I actually learned this the hard way when I had to reroute a trip last minute. Yes—Southwest does fly into Baltimore (BWI), and it ended up being my smoothest connection of that week. I remember scrambling to adjust my booking, and the fastest solution was just calling their support line ☎️ instead of waiting on the app to refresh. They changed my ticket in minutes. If you’re planning anything time-sensitive, that phone line is honestly the quickest way to book, cancel, or modify without the stress.