When planning a trip that begins or ends in the vibrant city of San Francisco, knowing your way around the airport can make all the difference. San Francisco International Airport (SFO) is one of the busiest airports in the United States, serving millions of passengers every year. For those flying with Frontier Airlines, understanding how the airline operates at SFO—especially which terminal it uses—is essential for a smooth travel experience. In this comprehensive guide, we will explore everything you need to know about the Frontier Airlines SFO Terminal including check-in tips, terminal services, and more.

Overview of Frontier Airlines

Frontier Airlines is a U.S.-based ultra-low-cost carrier headquartered in Denver, Colorado. Known for its affordable pricing structure, Frontier primarily serves domestic destinations across the United States, along with limited international service to nearby countries such as Mexico and the Caribbean. The airline operates under a no-frills model, offering low base fares while charging additional fees for extras like seat selection, carry-on bags, checked baggage, and onboard snacks or drinks.

Despite its budget-friendly approach, Frontier has become a popular choice for travelers who prioritize price and flexibility. Its presence at major airports—including San Francisco—makes it accessible to a wide range of passengers.

Where is Frontier Airlines Located at SFO?

The Frontier Airlines SFO is Terminal 1, also known as the Harvey Milk Terminal 1. This terminal has undergone significant renovations in recent years, making it one of the most modern and passenger-friendly terminals in the United States. Frontier shares Terminal 1 with other domestic carriers, offering a convenient and comfortable experience for those flying on a budget.

Terminal 1 is equipped with spacious gate areas, modern security checkpoints, high-quality restrooms, and a variety of food and retail options. Whether you're grabbing a bite to eat before your flight or picking up last-minute travel essentials, Terminal 1 delivers both function and comfort.

Getting to Terminal 1 at SFO

San Francisco International Airport is well-connected to the Bay Area and beyond. Whether you’re arriving by car, public transit, or rideshare, reaching Terminal 1 is relatively easy:

• By Car: Passengers can be dropped off directly at Terminal 1 using the Departures curbside lane. For those driving themselves, long-term and short-term parking garages are available within walking distance or via the AirTrain shuttle.
• By BART (Bay Area Rapid Transit): BART offers direct service to SFO, dropping passengers at the International Terminal. From there, travelers can take the free AirTrain to Terminal 1.
• By Rideshare or Taxi: Both Uber, Lyft, and traditional taxis are allowed to pick up and drop off passengers at Terminal 1. Designated zones are clearly marked.

Check-In and Baggage Information

When flying with Frontier Airlines from SFO, check-in can be completed in several ways:

• Online Check-In: Frontier encourages passengers to check in online or through the airline’s mobile app up to 24 hours before departure. This is the fastest and most efficient method, especially if you're traveling light.
• Airport Kiosks: Self-service kiosks are located near the Frontier check-in counters at Terminal 1. Passengers can print boarding passes and pay for baggage here.
• Ticket Counters: For those who need in-person assistance or have special travel requirements, Frontier’s check-in counters at Terminal 1 are available several hours before each flight.

Baggage Policy:

Frontier charges separately for carry-on and checked luggage, and prices can be significantly higher at the airport. It’s always more cost-effective to prepay for baggage online. Personal items such as small backpacks or handbags are included in the base fare, but anything larger typically incurs a fee. Be sure to measure your bags in advance and follow weight limits to avoid extra charges.

Security Screening at Terminal 1