Southwest Airlines is expanding service this year from St. Louis to three destinations including new non-stop service to San Francisco International Airport (SFO). The daily roundtrip service to SFO from Lambert-St. Louis International Airport (STL) will begin September 30, 2014.

Also this year, Southwest announced it is expanding service from STL to Ronald Reagan Washington National Airport (DCA) and Los Angeles International Airport (LAX). Starting June 8, service to LAX will increase from two daily roundtrips to three daily roundtrips. The DCA service will also increase from two daily flights to three daily flights beginning November 2.

“We’re excited about the additional non-stop service to SFO because we have strong flow of traffic there and we think that market will do well,” said Lambert Director Rhonda Hamm-Niebruegge. “The increased flights to Washington DC and Los Angeles are just as valuable for this region and we applaud southwest for continuing to look at new opportunities for growth that increases connectivity to and from our region.”

Southwest is Lambert’s largest carrier currently operating 91daily departures to 33 non-stop destinations. Its wholly-owned subsidiary, Air Tran Airways, operates another two flights a day.