Vehicle class sets the floor
Sedans carry the lowest Bay Area planning ranges, SUVs add capacity for checked bags, car seats, and executive arrivals, and Sprinters are quoted individually for point-to-point work because passenger count, luggage, route, and staging change the price more than distance does. When a group sits near the seat or luggage boundary, ask for both a Sprinter quote and a two-SUV quote before approving either.
Three airports, three pickup workflows
SFO publishes its ground-transportation guidance with ride-app and taxi pickup handled separately from pre-arranged transportation, and its charter pick-up areas sit in the courtyards on the Arrivals / Baggage Claim Level. SJC says limousine service must be pre-arranged and publishes reserved pickup locations, and OAK lists limousine service within its passenger-facing ground-transportation categories. A useful quote does not just say the airport name — it states the terminal, the pickup point, the included wait window, and how domestic versus international arrivals are treated.
Bridges and tolls are pass-through items
East Bay and South Bay routings cross bridges or run long freeway segments, and the routing choice affects both timing and cost. Bridge tolls, airport costs, parking, and venue or winery charges are handled as pass-through items per the quote rather than baked into a flat fare, so ask the quote to state its routing assumption and how those items are itemized.
Hourly versus point-to-point
California charter-party carriers charge on mileage, time, or a combination, which is why the structure of the trip matters as much as the distance. Point-to-point is cleaner for one confirmed pickup and one confirmed drop, such as SFO to a downtown hotel. Hourly is cleaner when the day includes Silicon Valley campus visits, investor meetings, dinners, a wine-country itinerary, or an event return with an uncertain release time, because the same assigned vehicle stays with the passenger instead of re-dispatching between stops.
Event-date demand
Moscone conventions, Chase Center nights, and Levi's Stadium dates change staging, curb access, wait time, and post-event pickup logistics. Event transfers carry their own planning range, and the quote should define the entrance, the hold-or-return plan, and who can approve same-day changes before the event begins.
Gratuity, cancellation, and overtime are quote terms
The written quote — not a verbal estimate — should state how gratuity is handled, what the cancellation window is, how overtime is billed past the included wait or hourly block, and how extra stops added after confirmation are priced. Comparing two San Francisco quotes without comparing these terms is comparing incomplete numbers.