Airline publishes flight schedule through Nov. 4, 2023, offering up to 4,575 flights a day; Adds more international service from Kansas City, Mo.; Plus, Southwest goes to the Northwest from Long Beach with nonstop service to Boise, Idaho, and Portland, Ore.  DALLAS, TX, 2023-Mar-11 — /Travel PR News/ — Southwest Airlines Co. (NYSE: LUV) is preparing… Read the full press release