United Airlines serves both domestic and international flights out of San Francisco International Airport's (SFO) Terminal 3. Modern and well-appointed, Terminal 3 offers eating options, lounges, and self-check-in kiosks. Before their flight, passengers can enjoy a range of eateries, cafes, and shopping. CLEAR and TSA PreCheck are options for accelerated security checks. With easy-to-follow instructions and conspicuous signage, customers flying with United Airlines SFO Terminal will board at gates in Terminal 3. Options for ground transportation include BART public transportation, ride-sharing services like Uber and Lyft, and rental vehicles. The terminal has a handy location for baggage claim.