Travelers flying with Frontier Airlines out of San Francisco International Airport (SFO) will be departing from the modern and redesigned Terminal 1, also called the Harvey Milk Terminal. Whether you are traveling for the first time or you're a frequent flyer, knowing what to expect at the Frontier Airlines SFO Terminal can make your journey more relaxed and hassle-free.

This expanded blog takes you through every important detail—transportation, check-in, security, dining, services, tips, and frequently asked questions—so that you're fully prepared before stepping foot in the terminal.

Where Is Frontier Airlines at SFO

Frontier Airlines operates exclusively out of Terminal 1 at San Francisco International Airport. This terminal has undergone major upgrades in recent years and now offers a cleaner, more intuitive layout with modern amenities and plenty of natural light. Terminal 1 mainly handles domestic flights for low-cost carriers, including Frontier Airlines.

If you’re flying out of SFO with Frontier, all check-in, security, and boarding will take place within Terminal 1’s Boarding Area B.

How to Get to Terminal 1 at SFO

Parking and Driving

Driving to the airport and parking at Terminal 1 is fairly straightforward. The most convenient option is Garage B, which is located closest to the terminal. It offers both hourly and daily parking options. Clear signage will lead you from the garage to the terminal's departure level in just a few minutes.

Public Transit and BART

The Bay Area Rapid Transit (BART) system connects directly to SFO. From the BART station, take the free AirTrain Blue Line to Terminal 1. The AirTrain runs 24/7 and includes onboard announcements, so you’ll always know when you’re nearing the correct stop.

Rideshare and Taxis

Uber, Lyft, and taxi services drop off passengers on the upper-level departures curb at Terminal 1. For pickups, you'll find a clearly marked rideshare zone outside the terminal, typically on the arrivals level.

Check-In Options at Frontier Airlines SFO Terminal

Online and Mobile Check-In

Frontier recommends checking in online or via the Frontier mobile app at least 24 hours before your flight. You can get your boarding pass and pay for any luggage in advance, saving time once you arrive at SFO.

In-Person Check-In

If you prefer checking in at the terminal, Frontier provides:

• Staffed counters for assistance and checked baggage.

• Self-service kiosks to print your boarding pass and luggage tags.

These are located in the check-in hall of Terminal 1, near the entrance to the security area.

Baggage Information and Policies

Frontier charges fees for both carry-on and checked baggage. You can save money by paying for bags in advance online. Checked bags must not exceed 50 lbs or 62 linear inches (length + width + height).

Frontier also has strict size limits for personal items. Double-check the dimensions before arriving, or you may end up paying additional fees at the gate.

Security Screening at Terminal 1

Terminal 1 has an efficient and organized TSA checkpoint. Multiple lanes are available, including a separate line for TSA PreCheck members. The wait times are usually manageable, though they can be longer during peak travel hours.

Tips for Smoother Screening:

• Remove laptops and liquids before reaching the scanner.

• Wear easy-to-remove shoes.

• Avoid packing restricted items in your carry-on.

• Have your ID and boarding pass ready for inspection.

What You’ll Find After Security

Once you pass through security, you’ll arrive in Boarding Area B. This area serves several airlines and is packed with places to eat, shop, and relax.

Dining Options

Here are some food and beverage options you’ll find near Frontier gates:

• Amy’s Drive Thru – Healthy vegetarian and vegan-friendly fast food.

• Dogpatch Bakehouse & Caffè – Baked goods, breakfast, and espresso.

• Napa Farms Market – Local snacks, gourmet sandwiches, and grab-and-go meals.

• Green Beans Coffee – Great for coffee lovers looking for something quick before boarding.

Shopping and Essentials

Terminal 1 also includes convenience shops for snacks, books, electronics, and travel accessories. You’ll also find hydration stations where you can refill your own water bottle after security.

Terminal 1 Services and Amenities

• Free Wi-Fi is available throughout Terminal 1.

• Seating with power outlets is available at most gates.

• Restrooms are clean and well-maintained.

• Family restrooms and nursing rooms are provided for travelers with children.

• ADA accessibility is fully supported with ramps, elevators, and wheelchair access.

If you need assistance, ask a Frontier Airlines representative or an SFO ambassador. Help desks are located throughout the terminal.

Boarding Your Frontier Flight

Frontier boards passengers by zones. Watch for gate announcements and screen updates, and have your boarding pass and ID ready.

Frontier does not participate in any major frequent flyer lounge programs, so make use of the public seating areas near your gate while you wait.

Travel Tips for Frontier Flyers at SFO

1. Arrive at least 2 hours early for domestic flights.

2. Check in online and pre-pay for bags to avoid delays and extra fees.

3. Pack light to minimize costs—only a personal item is included in the basic fare.

4. Use the AirTrain if transferring from other terminals or the BART station.

5. Bring snacks and entertainment as Frontier offers limited onboard services.

6. Keep your boarding pass on your phone to simplify check-in and boarding.

7. Download the SFO app or Frontier app for real-time updates on gates and delays.

Frequently Asked Questions About the Frontier Airlines SFO Terminal

Which Terminal Does Frontier Use at SFO?
Frontier Airlines operates from Terminal 1 at San Francisco International Airport.

Does Frontier Have a Lounge at SFO?
No, Frontier does not offer lounge access. However, Terminal 1 has comfortable seating and good Wi-Fi for all passengers.

Is There Free Wi-Fi in the Terminal?
Yes, SFO provides free Wi-Fi in all terminals, including Terminal 1.

How Do I Get to Terminal 1 from the BART Station?
Take the AirTrain Blue Line from the BART station directly to Terminal 1.

Can I Check In with a Mobile Boarding Pass?
Yes, Frontier accepts mobile boarding passes at SFO. Make sure your phone is fully charged or print a paper copy as backup.

Final Thoughts on Frontier Airlines SFO Terminal

Flying with Frontier Airlines from San Francisco International Airport can be a smooth and cost-effective experience when you plan ahead. Terminal 1 is one of the most recently updated terminals at SFO, offering a bright, organized layout with plenty of services for today’s travelers.

From fast check-in options and a modern security area to clean restrooms and excellent food choices, the Frontier Airlines SFO Terminal is well-equipped for your next journey. With a few simple preparations—like checking in early and understanding baggage fees—you’ll be able to relax and enjoy the experience from curb to gate.

Whether you’re heading to Las Vegas, Denver, or another destination in Frontier’s growing network, Terminal 1 at SFO gives you the right start. Safe travels!