**What Terminal Is Southwest Airlines at LGA? A Complete Guide** Travelers flying with Southwest Airlines from LaGuardia Airport often ask, “**[What terminal is Southwest Airlines at LGA](https://aerocounter.com/southwest-airlines/lga-terminal-laguardia-airport/)**?” Knowing the correct terminal can make your airport experience easier and less stressful. Southwest Airlines operates from Terminal B at LaGuardia Airport (LGA). This terminal handles Southwest passenger services, including check-in, baggage, security access, and departures. LaGuardia Airport serves numerous domestic airlines and has several passenger terminals. Therefore, confirming your airline’s terminal before leaving for the airport is important. Southwest passengers should head to Terminal B when traveling from LGA. However, travelers should always check their flight details because airport operations and gate assignments can change.