Carrier partners with National Renewable Energy Laboratory to advance alternative fuel exploration DALLAS, TEXAS, 2021-Apr-23 — /Travel PR News/ — Southwest Airlines Co. (NYSE: LUV) (the “Company”) announced today (Apr 21, 2021) its ongoing support of the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) to develop commercially viable and scalable sustainable aviation fuel (SAF). Southwest®… Read the full press release