en.Wedoany.com Reported - Southwest Airlines has released its June 2026 flight schedule, with an average daily frequency of approximately 4,139 flights, representing a 1% decrease in capacity compared to the same period last year. As the fourth-largest operator of domestic and short-haul international flights in the United States, the airline plans to operate 920 routes in June, including 856 domestic routes and 64 international routes. Although international routes account for only 3% of total flights, they represent 7% of its route network.
Southwest Airlines will concentrate on launching or resuming 20 new routes in June, with the first batch of 7 routes scheduled to commence on June 4, and the remaining 13 routes on June 6. According to analysis of Cirium Diio data, all new routes are scheduled to begin operations on these two dates, a phenomenon that is relatively common in the aviation industry.
Routes launching on June 4 include: from Austin-Bergstrom International Airport to Cincinnati (daily) and Seattle (daily); from Boston Logan International Airport to Kansas City (daily) and San Diego (daily); from Harry Reid International Airport to Cancun (up to five times weekly) and Los Cabos (daily); and from Ontario to Honolulu (daily). Two of these routes previously appeared in Southwest's route map: the Austin-Seattle route (operated 2015-2018) and the Boston-Kansas City route (operated 2013-2019).
The 13 routes launching on June 6 share the same frequency, with most operating only until early August. They specifically include: Baltimore/Washington International Thurgood Marshall Airport to Oklahoma City (weekly) and Pensacola (weekly); Dallas Love Field to Hartford (weekly); Denver to Destin-Fort Walton Beach (weekly); Indianapolis to San Juan (weekly); Kansas City to Norfolk (weekly) and Savannah (weekly); Houston Hobby Airport to Myrtle Beach (weekly); Long Beach to Bozeman (weekly); Orlando International Airport to Little Rock (weekly) and Wichita (weekly); Pittsburgh to Destin-Fort Walton Beach (weekly); and Tampa to Knoxville (weekly). Among these, three markets were previously served with nonstop flights by Southwest Airlines: Baltimore to Oklahoma City (operated 2007-2020), Baltimore to Pensacola (operated 2020-2021), and Orlando to Little Rock (operated 2013-14).
In the June flight schedule, Southwest Airlines serves 122 airports. Compared to June 2025, Anchorage, Knoxville, St. Maarten, St. Thomas, and Santa Rosa have been added, while Chicago O'Hare and Washington Dulles will lose the airline's service. Southwest Airlines will consolidate capacity at Chicago Midway Airport and Baltimore/Washington Airport.
In the month analyzed, Denver is the airport most served by Southwest Airlines, with an average of 543 daily takeoffs and landings, followed by Harry Reid International Airport (489 daily), Chicago Midway Airport (452 daily), Baltimore/Washington Airport (433 daily), and Dallas Love Field (392 daily). Due to the capacity deployment of United Airlines and Frontier Airlines at Denver Airport, Southwest Airlines accounts for 27% of the flight volume at that airport.
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