San Francisco International Airport (SFO) is a key west coast hub, known for its efficiency, facilities, and sustainability efforts. For travelers flying with Sun Country Airlines in 2025, the Sun Country SFO terminal experience centers around the recently redeveloped Harvey Milk Terminal 1, the airport’s domestic terminal that focuses on comfort, convenience, and sustainability.
Arrival and Check-In at Harvey Milk Terminal 1
When arriving at SFO, Sun Country passengers head to Harvey Milk Terminal 1 – a terminal that underwent extensive renovations, reopening in mid-2024 with a sleek, modern design. The check-in counters for Sun Country are clearly indicated, providing a hassle-free start to your travel day. Visitors will appreciate the spacious check-in lobby, ample seating, and helpful staff ready to assist with baggage and travel questions.
To save time, Sun Country encourages online check-in and digital boarding passes. For those needing to check luggage, dedicated counters and efficient baggage handling facilitate smooth processing.
Security Procedures
After check-in, proceeding to security screening is streamlined in Terminal 1 with enhanced TSA lines, including expedited lanes for eligible travelers like TSA PreCheck members. The terminal's layout reduces congestion and makes navigation intuitive. With digital signage and friendly staff, moving through to the gates is straightforward.
Amenities and Services
Terminal 1 offers a variety of amenities that enrich the passenger experience. A diverse range of dining outlets—from grab-and-go cafes to sit-down restaurants—ensures travelers find something to suit their tastes. For shopping enthusiasts, retail stores offer a mix of travel essentials and unique San Francisco souvenirs.
Complimentary Wi-Fi is available airport-wide, keeping travelers connected. Charging stations are strategically placed, allowing passengers to power their devices while waiting. Family-friendly facilities, including nursing rooms and kid zones, make the terminal welcoming to all travelers.
Gates and Boarding
Sun Country flights typically depart from Gates B1 to B18 within Terminal 1’s single concourse, designed to accommodate domestic and short-haul flights efficiently. Boardings are managed with clear announcements and signage, helping travelers reach their gates with ease.
Comprehensive seating areas near the gates provide comfort and charging outlets. Clean and well-maintained restrooms, vending machines, and information desks are conveniently located throughout the terminal.
Connectivity and Transportation
Harvey Milk Terminal 1 connects easily to the rest of SFO’s terminal network via the AirTrain automated people mover. This service runs 24/7 and links terminal lobbies, concourses, parking garages, and the BART station, the rapid transit hub connecting SFO to downtown San Francisco.
Ground transportation options ranging from taxis and ride-shares to rental cars and airport shuttles are readily accessible outside Terminal 1. Ample parking, including short- and long-term facilities, is also available nearby.
Traveler Tips for Sun Country Passengers at SFO
Arrive early to allow for check-in and security, especially during peak travel times.
Utilize Sun Country’s online check-in and download your boarding pass in advance.
Explore terminal dining and shopping to enhance your wait time.
Use the AirTrain for seamless transfers if connecting to other terminals or ground transit.
Keep an eye on gate announcements and flight updates via mobile apps or airport displays.
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