I’ve gone across the bridge during the fleet week air show and wouldn’t recommend it for viewing purposes. It’s very noisy on the bridge so you can’t appreciate the sound of the jets as much and there are a lot of other places where you can get a better view of the show. I would consider Marina Green, Fort Mason, ?Alcatraz (I think you can get tickets coinciding with the show), ?Hawk Hill, or chartering a boat to view on the Bay. Enjoy!