Flights from San Francisco, CA (SFO) to San Diego, CA (SAN)

Tips when travelling through SFO

The best vegetarian food at San Francisco International Airport (SFO) is the veggie burger at Plant in Terminal 2 after security
There's a walkway between Terminal 3 and International G, and you don't have to re-clear security. That means more food and shopping options than you'd otherwise have if you stayed in just one. It also means that if the security line at one of the terminals is long, you can clear security at the other one.
You can bike to San Francisco International Airport and park your bicycle for free

Tips when travelling through SAN

San Diego International Airport (SAN) is one of the last remaining major airports in the US with only a single runway. If you stand on the roads just outside the airport, you can get incredible views of takeoffs and landings.
San Diego Airport is one of the closest airports in the country to its downtown. It's literally close enough to walk (if you have about an hour to spare, and not much luggage).
One unique feature is the "commuter terminal," which only handles the short flights that go to and from Los Angeles. While the security is generally very quick in the commuter terminal, there's no meaningful food or drink once you clear security.

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