The San Francisco Airport Smoking Area can be useful for passengers who smoke and want to plan their airport visit carefully. Travelers should understand that smoking is subject to specific airport restrictions and should only take place in approved locations. Before visiting a designated area, passengers should check whether it is located inside or outside the secure zone. Leaving security may require additional screening before returning. Travelers should therefore allow sufficient time for their flight schedule. Monitoring boarding information and following airport signage can help passengers enjoy a permitted break without creating unnecessary delays before departure.