What terminal is southwest airlines in?

Terminal B

Terminal B. Terminal B on Airport Blvd. West with gates B4-B23 is currently served by Aeromexico, Alaska, Hawaiian, Horizon, Southwest  & Volaris (passenger pickup for Southwest Arrivals are at Doors 1& 3). TB houses on level 1 the baggage claim area, on level 2 the ticketing area with check-in counters, and on level 3 some food & drink  and retail concessions. Levels 1, 2 & 3 are in the pre-security area. High-tech exit lanes were installed recently reducing operational costs.  TB is connected to both the Hourly B carpark and the A& B parking garage.  NOTE: To get to your gates, you need to go to Level 3 (the APM level), where you take the APM shuttle train to your gate: The gate area houses to the right gates B4-B11 - to the left gates B12-23.    Level 3 also leads down to the garage/walkway to Terminal A.