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Southwest Airlines Co. is expanding beyond the continental United States with flights to the Caribbean, beginning July 1.
The airline began selling tickets on Monday for flights to Aruba, the Bahamas, and Jamaica from Atlanta, Baltimore, and Orlando. Those routes are currently flown by AirTran Airways, which Southwest bought in 2011.
Southwest carries more passengers in the United States than any other airline, but among the largest US carriers it alone doesn’t fly beyond the nation’s borders. Southwest has been talking about going international for years, but ihas been held back by technological limits to its reservations system, which it has been upgrading.