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Security Checkpoints

Security Checkpoints

Terminal A and B

Security checkpoints open at 4:00 a.m. in Terminal A and 4:15 a.m. in Terminal B. Only ticketed passengers are allowed past security checkpoints. Once through the security checkpoint, access to all concessions and retail options in both Terminal A and Terminal B is available to all travelers.

NOTE: Passengers with a boarding pass and only carry-on luggage may enter the terminals through either checkpoint. 

Arrival Time

TSA recommends that you arrive 2 hours prior to scheduled departure for check in and security processing for domestic flights and 3 hours prior for international flights. Before arriving at the airport, review your airline’s departure terminal, minimum check-in time and ticket counter hours. Plan ahead for weather and traffic delays. View your flight status online

TSA Security Guidance for Travelers

Find information from the TSA about common security screening questions.


Starting May 7, 2025, all passengers 18 years of age and older are required to show either a REAL ID-compliant driver’s license or identification card, a state-issued enhanced driver’s license, or a TSA-acceptable form of identification at airport security checkpoints in order to fly domestically. For a list of acceptable forms of identification, please visit the Transportation Security Administration (TSA) website for information about acceptable identification for travelers. 

Prohibited Items

Certain items are not allowed beyond security checkpoints, in carry-on luggage or on aircraft. For current information please read the TSA Prohibited Items list.

CLEAR now offers in-person TSA PreCheck™ enrollments and renewals at SJC daily from 6 a.m. to 8 p.m.