daily non-stop flight between the two cities beginning on June 3, 2012, subject to Mexican government approval.

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Southwest Airlines’ schedule at Akron-Canton will offer two daily round-trips to Chicago Midway Airport and one daily round-trip to Denver. The airline will begin service to Dayton with one daily flight to Denver. Southwest’s service at Akron-Canton and Dayton will complement AirTran’s existing service.

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Southwest Airlines and subsidiary AirTran Airways have received approval from the Federal Aviation Administration for a single operating certificate, marking a key milestone in the integration of the two airlines.

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Southwest Airlines is launching new service between Detroit and Las Vegas and subsidiary AirTran Airways is starting service between Des Moines and Chicago Midway, as they extend their flight schedules for travel bookings out through November 2. Other network changes are also occurring.

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Southwest Airlines and subsidiary AirTran Airways have received authority from the U.S. Department of Transportation for AirTran to operate new international services to Cancun International Airport from both Denver International Airport and Austin-Bergstrom International Airport

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New flight schedules released by Southwest Airlines and subsidiary AirTran Airways for August 12 through September 28 show that Southwest will offer new service in nine non-stop markets, including new service from Atlanta to Norfolk and Louisville, while AirTran will launch one new route.

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Southwest Airlines has confirmed its intent to retain AirTran Airways’ operations at an additional 15 U.S. domestic airports and seven international airports, but Southwest is dropping six AirTran destinations. Over time, Southwest will convert AirTran’s flights to Southwest operations at the 53 AirTran cities it has decided to keep.

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Southwest Airlines plans to begin operating a daily round-trip between Hartsfield-Jackson Atlanta International Airport and Los Angeles International Airport on June 10. This Southwest-operated flight will be in addition to the three daily flights already operated on the route by subsidiary AirTran Airways.

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Southwest Airlines and AirTran Airways are launching service to new destinations and offering new routes as they extend their flight schedules for reservations from June 3 through August 10, 2012. Several of the new AirTran routes and destinations are international.

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The airline will begin twice-weekly BWI-Aruba service on December 17, 2011, with service on Saturdays and Sundays.

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Southwest Airlines is adding four new routes in January and a fifth in February as part of its flight schedule for January 8 through March 9, 2012.

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Southwest Airlines and new subsidiary AirTran Airways are launching additional services from Milwaukee in the first week of September.

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AirTran Airways has begun daily nonstop service between Hartsfield-Jackson Atlanta International Airport and L.F. Wade International Airport in St. George’s parish, Bermuda.

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Taken together, the two carriers’ combined 155.7 million passenger count in 2010 would rank Southwest as the second-largest airline in the world in terms of passengers carried, just behind Delta Air Lines, which carried more than 162 million.

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