San Francisco Arrival Guide: SFO, BART and the Bay’s Three-Airport Arithmetic

Three airports, one sensible default

San Francisco International (SFO) is where nearly every international flight lands: our route database records around 74 destinations served by roughly 35 carriers — the trans-Pacific gateway above all, with United’s hub and the Asian and European arrivals concentrated in the international terminal. Oakland (OAK) and San Jose (SJC) are the low-cost and domestic fields (31 and 27 recorded destinations, about 9 carriers each), and both are genuinely in their own cities — Oakland across the Bay, San Jose an hour south.

The code-check rule matters more here than in most American cities: an “SF” search can surface an OAK fare that saves $40 and adds a Bay crossing to your arrival. That trade is real for travellers whose destination is the East Bay — for a San Francisco hotel, price the BART-versus-bus reality before calling the saving a win.

Getting into the city: BART, the OAK connector and rideshares (2026 fares)

From SFO, BART is the clean default: the free AirTrain loops all terminals to the BART station beside the International Terminal, and trains run direct to downtown stations (Civic Center, Powell, Montgomery, Embarcadero) in about 30 minutes for roughly $11 with a Clipper card or contactless tap — no transfer, no taxi queue. Taxis and rideshares to downtown or the Mission run $35–50 off-peak and crawl past $70 in rush hour on the 101.

From Oakland, the BART connector (the little automated people-mover from the terminal to Coliseum station) plus a train to downtown SF costs about $12 total in 40–50 minutes — and to an Oakland or Berkeley hotel it beats SFO outright. From San Jose there is no rail to the door: the Route 60 bus links the terminal to Caltrain and VTA light rail, or you ride a rideshare the whole way ($60–80 to the city). The decision rule: international or downtown-bound, SFO; East Bay destination or a won-the-lottery fare, OAK; South Bay or Silicon Valley, SJC.

First-day practicalities: ESTA, layers, tips and the Bay’s rhythms

Entry first, as always: visa-free travellers need the US ESTA ($21, online or app, apply a week out) and visitors with US visas skip it. SFO immigration at the international terminal runs kiosks and moves reasonably at peak, but the trans-Pacific banks land in waves — build slack into the afternoon.

The wardrobe note is not a joke: San Francisco runs three climates in one day. Summer is the fog season (Mark Twain’s apocryphal complaint lands differently when July is colder than January), the Sunset stays grey while the Mission bakes, and the universal local answer is layers — a light jacket lives in your day bag whatever the forecast app claims. Money is card-first everywhere; tipping is the American 15–20% at sit-down service. Data via a US eSIM bought before you fly.

The rhythm that surprises visitors: San Francisco eats early by big-city standards (kitchens peak 18:00–20:30) and the last BART trains thin before midnight — a late arrival is rideshare territory, which is one more reason the airport hotel or an early landing pays.

Getting around: BART, Muni, cable cars and the walking hills

BART covers the Bay-crossing spine (downtown, Berkeley, Oakland, the airports); Muni covers the city itself — buses, the historic streetcars on the F line, the metro under Market Street — all on one Clipper card or MuniMobile app, with single rides around $2.50 and day passes that pay off by the third ride. The cable cars are a $8-attraction, not transport: ride Powell–Hyde once for the bay views, then take the bus like a local.

Walking is the honest way to know San Francisco, with two caveats: the hills are real (a “10-minute walk” can be 10 minutes up), and the fog wind cuts through cotton. Google Maps handles the transit stacks well. One discipline note that locals will echo: keep phone and bag in front of you on crowded downtown platforms — ordinary city sense, nothing more.

Where to base yourself: five areas, five different trips

Union Square and Nob Hill put you at the tourist centre with BART at the door — convenient, busy, priced like it. The Mission and Hayes Valley are the food-and-bars pick: taquerias, boutiques, sunnier microclimate, a short BART hop from the airport line. SoMa suits convention-goers and Giants fans with the stadium walk and the museum cluster. Fisherman’s Wharf is the family base — postcard-adjacent, quiet at night, and a bus ride from everything else. Across the water, Berkeley and Oakland reward the budget-and-bookshops traveller with a direct BART ride and rents the city lost decades ago.

Prices swing with conference season (Moscone’s calendar quietly doubles downtown rates) — check your dates rather than any average. What is stable: fog-side quarters cost less than sun-side ones, and a Mission hotel beats a Union Square twin on both character and price.

The mistakes that ruin first days (and the fixes)

Booking “San Francisco” without reading the airport code: the SJC surprise costs an hour and $70. Packing for California summer as advertised: the fog does not read brochures — bring the jacket. Riding a cable car as transport instead of attraction: the F-line streetcar does the same route for a fraction. Eating at the Wharf because it is there: walk two blocks off the water and both quality and prices improve. Planning Wine Country on arrival day: put it mid-trip, after the jet lag, when the rental car earns itself. And the classic: scheduling Golden Gate Bridge and Golden Gate Park back-to-back — they are nowhere near each other; the bridge belongs with a Crissy Field or Sausalito pairing.