Frontier Airlines at SFO: Everything You Need to Know About Terminal,

Traveling with Frontier Airlines from San Francisco International Airport (SFO)? Whether you’re a first-time flyer or a frequent traveler, understanding the terminal layout, check-in options, security process, baggage policies, and available airport amenities can significantly enhance your travel experience. Frontier Airlines operates from Terminal 1 (Harvey Milk Terminal) at SFO, a newly upgraded terminal designed for efficiency, comfort, and convenience.

If you’re looking for check-in counters, baggage claim locations, security screening details, dining options, or transportation from the airport, this comprehensive guide will help you navigate your way smoothly. For more details on flights, terminal services, and check-in procedures, visit the Frontier Airlines SFO Terminal.

Which Terminal Does Frontier Airlines Use at SFO?

Frontier Airlines operates from Terminal 1 (Harvey Milk Terminal) at San Francisco International Airport (SFO). This terminal is known for its modernized facilities, including spacious waiting areas, efficient security lanes, diverse dining and shopping options, and easy access to ground transportation.

If you have a connecting flight at SFO, the AirTrain provides free transport between terminals, making transfers seamless and stress-free.

Frontier Airlines Check-In Options at SFO

Passengers flying with Frontier Airlines have several check-in options, ensuring a smooth airport experience:

1. Online Check-In (Recommended for Faster Process)

 Check-in opens 24 hours before departure via the Frontier Airlines website or mobile app
 You can select your seat, pay for baggage, and download your boarding pass
 Avoid long lines at the airport by using this convenient option

2. Airport Check-In at SFO Terminal 1

 Head to the Frontier Airlines check-in counters in Terminal 1
 Arrive at least 2 hours before domestic flights and 3 hours before international flights
 Bag drop-off must be completed 60 minutes before departure for domestic flights

To avoid last-minute stress, it’s best to check in online and prepay for baggage to save time and money.

Baggage Policies for Frontier Airlines at SFO

Frontier Airlines is known for its low-cost fare model, meaning baggage policies are strictly enforced. Here’s what you need to know before heading to SFO Terminal 1:

Carry-On Baggage

 One personal item (like a backpack, purse, or laptop bag) is free
 Additional carry-on bags require an extra fee
 Maximum dimensions: 24″ x 16″ x 10″ (including handles and wheels)

Checked Baggage

 Fees apply to all checked luggage, with costs depending on weight and purchase timing
 Maximum size: 62 linear inches (L+W+H combined)
 Maximum weight: 40 lbs (18 kg) before overweight fees apply

 Tip: To avoid extra charges, prepay for checked and carry-on baggage online rather than at the airport.

Security and TSA PreCheck at SFO Terminal 1

 TSA security checkpoints are located inside Terminal 1
 TSA PreCheck is available for eligible passengers, allowing faster security clearance
 Arrive early (2 hours before domestic, 3 hours before international) to ensure enough time for security and boarding

Once you pass through security, you can check your flight status on airport display screens or relax at Terminal 1’s dining and seating areas before your flight.