Oct. 22, 2009 (United Press International) -- Southwest Airlines (NYSE:LUV) says it will open six new destinations to travelers in St. Louis, backfilling four cities to be left open by American Airlines. (NYSE:AMR)

American Airlines has said it would cut flights from Lambert-St. Louis International Airport to San Diego, Nashville, New Orleans and Raleigh-Durham, N.C., the St. Louis Post-Dispatch reported Thursday.

Those flights will be cut next summer, the newspaper said.

Southwest said it will pick up those destinations, and add Los Angeles and Seattle, too.

The airline will be eligible for some of the $1.7 million incentive program the city's airport authority has made available to entice more business to Lambert-St. Louis International, the newspaper said.