Inside Secret for SFO Travelers Flying United Airlines

If you travel domestic routes on United Airlines (Terminal 3) through San Francisco Airport, did you know you can access International security lines (G gates), instead of the long and congested ones in the domestic terminal? It's true! This is particularly beneficial for those riding BART to SFO or getting dropped off - without bags to check, because it means you can immediately clear security upon arriving at the airport. Plus, the international terminal is just an enjoyable, peaceful place to relax, with improved dining options, compared to terminal 3. If you have bags to check you still need to complete that at the domestic terminal, and therefore using international security checkpoint will probably not be beneficial.

A new walkway opened at SFO last December allows passengers to freely walk between International Terminal G to Domestic Terminal 3 - post security.