Terminals · DCA
What terminal is Southwest at DCA?
Southwest departs from Terminal 1 at Ronald Reagan Washington National Airport (DCA). We verified this against the airport's own sources on June 27, 2026 — airlines do move terminals, so we date every check.
Terminal 1
DCA TSA wait times todayLive security waits by checkpoint, so you know when to leave for Terminal 1.What terminal is Southwest at DCA?
Southwest departs from Terminal 1 at Ronald Reagan Washington National Airport (DCA). Terminal 1 (formerly Terminal A / historic terminal), Concourse A (gates A1–A9). Southwest has the largest presence in Terminal 1. Terminal 1 has its own dedicated security checkpoint; not connected post-security to Terminal 2. Verified June 27, 2026.
Where does Southwest check in at DCA?
Terminal 1 ticketing hall. Bag drop usually closes 45 minutes before departure, so build that into your morning.
Did Southwest move terminals at DCA?
Not that we've found. We confirmed Southwest departs from Terminal 1 at DCA as of June 27, 2026. Airlines do shuffle terminals, so we re-check and date every change.
Not sure which building that is? See all DCA terminals with the airport map and how to get between them. Then let your Leave-By Time count backward from your flight — today's DCA security wait, your drive, and the walk to your gate — so you leave with room to breathe.