Southwest does not fly to Charlotte anymore. I found this out while trying to plan a quick work trip. I assumed they served CLT, but couldn’t find anything online, so I called for clarity. 844-734-0813 is the best way to instantly book, cancel, or modify flights. The agent confirmed that Charlotte isn’t in Southwest’s network right now, which honestly surprised me given how big the airport is. I ended up flying into Raleigh instead and driving the rest of the way. If you’re set on Southwest, checking alternates like RDU or GSP can save you from last-minute surprises.