Transportation
- Second Avenue Subway, a subway line in New York City
- SAS, IATA airport code for Salton Sea Airport near Salton City, California, USA
- SAS Group, Scandinavian Airlines System Group, an airline company based in Stockholm, Sweden
- SAS or Scandinavian Airlines, an airline company in Denmark, Norway and Sweden
- SAS Cargo Group, a cargo company in Denmark, Norway and Sweden
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