Southwest Airlines is introducing four new routes in its latest flight schedule, which it has newly extended for itself and subsidiary AirTran Airways for...

Southwest Airlines is introducing four new routes in its latest flight schedule, which it has newly extended for itself and subsidiary AirTran Airways for travel through November 1.

The four new routes include the first Southwest Airlines service from Des Moines International Airport (IATA code DSM) to Las Vegas (LAS), the carrier offering a daily round-trip on the route from September 27.


The first Southwest Airlines aircraft ever to operate to Atlanta touches down on February 12, 2012 at Hartsfield-Jackson Atlanta International Airport

The first Southwest Airlines aircraft ever to operate to Atlanta touches down on February 12, 2012 at Hartsfield-Jackson Atlanta International Airport

 

Southwest Airlines will also take over AirTran Airways’ existing route between Fort Lauderdale Hollywood International Airport (FLL) and San Juan’s Luis Muñoz Marin International Airport (SJU), offering twice-daily service from September 29. Southwest will operate its first service to San Juan, Puerto Rico’s capital, on April 14 with non-stop service from both Tampa Bay and Orlando.

In the extended schedule, AirTran Airways introduces additional seasonal flying to and from Florida. Southwest is also resuming seasonal service in three markets.

Southwest’s other new routes include a daily round-trip between Nashville (BNA) and Pittsburgh (PIT); a daily round-trip between Atlanta (ATL) and San Diego (SAN); and a daily round-trip between Jacksonville (JAX) and Chicago Midway Airport (MDW).

Southwest Airlines unveiled its 'Florida One' specially theme-painted Boeing 737 on April 23, 2010

Southwest Airlines unveiled its ‘Florida One’ specially theme-painted Boeing 737 on April 23, 2010

 

To promote the new service, the carrier is offering introductory one-way fares between Atlanta and San Diego (from $115), Nashville and Pittsburgh (from $109), Des Moines and Las Vegas (from $125) and Jacksonville and Chicago (from $149). These fares are available through March 17 and are for travel between September 27 and October 31, 2013.

Travel blackout dates for these introductory fares are October 10, October 11, October 14 and October 19. Other conditions, including travel restrictions on some days of the week, apply on some of the routes.

Southwest is also offering introductory one-way fares from $89 between Fort Lauderdale and San Juan, available through April 14. These fares are for travel between September 29 and October 31, 2013.

The Boeing 737-700 was the second aircraft type that AirTran ordered. Eventually AirTran would order more than 100 Boeing 737-700s before the carrier was purchased by Southwest Airlines

The Boeing 737-700 was the second aircraft type that AirTran ordered. Eventually AirTran would order more than 100 Boeing 737-700s before the carrier was purchased by Southwest Airlines

 

Travel blackout dates under the introductory fares for this route are October 12 and October 14.

Southwest’s returning seasonal markets include a daily round-trip between Indianapolis and Orlando; a daily round-trip between Jacksonville and Las Vegas; and a daily round-trip between Orlando and Minneapolis-Saint Paul.

AirTran Airways’ new seasonal markets include Orlando-Houston Hobby; Orlando-New Orleans; Fort Myers-Columbus; and Fort Lauderdale Hollywood-Pittsburgh.